WO2007106293A1 - Surface active bleach and dynamic ph - Google Patents
Surface active bleach and dynamic ph Download PDFInfo
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- WO2007106293A1 WO2007106293A1 PCT/US2007/004312 US2007004312W WO2007106293A1 WO 2007106293 A1 WO2007106293 A1 WO 2007106293A1 US 2007004312 W US2007004312 W US 2007004312W WO 2007106293 A1 WO2007106293 A1 WO 2007106293A1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38654—Preparations containing enzymes, e.g. protease or amylase containing oxidase or reductase
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/667—Neutral esters, e.g. sorbitan esters
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0047—Other compounding ingredients characterised by their effect pH regulated compositions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2093—Esters; Carbonates
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/221—Mono, di- or trisaccharides or derivatives thereof
Definitions
- the present invention provides methods and compositions for dynamic pH control, particularly in detergent applications.
- the detergent compositions find use in surface removal of soils from fabrics, including clothing.
- the present invention provides combinations of enzymes to provide for dynamic pH control. BACKGROUND OF THE INVENTION
- Detergent and other cleaning compositions typically include a complex combination of active ingredients.
- cleaning products include a surfactant system, enzymes for cleaning, bleaching agents, builders, suds suppressors, soil-suspending agents, soil-release agents, optical brighteners, softening agents, dispersants, dye transfer inhibition compounds, abrasives, bactericides, and perfumes.
- stains that are difficult to completely remove.
- residue build-up which results in discoloration (e.g., yellowing) and diminished aesthetics due to incomplete cleaning.
- stains are composed of complex mixtures of fibrous material, mainly incorporating carbohydrates and carbohydrate derivatives, fiber, and cell wall components (e.g., plant material, wood, mud/clay based soil, and fruit). These stains present difficult challenges to the formulation and use of cleaning compositions.
- colored garments tend to wear and show appearance losses. A portion of this color loss is due to abrasion in the laundering process, particularly in automated washing and drying machines.
- tensile strength loss of fabric appears to be an unavoidable result of mechanical and chemical action due to use, wearing, and/or washing and drying.
- a means to efficiently and effectively wash colored garments so that these appearance losses are minimized is needed.
- the present invention provides methods and compositions for dynamic pH control, particularly in detergent applications.
- the detergent compositions find use in surface removal of soils from fabrics, including clothing.
- Dynamic pH control through the wash allows performance ingredients to fully utilize their potential in the suitable pH range to deliver superior cleaning benefits.
- pH changes of the washing solution from weak alkaline pH to acidic pH
- the present invention further provides compositions comprising a sufficient amount of at least one enzyme and at least one substrate for the enzyme, sufficient to drop the pH of a wash liquor to at least about pH 7 or less.
- the methods as set forth herein ⁇ e.g., Example 3 are used in order to assess the pH drop.
- the pH drop is to about pH 6 or less.
- the enzyme is selected from hydrolases and oxidases.
- the hydrolase is selected from perhydrolase, carboxylate ester hydrolase, thioester hydrolase, phosphate monoester hydrolase, phosphate diester hydrolase, thioether hydrolase, ⁇ -amino-acyl-peptide hydrolase, peptidyl-amino acid hydrolase, acyl-amino acid hydrolase, dipeptide hydrolase, peptidyl-peptide hydrolase, pepsin, pepsin B, remain, trypsin, chymotrypsin A, chymotrypsin B, elastase, enterokinase, cathepsin C, papain, chymopapain, f ⁇ cin, thrombin, fibrinolysin, renin, subtilisin, aspergillopeptidase A, collagenase, clostridiopeptidase B, kallikrein, gastrisin, cathepsin D, bromelin,
- the hydrolase comprises at least one enzyme having perhydrolase activity (e.g., perhydrolases, as set forth herein).
- the oxidase is selected from aldose oxidase, galactose oxidase, cellobiose oxidase, pyranose oxidase, sorbose substrate comprises an ester moiety.
- the substrate comprising an ester moiety is selected from ethyl acetate, triacetin, tributyrin, neodol esters, ethoxylated neodol acetate esters, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, nonanoic acid, decanoic acid, dodecanoic acid, myristic acid, palmitic acid, stearic acid, and oleic acid.
- the substrate comprising the ester moiety has the formula R 1 O x [(R 2 ) m (R 3 ) n ]p, wherein R 1 is H or a moiety that comprises a primary, secondary, tertiary or quaternary amine moiety, the R 1 moiety that comprises an amine moiety being selected from a substituted or unsubstituted alkyl, heteroalkyl, alkenyl, alkynyl, aryl, alkylaryl, alkylheteroaryl, and heteroaryl; or wherein R 1 comprises from 1 to 50,000 carbon atoms, from 1 to 10,000 carbon atoms, or even from 2 to 100 carbon atoms; each R 2 is an alkoxylate moiety, in one aspect of the present invention each R 2 is independently an ethoxylate, propoxylate or butoxylate moiety; R 3 is an ester-forming moiety having the formula: R 4 CO- wherein R 4 may be H, substituted or unsubstit
- compositions set forth herein comprise, based on total composition weight, from about 0.01 to about 99.9 of the substrate comprising an ester moiety. In some preferred embodiments, the compositions comprise, based on total composition weight, from about 0.1 to about 50 of the substrate comprising an ester moiety. In still further preferred embodiments, the compositions further comprise at least one source of hydrogen peroxide and/or hydrogen peroxide. In some preferred embodiments, the compositions further comprise at least one adjunct ingredient.
- the at least one adjunct ingredient is selected from surfactants, builders, chelating agents, dye transfer inhibiting agents, deposition aids, dispersants, additional enzymes, and enzyme stabilizers, catalytic materials, bleach activators, bleach boosters, preformed peracids, polymeric dispersing agents, clay soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, perfumes, structure elasticizing agents, fabric softeners, carriers, hydrotropes, processing aids and/or pigments.
- the present invention also provides methods for cleaning at least a portion of a surface and/or fabric comprising: the optional steps of washing and/or rinsing a surface and/or fabric; contacting the surface and/or fabric with at least one of the compositions set forth herein and/or a wash liquor comprising at least one of the compositions set forth herein; and optionally washing and/or rinsing the surface and/or fabric.
- the pH of the wash liquor drops essentially linearly.
- the surface and/or fabric is exposed to the wash liquor having a pH of less than about 6.5 for a period of at least about 2 minutes.
- the present invention further provides methods for cleaning at least a portion of a surface and/or fabric comprising: the optional steps of washing and/or rinsing a surface and/or fabric; contacting the surface and/or fabric with at least one composition set forth herein and/or a wash liquor comprising at least one composition set forth herein; and optionally washing and/or rinsing the surface and/or fabric, wherein the contacting occurs during a wash cycle.
- the pH of the wash liquor drops essentially linearly.
- the pH of the wash liquor drops to 6.5 or less within the last 25% to 50% of the wash cycle.
- the surface and/or fabric is exposed to the wash liquor having a pH of less than about 6.5 for a period of at least about 2 minutes.
- Figures IA-C provide graphs showing the effects of pH on cleaning performance with peracetic acid. Panel A provides results for T-shirts, while Panel B provides results for pillowcases, and Panel C provides results for tea stains.
- Figure 2 provides a graph showing the titration curve for dingy ballast.
- Figures 3A-C provide graphs showing substrate and enzyme parameters involved in generating a dynamic pH performance benefit.
- Panel A provides a graph showing the pH profile of treatments
- Panel B provides data for T-shirts, pillowcases, containing hydrophobic soil, and the average of such data
- Panel C provides data for wine, tea, containing hydrophilic soils and the average of such data.
- Figures 4A-C provide graphs showing results of experiments conducted to determine the effects of substrates and cleaning performance.
- Panel A provides a graph showing the pH profile of treatments
- Panel B provides data for T-shirts, pillowcases, containing hydrophobic soil, and the average of such data
- Panel C provides data for wine, tea, containing hydrophilic soils and the average of such data.
- Figures 5A-C provide graphs showing comparisons of cleaning performance of a dynamic pH detergent and commercial detergents.
- Panel A provides a graph showing the pH profile of treatments
- Panel B provides data for T-shirts, pillowcases, containing hydrophobic soil, and the average of such data
- Panel C provides data for wine, tea, and containing hydrophilic soils and the average of such data.
- the present invention provides methods and compositions for dynamic pH control, particularly in detergent applications.
- the detergent compositions find use in surface removal of soils from fabrics, including clothing.
- the present invention provides combinations of enzymes to provide for dynamic pH control throughout the washing cycle.
- dynamic pH refers to a change in the pH of a cleaning system during cleaning that is due to the action of at least one enzyme on at least one substrate present in the cleaning system. In particularly preferred embodiments, the dynamic pH condition results in cleaning benefits, such as improved wash performance of detergents.
- the term “bleaching” refers to the treatment of a material (e.g., fabric, laundry, etc.) or surface for a sufficient length of time and under appropriate pH and temperature conditions to effect a brightening (i.e., whitening) and/or cleaning of the material.
- a material e.g., fabric, laundry, etc.
- chemicals suitable for bleaching include but are not limited to ClO 2 , H 2 O 2 , peracids, NO 2 , etc.
- the term “disinfecting” refers to the removal of contaminants from the surfaces, as well as the inhibition or killing of microbes on the surfaces of items. It is not intended that the present invention be limited to any particular surface, item, or contaminant(s) or microbes to be removed.
- the term "perhydrolase” refers to an enzyme that is capable of catalyzing a reaction that results in the formation of sufficiently high amounts of peracid suitable for applications such as cleaning, bleaching, and disinfecting.
- the perhydrolase enzymes of the present invention produce very high perhydrolysis to hydrolysis ratios. The high perhydrolysis to hydrolysis ratios of these distinct enzymes makes these enzymes suitable for use in a very wide variety of applications.
- the perhydrolases of the present invention are characterized by having distinct tertiary structure and primary sequence.
- the perhydrolases of the present invention comprises distinct primary and tertiary structures.
- the perhydrolases of the present invention comprise distinct quaternary structure.
- the perhydrolase of the present invention is the M. smegmatis perhydrolase, while in alternative embodiments, the perhydrolase is a variant of this perhydrolase, while in still further embodiments, the perhydrolase is a homolog of this perhydrolase.
- a monomelic hydrolase is engineered to produce a multimeric enzyme that has better perhydrolase activity than the monomer.
- the present invention be limited to this specific M. smegmatis perhydrolase, specific variants of this perhydrolase, nor specific homologs of the perhydrolase provided in US04/40438, incorporated herein by reference in its entirety.
- personal care products means products used in the cleaning, bleaching and/or disinfecting of hair, skin, scalp, and teeth, including, but not limited to shampoos, body lotions, shower gels, topical moisturizers, toothpaste, and/or other topical cleansers. In some particularly preferred embodiments, these products are utilized on humans, while in other embodiments, these products find use with non-human animals (e.g., in veterinary applications).
- cleaning compositions and “cleaning formulations” refer to compositions that find use in the removal of undesired compounds from items to be cleaned, such as fabric, dishes, contact lenses, other solid substrates, hair (shampoos), skin (soaps and creams), teeth (mouthwashes, toothpastes) etc.
- the term encompasses any materials/compounds selected for the particular type of cleaning composition desired and the form of the product (e.g., liquid, gel, granule, or spray composition), as long as the composition is compatible with the perhydrolase and other enzyme(s) used in the composition.
- the specific selection of cleaning composition materials are readily made by considering the surface, item or fabric to be cleaned, and the desired form of the composition for the cleaning conditions during use.
- the terms further refer to any composition that is suited for cleaning, bleaching, disinfecting, and/or sterilizing any object and/or surface. It is intended that the terms include, but are not limited to detergent compositions (e.g., liquid and/or solid laundry detergents and fine ⁇ fabric detergents; hard surface cleaning formulations, such as for glass, wood, ceramic and metal counter tops and windows; carpet cleaners; oven cleaners; fabric fresheners; fabric softeners; and textile and laundry pre-spotters, as well as dish detergents).
- detergent compositions e.g., liquid and/or solid laundry detergents and fine ⁇ fabric detergents
- hard surface cleaning formulations such as for glass, wood, ceramic and metal counter tops and windows
- carpet cleaners oven cleaners
- fabric fresheners fabric softeners
- textile and laundry pre-spotters as well as dish detergents
- cleaning composition includes unless otherwise indicated, granular or powder-form all-purpose or heavy-duty washing agents, especially cleaning detergents; liquid, gel or paste-form all-purpose washing agents, especially the so-called heavy-duty liquid (HDL) types; liquid fine-fabric detergents; hand dishwashing agents or light duty dishwashing agents, especially those of the high-foaming type; machine dishwashing agents, including the various tablet, granular, liquid and rinse-aid types for household and institutional use; liquid cleaning and disinfecting agents, including antibacterial hand- wash types, cleaning bars, mouthwashes, denture cleaners, car or carpet shampoos, bathroom cleaners; hair shampoos and hair-rinses; shower gels and foam baths and metal cleaners; as well as cleaning auxiliaries such as bleach additives and "stain-stick" or pre-treat types.
- HDL heavy-duty liquid
- cleaning and disinfecting agents including antibacterial hand- wash types, cleaning bars, mouthwashes, denture cleaners, car or carpet shampoos, bathroom cleaners; hair shampoos and
- detergent composition and “detergent formulation” are used in reference to mixtures which are intended for use in a wash medium for the cleaning of soiled objects.
- the term is used in reference to laundering fabrics and/or garments (e.g., “laundry detergents”).
- laundry detergents e.g., "laundry detergents”
- the term refers to other detergents, such as those used to clean dishes, cutlery, etc. (e.g., "dishwashing detergents”). It is not intended that the present invention be limited to any particular detergent formulation or composition.
- the term encompasses detergents that contain surfactants, transferase(s), hydrolytic enzymes, oxido reductases, builders, bleaching agents, bleach activators, bluing agents and fluorescent dyes, caking inhibitors, masking agents, enzyme activators, antioxidants, and solubilizers.
- "enhanced performance" in a detergent is defined as increasing cleaning of bleach-sensitive stains (e.g., grass, tea, wine, blood, dingy, etc.), as determined by usual evaluation after a standard wash cycle.
- the enzymes of the present invention provide enhanced performance in the oxidation and removal of colored stains and soils.
- the enzymes of the present invention provide enhanced performance in the removal and/or decolorization of stains. In yet additional embodiments, the enzymes of the present invention provides enhanced performance in the removal of lipid-based stains and soils. In still further embodiments, the present invention provides enhanced performance in removing soils and stains from dishes and other items.
- hard surface cleaning composition refers to detergent compositions for cleaning hard surfaces such as floors, walls, tile, bath and kitchen fixtures, and the like. Such compositions are provided in any form, including but not limited to solids, liquids, emulsions, etc.
- washing composition refers to all forms for compositions for cleaning dishes, including but not limited to granular and liquid forms.
- fabric cleaning composition refers to all forms of detergent compositions for cleaning fabrics, including but not limited to, granular, liquid and bar forms.
- textile refers to woven fabrics, as well as staple fibers and filaments suitable for conversion to or use as yarns, woven, knit, and non- woven fabrics.
- the term encompasses yarns made from natural, as well as synthetic (e.g., manufactured) fibers.
- textile materials is a general term for fibers, yarn intermediates, yarn, fabrics, and products made from fabrics (e.g., garments and other articles).
- fabric encompasses any textile material. Thus, it is intended that the term encompass garments, as well as fabrics, yarns, fibers, non-woven materials, natural materials, synthetic materials, and any other textile material.
- the term "compatible,” means that the cleaning composition materials do not reduce the enzymatic activity of the perhydrolase to such an extent that the perhydrolase is not effective as desired during normal use situations.
- Specific cleaning composition materials are exemplified in detail hereinafter.
- effective amount of enzyme refers to the quantity of enzyme necessary to achieve the enzymatic activity required in the specific application. Such effective amounts are readily ascertained by one of ordinary skill in the art and are based on many factors, such as the particular enzyme variant used, the cleaning application, the specific composition of the cleaning composition, and whether a liquid or dry (e.g., granular, bar) composition is required, and the like.
- non-fabric cleaning compositions encompass hard surface cleaning compositions, dishwashing compositions, and personal care cleaning compositions (e.g. , oral cleaning compositions, denture cleaning compositions, personal cleansing compositions, etc.).
- oral cleaning compositions refers to dentifrices, toothpastes, toothgels, toothpowders, mouthwashes, mouth sprays, mouth gels, chewing gums, lozenges, sachets, tablets, biogels, prophylaxis pastes, dental treatment solutions, and the like.
- Oral care compositions that find use in conjunction with the perhydrolases of the present invention are well known in the art (See e.g., U.S. Patent Nos 5,601,750, 6,379,653, and 5,989,526, all of which are incorporated herein by reference).
- oxidizing chemical refers to a chemical that has the capability of bleaching any material.
- the oxidizing chemical is present at an amount, pH and temperature suitable for bleaching.
- the term includes, but is not limited to hydrogen peroxide and peracids.
- acyl is the general name for organic acid groups, which are the residues of carboxylic acids after removal of the -OH group (e.g., ethanoyl chloride, CH 3 CO-CI, is the acyl chloride formed from ethanoic acid, CH 3 COO-H).
- ethanoyl chloride CH 3 CO-CI
- CH 3 COO-H ethanoic acid
- acylation refers to the chemical transformation which substitutes the acyl (RCO-) group into a molecule, generally for an active hydrogen of an -OH group.
- transferase refers to an enzyme that catalyzes the transfer of functional compounds to a range of substrates.
- leaving group refers to the nucleophile which is cleaved from the acyl donor upon substitution by another nucleophile.
- the term "enzymatic conversion” refers to the modification of a substrate to an intermediate or the modification of an intermediate to an end-product by contacting the substrate or intermediate with an enzyme.
- contact is made by directly exposing the substrate or intermediate to the appropriate enzyme.
- contacting comprises exposing the substrate or intermediate to an organism that expresses and/or excretes the enzyme, and/or metabolizes the desired substrate and/or intermediate to the desired intermediate and/or end-product, respectively.
- detergent stability refers to the stability of a detergent composition. In some embodiments, the stability is assessed during the use of the detergent, while in other embodiments, the term refers to the stability of a detergent composition during storage.
- oxidative stability refers to the ability of a protein to function under oxidative conditions. In particular, the term refers to the ability of a protein to function in the presence of various concentrations OfH 2 O 2 and/or peracid. Stability under various oxidative conditions can be measured either by standard procedures known to those in the art and/or by the methods described herein.
- a substantial change in oxidative stability is evidenced by at least about a 5% or greater increase or decrease (in most embodiments, it is preferably an increase) in the half-life of the enzymatic activity, as compared to the enzymatic activity present in the absence of oxidative compounds.
- pH stability refers to the ability of a protein to function at a particular pH. In general, most enzymes have a finite pH range at which they will function. In addition to enzymes that function in mid-range pHs ⁇ i.e., around pH 7), there are enzymes that are capable of working under conditions with very high or very low pHs. Stability at various pHs can be measured either by standard procedures known to those in the art and/or by the methods described herein. A substantial change in pH stability is evidenced by at least about 5% or greater increase or decrease (in most embodiments, it is preferably an increase) in the half-life of the enzymatic activity, as compared to the enzymatic activity at the enzyme's optimum pH. However, it is not intended that the present invention be limited to any pH stability level nor pH range.
- thermal stability refers to the ability of a protein to function at a particular temperature. In general, most enzymes have a finite range of temperatures at which they will function. In addition to enzymes that work in mid-range temperatures (e.g., room temperature), there are enzymes that are capable of working in very high or very low temperatures. Thermal stability can be measured either by known procedures or by the methods described herein. A substantial change in thermal stability is evidenced by at least about 5% or greater increase or decrease (in most embodiments, it is preferably an increase) in the half-life of the catalytic activity of a mutant when exposed to a different temperature (i.e., higher or lower) than optimum temperature for enzymatic activity.
- the term "chemical stability” refers to the stability of a protein (e.g., an enzyme) towards chemicals that adversely affect its activity.
- chemicals include, but are not limited to hydrogen peroxide, peracids, anionic detergents, cationic detergents, non-ionic detergents, chelants, etc.
- the present invention be limited to any particular chemical stability level nor range of chemical stability.
- alteration in substrate specificity refers to changes in the substrate specificity of an enzyme.
- a change in substrate specificity is defined as a difference between the K cat /K m ratio observed with an enzyme compared to enzyme variants or other enzyme compositions.
- Enzyme substrate specificities vary, depending upon the substrate tested. The substrate specificity of an enzyme is determined by comparing the catalytic efficiencies it exhibits with different substrates. These determinations find particular use in assessing the efficiency of mutant enzymes, as it is generally desired to produce variant enzymes that exhibit greater ratios for particular substrates of interest.
- the perhydrolase enzymes of the present invention are more efficient in producing peracid from an ester substrate than enzymes currently being used in cleaning, bleaching and disinfecting applications.
- Another example of the present invention is a perhydrolase with a lower activity on peracid degradation compared to the wild type.
- Another example of the present invention is a perhydrolase with higher activity on more hydrophobic acyl groups than acetic acid.
- At least one hydrogen in the compound or radical is replaced with a moiety containing one or more (i) carbon, (ii) oxygen, (iii) sulfur, (iv) nitrogen or (v) halogen atoms; or
- Moieties which may replace hydrogen as described in (b) immediately above, that contain only carbon and hydrogen atoms, are hydrocarbon moieties including, but not limited to, alkyl, alkenyl, alkynyl, alkyldienyl, cycloalkyl, phenyl, alkyl phenyl, naphthyl, anthryl, phenanthryl, fluoryl, steroid groups, and combinations of these groups with each other and with polyvalent hydrocarbon groups such as alkylene, alkylidene and alkylidyne groups.
- Moieties containing oxygen atoms that may replace hydrogen as described in (b) immediately above include, but are not limited to, hydroxy, acyl or keto, ether, epoxy, carboxy, and ester containing groups.
- Moieties containing sulfur atoms that may replace hydrogen as described in (b) immediately above include, but are not limited to, the sulfur-containing acids and acid ester groups, thioether groups, mercapto groups and thioketo groups.
- Moieties containing nitrogen atoms that may replace hydrogen as described in (b) immediately above include, but are not limited to, amino groups, the nitro group, azo groups, ammonium groups, amide groups, azido groups, isocyanate groups, cyano groups and nitrile groups.
- Moieties containing halogen atoms that may replace hydrogen as described in (b) immediately above include chloro, bromo, fluoro, iodo groups and any of the moieties previously described where a hydrogen or a pendant alkyl group is substituted by a halo group to form a stable substituted moiety.
- any of the above moieties (b)(i) through (b)(v) can be substituted into each other in either a monovalent substitution or by loss of hydrogen in a polyvalent substitution to form another monovalent moiety that can replace hydrogen in the organic compound or radical.
- the terms “purified” and “isolated” refer to the removal of contaminants from a sample.
- an enzyme of interest is purified by removal of contaminating proteins and other compounds within a solution or preparation that are not the enzyme of interest.
- recombinant enzymes of interest are expressed in bacterial or fungal host cells and these recombinant enzymes of interest are purified by the removal of other host cell constituents; the percent of recombinant enzyme of interest polypeptides is thereby increased in the sample.
- protein of interest refers to a protein (e.g. , an enzyme or "enzyme of interest”) which is being analyzed, identified and/or modified.
- Naturally-occurring, as well as recombinant proteins find use in the present invention.
- protein refers to any composition comprised of amino acids and recognized as a protein by those of skill in the art.
- the terms “protein,” “peptide” and polypeptide are used interchangeably herein. Wherein a peptide is a portion of a protein, those skilled in the art understand the use of the term in context.
- proteins are considered to be "related proteins.”
- these proteins are derived from a different genus and/or species, including differences between classes of organisms (e.g., a bacterial protein and a fungal protein).
- these proteins are derived from a different genus and/or species, including differences between classes of organisms (e.g., a bacterial enzyme and a fungal enzyme).
- related proteins are provided from the same species. Indeed, it is not intended that the present invention be limited to related proteins from any particular source(s).
- related proteins encompasses tertiary structural homologs and primary sequence homologs ⁇ e.g., the enzymes of the present invention). In further embodiments, the term encompasses proteins that are immunologically cross-reactive. In some most particularly preferred embodiments, the related proteins of the present invention exhibit very high ratios of perhydrolysis to hydrolysis.
- the detergent compositions of the present invention are provided in any suitable form, including for example, as a liquid diluent, in granules, in emulsions, in gels, and pastes.
- the detergent is preferably formulated as granules.
- the granules are formulated to additionally contain a protecting agent (See e.g., U.S. Appln. Ser. No. 07/642,669 filed January 17, 1991, incorporated herein by reference).
- the granules are formulated so as to contain materials to reduce the rate of dissolution of the granule into the wash medium (See e.g., U.S. Patent No.
- the perhydrolase enzymes of the present invention find use in formulations in which substrate and enzyme are present in the same granule.
- the efficacy of the enzyme is increased by the provision of high local concentrations of enzyme and substrate (See e.g., U.S. Patent Application Publication US2003/0191033, herein incorporated by reference).
- the detergent compositions of the present invention employ a surface active agent (i.e., surfactant) including anionic, non-ionic and ampholytic surfactants well known for their use in detergent compositions.
- a surface active agent i.e., surfactant
- anionic, non-ionic and ampholytic surfactants well known for their use in detergent compositions.
- surfactants suitable for use in the present invention are described in British Patent Application No. 2 094 826 A, incorporated herein by reference.
- mixtures surfactants are used in the present invention.
- Suitable anionic surfactants for use in the detergent composition of the present invention include linear or branched alkylbenzene sulfonates; alkyl or alkenyl ether sulfates having linear or branched alkyl groups or alkenyl groups; alkyl or alkenyl sulfates; olefin sulfonates; alkane sulfonates and the like.
- Suitable counter ions for anionic surfactants include alkali metal ions such as sodium and potassium; alkaline earth metal ions such as calcium and magnesium; ammonium ion; and alkanolamines having 1 to 3 alkanol groups of carbon number 2 or 3.
- Ampholytic surfactants that find use in the present invention include quaternary ammonium salt sulfonates, betaine-type ampholytic surfactants, and the like. Such ampholytic surfactants have both the positive and negative charged groups in the same molecule.
- Nonionic surfactants that find use in the present invention generally comprise polyoxyalkylene ethers, as well as higher fatty acid alkanolamides or alkylene oxide adduct thereof, fatty acid glycerine monoesters, and the like.
- the surfactant or surfactant mixture included in the detergent compositions of the present invention is provided in an amount from about 1 weight percent to about 95 weight percent of the total detergent composition and preferably from about 5 weight percent to about 45 weight percent of the total detergent composition.
- numerous other components are included in the compositions of the present invention. Many of these are described below. It is not intended that the present invention be limited to these specific examples. Indeed, it is contemplated that additional compounds will find use in the present invention. The descriptions below merely illustrate some optional components.
- Proteins, particularly the perhydrolase and/or other enzyme(s) of the present invention are typically formulated into known powdered and liquid detergents having pH between 3 and 12.O 7 at levels of about .001 to about 5% (preferably 0.1% to 0.5%) by weight.
- these detergent cleaning compositions further include other enzymes (e.g., proteases, amylases, mannanases, peroxidases, oxido reductases, cellulases, lipases, cutinases, pectinases, pectin lyases, xylanases, and/or endoglycosidases), as well as builders and stabilizers.
- enzymes e.g., proteases, amylases, mannanases, peroxidases, oxido reductases, cellulases, lipases, cutinases, pectinases, pectin lyases, xylanases, and/or endoglycos
- perhydrolase variants of the present invention find use in any purpose that the native or wild-type enzyme is used.
- such variants can be used, for example, in bar and liquid soap applications, dish care formulations, surface cleaning applications, contact lens cleaning solutions or products, , waste treatment, textile applications, disinfectants, skin care, oral care, hair care, etc.
- the variant perhydrolases of the present invention may comprise, in addition to decreased allergenicity, enhanced performance in a detergent composition (as compared to the wild-type or unmodified perhydrolase).
- proteins of the invention find use in cleaning, bleaching, and disinfecting compositions without detergents, again either alone or in combination with a source of hydrogen peroxide, an ester substrate (e.g., either added or inherent in the system utilized, such as with stains that contain esters, that contains esters etc), other enzymes, surfactants, builders, stabilizers, etc. Indeed it is not intended that the present invention be limited to any particular formulation or application.
- the present invention provides methods and compositions for dynamic pH control, particularly in detergent applications.
- the detergent compositions find use in surface removal of soils from fabrics, including clothing.
- the present invention provides combinations of enzymes to provide for dynamic pH control. Indeed, it is contemplated that any enzyme with hydrolyzing or perhydrolyzing activity will find use alone and/or in combination with other enzymes in the present invention.
- Standard automatic washing machine operation includes at least one wash cycle, at least one spin cycle which removes significant portions of the washing liquor from the wash cycle, a final rinse cycle, and a final spin cycle.
- Cleaning agents e.g., surfactants and detergent builders are commonly added to the washing machine drum during the wash and/or rinse cycle to assist in the removal of soils and stains from fabrics.
- additional materials such as fabric care benefit agents (e.g., softeners, feel modifiers, anti-wrinkling agents, etc.), are sometimes added to a wash load during the rinse cycle and not the wash cycle, in order to avoid interference from components present in the wash liquor.
- Some of these materials are deposited on the fabric, in order to provide maximum benefit. In some cases, it is desirable to maximize the potential deposition of these materials on the fabrics.
- the pH of the aqueous wash liquor during the start of the wash cycle is generally high, typically above 7, and most commonly at least 9. Indeed, it is often in the range of 10.5 to 12.5, and is sometimes even higher. However, in some embodiments of the present invention, the desired end pH is less than or equal to 6. Due to the different natures of the additives commonly included in the wash and/or rinse cycle and the removal of the majority of the wash liquor, the pH of the rinse cycle is generally lower than that of the wash cycle, but it is not usually lower than 7. Although rinse cycles with pHs below pH 7 have been used, this is not common practice. Automatic washing machine processes have special requirements in that it is usual to include a complex detergent composition in the wash cycle and it is also common to include a variety of fabric types in a single wash load.
- Laundry wash compositions need to be technically and economically attractive, as well as acceptable to the consumer.
- removal of greasy stains and/or bleachable stains represents a continuing challenge to formulators of laundry detergents.
- the types of components in laundry washing compositions that effectively improve performance tend to be some of the most expensive components (e.g., bleach).
- the present invention provides compositions and methods to improve the performance of laundry detergents in a cost-effective manner.
- the present invention provides compositions and methods suitable for the effective cleaning of dingy items.
- a problem which occurs with automatic washing machine processing involves the gradual deposition of residues on fabrics over a number of washes.
- body soils and environmental soils deposited on fabrics that further build the residual soils.
- These residues often lead to the dulling of dark-colored fabrics and/or imparting a "dingy" appearance in white and/or other light-colored fabrics.
- This deposition of residues also makes removal of stains from fabric surfaces more difficult.
- the present invention finds use in treating dingy fabrics and cleaning them more effectively than current compositions.
- compositions are needed that can effectively work under a wide variety of pH conditions to clean soiled fabric.
- the perhydrolase enzyme of the present invention used in some embodiments of the present invention, finds use in the generation of peracid bleach and pH-lowering acids from ester substrates. In some embodiments, these ester substrates are present in the soil, while in other embodiments, they are added to the composition and/or wash load. In particularly preferred embodiments, surface active esters adsorb to the fabric and stain surface, in order to provide targeted bleaching.
- enzymes such as those provided by the present invention that have great affinity for the stain and/or fabric surfaces facilitate surface-localized bleach and/or acid formation.
- Formulae that have moderate alkalinity allow for greater activity and solubility of specific components (e.g., peracids), with pKas of around 8.2 and surfactants.
- Hydrolase cleavage of esters generates acid, which reduces the pH, solubilizing fatty residues and improving the performance of laundry components with optimal activities at acidic pHs.
- perhydrolase, surfactant esters, triacetin, peroxide, and a minimal surfactant base find use in cleaning soiled articles.
- the soils primarily comprise body soils.
- the soiled fabric is titrated such that an appropriate buffering system is provided, in order to provide an alkaline pH, yet with enough capacity to allow for a pH drop due to enzymatic acid production.
- performance tests were conducted in miniwashers under North American median wash conditions.
- the enzymatic bleaching and dynamic pH formula provided by the present invention performed better than commercial liquid detergent on articles containing body soil.
- the addition of the enzyme is delayed by 5 minutes (i.e., hydrolase was added after 5 minutes of a 12 minute wash cycle), while the substrate and perhydrolase were added to the wash load at the start of the wash cycle.
- the present invention finds use in the enzymatic generation of peracids from ester substrates and hydrogen peroxide.
- the substrates are selected from one or more of the following: formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, nonanoic acid, decanoic acid, dodecanoic acid, myristic acid, palmitic acid, stearic acid, and oleic acid.
- the present invention provides means for effective cleaning, bleaching, and disinfecting over broad pH and temperature ranges.
- the pH range utilized in this generation is 4- 12.
- the temperature range utilized is between 5° and 90°C.
- the present invention provides advantages over the presently used systems (See e.g., EP Appln. 87- 304933.9) in that bleaching is possible at the optimum pH of peracid oxidation, as well as providing bleaching at neutral pH, acidic pHs, and at low temperatures. While the present invention is described herein most fully in regard to laundry and fabric care, it is not intended that the present invention be limited to these applications. Indeed, the present invention finds use in various settings, particularly those in which bleaching by peracids and/or hydrogen peroxide are desired under dynamic pH conditions, including but not limited to laundry, fabric treatment, personal care applications, disinfection and cleaning of hard surfaces.
- bleaching compounds have been used as bleaching compounds, particularly in laundry detergents. This compound decomposes rapidly in aqueous solution to yield hydrogen peroxide (H 2 O 2 ), which is the active bleaching species.
- H 2 O 2 hydrogen peroxide
- bleaching activators have been incorporated into laundry detergents that contain sodium perborate. Indeed, most laundry detergents contain bleaching activators. These activators are compounds with O- or N-bounded acetyl groups that are able to react with the strongly nucleophilic hydroperoxy anion to yield peroxyacetic acid.
- Hydrogen peroxide is a particularly effective bleach at high temperatures (e.g. , >40°C) and pH (>10), conditions that are typically used in washing fabrics in some settings.
- high temperatures e.g. , >40°C
- pH >10
- detergent formulations typically include bleach boosters, such as TAED (N,N,N'N'-tetraacetylethylenediamine), NOBS (nonanoyloxybenzene sulfonate), etc.
- TAED N,N,N'N'-tetraacetylethylenediamine
- NOBS nonanoyloxybenzene sulfonate
- the TAED reaction is only approximately 50% efficient, as only two out of the four acetyl groups in TAED are converted to peracids. Additionally, conversion of TAED into peracetic acid by hydrogen peroxide is efficient only at alkaline pHs and high temperatures. Thus, the TAED reaction is not optimized for use in all bleaching applications (e.g., those involving neutral or acidic pHs, and cold water).
- the present invention provides means to overcome the disadvantages of TAED use. For example, the present invention finds use in cold water applications, as well as those involving neutral or acidic pH levels. Furthermore, the present invention provides means for peracid generation from hydrogen peroxide, with a high perhydrolysis to hydrolysis ratio.
- the perhydrolase and/or hydrolase enzymes of the present invention are active on various acyl donor substrates, as well as being active at low substrate concentrations, and provide means for efficient perhydrolysis due to the high peracid:acid ratio. Indeed, it has been recognized that higher perhydrolysis to hydrolysis ratios are preferred for bleaching applications (See e.g., U.S. Patent No. 5,352,594, 5,108,457, 5,030,240, 3974,082, and 5,296,616, all of which are herein incorporated by reference). In some preferred embodiments, the perhydrolase enzymes of the present invention provide perhydrolysis to hydrolysis ratios that are greater than 1.
- the perhydrolase enzymes provide a perhydrolysis to hydrolysis ratio greater than 1 and are find use in bleaching.
- it has been shown to be active in commonly used detergent formulations (e.g., Ariel Futur, WOB, etc.).
- the present invention provides many advantages in various cleaning settings.
- Examples of chemical sources are the percarbonates and perborates mentioned above, while an example of an electrochemical source is a fuel cell fed oxygen and hydrogen gas, and an enzymatic example includes production OfH 2 O 2 from the reaction of glucose with glucose oxidase.
- the following equation provides an example of a coupled system that finds use with the present invention.
- This system generates acid(s) that result in a lowering of the pH of the system. It is not intended that the present invention be limited to any specific enzyme, as any enzyme that generates H 2 O 2 and acid with a suitable substrate finds use in the methods of the present invention.
- any enzyme that generates H 2 O 2 and acid with a suitable substrate finds use in the methods of the present invention.
- lactate oxidases from Lactobacillus species which are known to create H 2 O 2 from lactic acid and oxygen find use with the present invention.
- one advantage of the methods of the present invention is that the generation of acid (e.g., gluconic acid in the above example) reduces the pH of a basic solution to the pH range in which the peracid is most effective in bleaching (i.e., at or below the pKa).
- enzymes e.g., carbohydrate oxidase, alcohol oxidase, ethylene glycol oxidase, glycerol oxidase, amino acid oxidase, etc.
- ester substrates in combination with the perhydrolase enzymes of the present invention to generate peracids.
- Enzymes that generate acid from substrates without the generation of hydrogen peroxide also find use in the present invention. Examples of such enzymes include, but are not limited to esterases, lipases, phospholipases, cutinases, proteases.
- the ester substrates are selected from one or more of the following acids: formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, nonanoic acid, decanoic acid, dodecanoic acid, myristic acid, palmitic acid, stearic acid, and oleic acid.
- the present invention provides definite advantages over the currently used methods and compositions for detergent formulation and use, as well as various other applications.
- EP 0 280 232 describes the use of a C. oxydans enzyme in a reaction between a diol and an ester of acetic acid to produce monoacetate. Additional references describe the use of a C. oxydans enzyme to make chiral hydroxycarboxylic acid from a prochiral diol. Additional details regarding the activity of the C. oxydans transacylase, as well as the culture of C. oxydans, preparation and purification of the enzyme are provided by U.S. Patent No. 5,240,835.
- the perhydrolase of the present invention is active over a wide pH and temperature range and accepts a wide range of substrates for acyl transfer. Acceptors include water (hydrolysis), hydrogen peroxide (perhydrolysis) and alcohols (classical acyl transfer).
- enzyme is incubated in a buffer of choice at a specified temperature with a substrate ester in the presence of hydrogen peroxide.
- Typical substrates used to measure perhydrolysis include esters such as ethyl acetate, triacetin, tributyrin, ethoxylated neodol acetate esters, and others.
- the wild type enzyme hydrolyzes nitrophenylesters of short chain acids. The latter are convenient substrates to measure enzyme concentration. Peracid and acetic acid can be measured by the assays described herein. Nitrophenylester hydrolysis is also described.
- any perhydrolase obtained from any source which converts the ester into mostly peracids in the presence of hydrogen peroxide finds use in the present invention.
- esters comprising aliphatic and/or aromatic carboxylic acids and alcohols are utilized with the perhydrolase and/or hydrolase enzymes of the present invention.
- the substrate esters are selected from one or more of the following acid esters: formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, capryiic acid, nonanoic acid, decanoic acid, dodecanoic acid, myristic acid, palmitic acid, stearic acid, and oleic acid.
- triacetin, tributyrin, neodol esters, and/or ethoxylated neodol esters serve as acyl donors for peracid/acid formation.
- esters comprising aliphatic and/or aromatic carboxylic acids and alcohols are utilized with the perhydrolase and/or hydrolase enzymes in the detergent formulations of the present invention.
- the substrates are selected from one or more of the following acid esters: formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, capryiic acid, nonanoic acid, decanoic acid, dodecanoic acid, myristic acid, palmitic acid, stearic acid, and oleic acid.
- detergents comprising at least one perhydrolase and/or hydrolase, at least one hydrogen peroxide source, and at least one acid ester are provided.
- hydrolases find use in the present invention, including but not limited to carboxylate ester hydrolase, thioester hydrolase, phosphate monoester hydrolase, and phosphate diester hydrolase which act on ester bonds; a thioether hydrolase which acts on ether bonds; and ⁇ -amino-acyl-peptide hydrolase, peptidyl- amino acid hydrolase, acyl-amino acid hydrolase, dipeptide hydrolase, and peptidyl-peptide hydrolase which act on peptide bonds.
- Such hydrolase(s) find use alone or in combination with perhydrolase. Preferable among them are carboxylate ester hydrolase, and peptidyl-peptide hydrolase.
- Suitable hydrolases include: (1) proteases belonging to the peptidyl-peptide hydrolase class ⁇ e.g., pepsin, pepsin B, rennin, trypsin, chymotrypsin A, chymotrypsin B, elastase, enterokinase, cathepsin C, papain, chymopapain, ficin, thrombin, fibrinolysin, renin, subtilisin, aspergillopeptidase A, collagenase, clostridiopeptidase B, kallikrein, gastrisin, cathepsin D, bromelin, keratinase, chymotrypsin C, pepsin C, aspergillopeptidase B, urokinase, carboxypeptidase A and B, and aminopeptidase); (2) carboxylate ester hydrolase including carboxyl esterase, lipase
- lipases as well as esterases that exhibit high perhydrolysis to hydrolysis ratios, as well as protein engineered esterases, cutinases, and lipases, using the primary, secondary, tertiary, and/or quaternary structural features of the perhydrolases of the present invention.
- the hydrolase is incorporated into the detergent composition as much as required according to the purpose. It should preferably be incorporated in an amount of 0.00001 to 5 weight percent, and more preferably 0.02 to 3 weight percent,.
- This enzyme should be used in the form of granules made of crude enzyme alone or in combination with other enzymes and/or components in the detergent composition. Granules of crude enzyme are used in such an amount that the purified enzyme is 0.001 to 50 weight percent in the granules. The granules are used in an amount of 0.002 to 20 and preferably 0.1 to 10 weight percent.
- the granules are formulated so as to contain an enzyme protecting agent and a dissolution retardant material (i.e., material that regulates the dissolution of granules during use).
- a dissolution retardant material i.e., material that regulates the dissolution of granules during use.
- the perhydrolase of the present invention is between about 0.01 ppm and 100 ppm in the wash liquor, hi some preferred embodiments, the perhydrolase is present at a concentration of between about 0.1 and 10 ppm.
- the detergent composition of the present invention comprise a carbohydrate oxidase, i.e. an enzyme which catalyzes the oxidation of carbohydrate substrates such as a carbohydrate monomer, di-mer, tri-mer, or oligomer and reduces molecular oxygen to generate hydrogen peroxide.
- a carbohydrate oxidase i.e. an enzyme which catalyzes the oxidation of carbohydrate substrates such as a carbohydrate monomer, di-mer, tri-mer, or oligomer and reduces molecular oxygen to generate hydrogen peroxide.
- Suitable carbohydrate oxidases include carbohydrate oxidases selected from the group consisting of aldose oxidase (IUPAC classification ECl .1.3.9), galactose oxidase (IUPAC classification EC 1.1.3.9), cellobiose oxidase (IUPAC classification EC 1.1.3.25), pyranose oxidase (IUPAC classification ECl.1.3.10), sorbose oxidase (IUPAC classification EC 1.1.3.11) and/or hexose oxidase (IUPAC classification EC 1.1.3.5), glucose oxidase (IUPAC classification ECl .1.3.4) and mixtures thereof.
- aldose oxidase IUPAC classification ECl .1.3.9
- galactose oxidase IUPAC classification EC 1.1.3.9
- cellobiose oxidase IUPAC classification EC 1.1.3.25
- pyranose oxidase IU
- any suitable oxidase i.e., that follows the equation Enzyme + substrate -> acid and H 2 O 2
- any suitable oxidase find use in the present invention.
- the skilled artisan who is in possession of enzymes have classified as EC 1.1.3._, EC 1.2.3._, EC 1.4.3.__, and EC 1.5.3._will understand that similar classes of enzymes, based on the recommendations of the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (IUBMB), are useful in the present invention.
- preferred carbohydrate oxidases include aldose oxidase and/or galactose oxidase, more preferably is the aldose oxidase because of its broadest substrate specificity.
- Aldose oxidase is active on all mono-, di-, tri- and oligo- carbohydrates such as D- arabinose, L-arabinose, D-cellobiose, 2-deoxy-D-galactose, 2-deoxy-D-ribose, D-fructose, L- fucose, D-galactose, D-glucose, D-glycero-D-gulo-heptose, D-lactose, D-lyxose, L-lyxose, D- maltose, D-mannose, melezitose, L-melibiose, palatinose, D-raffinose, L-rhamnose, D-ribose, L- sorb
- a preferred carbohydrate oxidase is the aldose oxidase described in WO99/31990, being a polypeptide produced by Microdochium nivale CBS 100236 or having the amino acid sequence therein described in SEQ ID NO:2 or an analogue thereof
- oxidases that have significantly broader substrate specificity and therefore are capable of removing carbohydrates more efficiently and a broader spectrum of carbohydrates find use in the present invention.
- galactose oxidase acts on D- galactose, lactose, melibiose, raffinose and stachyose
- cellobiose oxidase acts on cellobiase, and also on cellodextrins, lactose, and D-mannose
- pyranose oxidase acts on D-glucose, and also on D-xylose, L-sorbose, and D-glucose-1.
- sorbose oxidase acts on L-sorbose, and also on D-glucose, D-galactose and D-xylose; and hexose oxidase acts on D-glucose, and also D- galactose, D-mannose, malton, lactose, and cellobiose.
- Suitable hexose oxidases include those described in WO96/39851 (See e.g., Examples 1- 6).
- Suitable pyranose oxidase include those described in WO97/22257 (See e.g., page 1, line 28 to page 2, Iinel9; page 4, line 13 to page 5 line 14; and page 10, line 35 to page 11, Iine24).
- the cleaning compositions of the present invention comprise about 0.0001% to about 10 %, preferably from about 0.001% to about 0.2%, more preferably from about 0.005% to about 0.1%, pure carbohydrate oxidase enzyme by weight of the total composition.
- Additional enzymes that find use in the present invention include galactose oxidase (Novozym.es AJS), cellobiose oxidase (Fermco Laboratories, Inc.), galactose oxidase (Sigma), pyranose oxidase (Takara Shuzo Co.), sorbose oxidase (ICN Pharmaceuticals, Inc.), and glucose oxidase (Genencor International, Inc.).
- substrates including compounds such as sugar, glucose and/or galactose are added to the composition, in order to further enhance the enzymatic bleaching performance.
- adjuncts find use in the cleaning formulations of the present invention. Although it is not intended that the cleaning formulations of the present invention be so limited, various components are described in greater detail below. Indeed, while such components are not essential for the purposes of the present invention, the non-limiting list of adjuncts illustrated hereinafter are suitable for use in the instant cleaning compositions and may be desirably incorporated in certain embodiments of the invention, for example to assist or enhance cleaning performance, for treatment of the substrate to be cleaned, or to modify the aesthetics of the cleaning composition as is the case with perfumes, colorants, dyes or the like. It is understood that such adjuncts are in addition to the enzymes of the present invention, hydrogen peroxide and/or hydrogen peroxide source and material comprising an ester moiety.
- adjunct materials include, but are not limited to, surfactants, builders, chelating agents, dye transfer inhibiting agents, deposition aids, dispersants, additional enzymes, and enzyme stabilizers, catalytic materials, bleach activators, bleach boosters, preformed peracids, polymeric dispersing agents, clay soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, perfumes, structure elasticizing agents, fabric softeners, carriers, hydrotropes, processing aids and/or pigments.
- suitable examples of such other adjuncts and levels of use are found in U.S. Patent Nos. 5,576,282, 6,306,812, and 6,326,348, herein incorporated by reference.
- the aforementioned adjunct ingredients may constitute the balance of the cleaning compositions of the present invention.
- the cleaning compositions provided by the present invention comprise at least one surfactant and/or surfactant system wherein the surfactant is preferably selected from nonionic surfactants, anionic surfactants, cationic surfactants, ampholytic surfactants, zwitterionic surfactants, serni-polar nonionic surfactants, and mixtures thereof.
- the surfactant is typically present at a level of from about 0.1% to about 60%, from about 1% to about 50% or even from about 5% to about 40% by weight of the subject cleaning composition.
- Cationic Surfactants and Long-Chain Fatty Acid Salts include saturated or fatty acid salts, alkyl or alkenyl ether carboxylic acid salts, a-sulfofatty acid salts or esters, amino acid-type surfactants, phosphate ester surfactants, quaternary ammonium salts including those having 3 to 4 alkyl substituents and up to 1 phenyl substituted alkyl substituents find use.
- Suitable cationic surfactants and long-chain fatty acid salts include those disclosed in British Patent Application No. 2 094 826 A, the disclosure of which is incorporated herein by reference.
- the compositions comprise from about 1 to about 20 weight percent of such cationic surfactants and long-chain fatty acid salts.
- compositions comprise from about 0 to about 10 weight percent of one or more builder components selected from the group consisting of alkali metal salts and alkanolamine salts of the following compounds: phosphates, phosphonates, phosphonocarboxylates, salts of amino acids, aminopolyacetates high molecular electrolytes, non-dissociating polymers, salts of dicarboxylic acids, and aluminosiiicate salts.
- suitable divalent sequestering agents are disclosed in British Patent Application No. 2 094 826 A, the disclosure of which is incorporated herein by reference.
- compositions of the present invention contain from about 0 to about 10 weight percent, one or more alkali metal salts of the following compounds as the alkalis or inorganic electrolytes: silicates, carbonates and sulfates as well as organic alkalis such as triethanolamine, diethanolamine, monoethanolamine and triisopropanolamine.
- the cleaning compositions of the present invention comprise one or more detergent builders and/or builder systems. When a builder is used, the subject cleaning composition typically comprises relatively low levels (e.g., from about 0% to about 10% builder by weight of the subject cleaning composition).
- builders include, but are not limited to, the alkali metal, ammonium and alkanolammonium salts of polyphosphates, alkali metal silicates, alkaline earth and alkali metal carbonates, aluminosiiicate builders polycarboxylate compounds, ether hydroxypolycarboxylates, copolymers of maleic anhydride with ethylene or vinyl methyl ether,
- I 5 5-trihydroxy benzene-2, 4, 6-trisulphonic acid, and carboxymethyloxysuccinic acid
- the various alkali metal, ammonium and substituted ammonium salts of polyacetic acids such as ethylenediamine tetraacetic acid and nitrilotriacetic acid
- polycarboxylates such as mellitic acid, succinic acid, citric acid, oxydisuccinic acid, polymaleic acid, benzene 1,3,5- tricarboxylic acid, carboxymethyloxysuccinic acid, and soluble salts thereof.
- the cleaning compositions provided by the present invention contain at least one chelating agent.
- Suitable chelating agents include copper, iron and/or manganese chelating agents and mixtures thereof.
- the cleaning compositions comprise from about 0.1% to about 15%, or from about 0.5% to about 5%, of the at least one chelating agent, by weight of the subject cleaning composition.
- the cleaning compositions provided by the present invention contain a deposition aid.
- Suitable deposition aids include, polyethylene glycol, polypropylene glycol, polycarboxylate, soil release polymers such as polytelephthalic acid, clays such as kaolinite, montmorillonite, atapulgite, illite, bentonite, halloysite, and mixtures thereof.
- the compositions contain from about 0.1 to about 5 weight percent of one or more of the following compounds as anti-redeposition agents: polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone and carboxymethylcellulose.
- polyethylene glycol polyvinyl alcohol
- polyvinylpyrrolidone polyvinylpyrrolidone
- carboxymethylcellulose a combination of carboxymethyl-cellulose and/or polyethylene glycol are utilized with the composition of the present invention as useful dirt removing compositions.
- the cleaning compositions of the present invention include one or more dye transfer inhibiting agents.
- Suitable polymeric dye transfer inhibiting agents include, but are not limited to, polyvinylpyrrolidone polymers, polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinyloxazolidones and polyvinylimidazoles or mixtures thereof.
- dye transfer inhibiting agents are typically present at levels from about 0.0001% to about 10%, from about 0.01% to about 5%, or from about 0.1% to about 3% by weight of the cleaning composition.
- Dispersants In additional embodiments, the cleaning compositions of the present invention contain dispersants. Suitable water-soluble organic materials include homo- or co- polymeric acids or their salts, in which the polycarboxylic acid comprises at least two carboxyl radicals separated from each other by not more than two carbon atoms.
- Enzymes In still further embodiments, the cleaning compositions provided by the present invention further comprise one or more detergent enzymes which provide cleaning performance and/or fabric care benefits.
- suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, metalloprotease, cellulases, xylanases, lipases, phospholipases, esterases, cutinases, pectinases, keratinases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, mannanases, cellulases, ⁇ -glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, and amylases, or mixtures thereof.
- the combination is a cocktail of conventional applicable enzymes (e.g., protease(s), lipase(s), cutinase(s), and/or cellulase(s), used in conjunction with amylase(s)).
- conventional applicable enzymes e.g., protease(s), lipase(s), cutinase(s), and/or cellulase(s), used in conjunction with amylase(s)
- Enzyme Stabilizers - Enzymes for use in detergents can be stabilized by various techniques.
- enzymes employed herein are stabilized by the presence of water-soluble sources of calcium and/or magnesium ions in the finished compositions that provide such ions to the enzymes.
- the cleaning compositions of the present invention include at least one catalytic metal complex.
- metal- containing bleach catalyst comprising a catalyst system comprising a transition metal cation of defined bleach catalytic activity, such as copper, iron, titanium, ruthenium, tungsten, molybdenum, or manganese cations, an auxiliary metal cation having little or no bleach catalytic activity, such as zinc or aluminum cations, and a sequestrate having defined stability constants for the catalytic and auxiliary metal cations, particularly ethylenediaminetetraacetic acid, ethylenediaminetetra (methylenephosphonic acid) and water-soluble salts thereof find use in the present invention (See e.g., U.S. Pat. No. 4,430,243, hereby incorporated by reference in its entirety).
- the compositions herein are catalyzed by means of a manganese compound.
- a manganese compound Such compounds and levels of use are well known in the art and include (See e.g., the manganese-based catalysts disclosed in U.S. 5,576,282, hereby incorporated by reference in its entirety).
- Cobalt bleach catalysts also find use in the present invention. These compositions are known in the art (See e.g., U.S. 5,597,936 and U.S. 5,595,967). Such cobalt catalysts are readily prepared by known procedures (See e.g., U.S. 5,597,936, and U.S. 5,595,967).
- compositions of the present invention include at least one transition metal complex of a macropolycyclic rigid ligand ("MRL").
- MRL macropolycyclic rigid ligand
- the compositions and cleaning processes herein are adjustable, so as to provide on the order of at least one part per hundred million of the active MRL species in the aqueous washing medium, and typically preferably provide from about 0.005 ppm to about 25 ppm, more preferably from about 0.05 ppm to about 10 ppm, and most preferably from about 0.1 ppm to about 5 ppm, of the MRL in the wash liquor.
- preferred transition-metals in the instant transition-metal bleach catalyst include manganese, iron and chromium.
- preferred MRLs used herein are a special type of ultra-rigid ligand that is cross-bridged such as 5,12-diethyl- l,5,8,12-tetraazabicyclo[6.6.2] hexadecane.
- the present invention provides for the use of the perhydrolases of the present invention in combination with additional bleaching agent(s) such as sodium percarbonate, sodium perborate, sodium sulfate/hydrogen peroxide adduct and sodium chloride/hydrogen peroxide adduct and/or a photo-sensitive bleaching dye such as zinc or aluminum salt of sulfonated phthalocyanine further improves the detergent effects.
- additional bleaching agent(s) such as sodium percarbonate, sodium perborate, sodium sulfate/hydrogen peroxide adduct and sodium chloride/hydrogen peroxide adduct and/or a photo-sensitive bleaching dye such as zinc or aluminum salt of sulfonated phthalocyanine further improves the detergent effects.
- the perhydrolases of the present invention are used in combination with bleach boosters (e.g., TAED and/or NOBS).
- Bluing Agents and Fluorescent Dyes are incorporated in the composition.
- suitable bluing agents and fluorescent dyes are disclosed in British Patent Application No. 2 094 826 A, the disclosure of which is incorporated herein by reference.
- Caking Inhibitors In some embodiments of the present invention in which the composition is powdered or solid, caking inhibitors are incorporated in the composition.
- suitable caking inhibitors include p-toluenesulfonic acid salts, xylenesulfonic acid salts, acetic acid salts, sulfosuccinic acid salts, talc, finely pulverized silica, clay, calcium silicate (e.g., Micro-Cell [Johns Manville Co.]), calcium carbonate and magnesium oxide.
- Antioxidants - In some additional embodiments, at least one antioxidant is included in the compositions of the present invention.
- the antioxidants include, for example, tert-butyl-hydroxytoluene, 4,4'-butylidenebis(6-tert-butyl-3- methylphenol), 2,2'-butylidenebis(6-tert-butyl-4-methylphenol), monostyrenated cresol, distyrenated cresol, monostyrenated phenol, distyrenated phenol and l,l-bis(4-hydroxy- phenyl)cyclohexane.
- compositions of the present invention also include solubilizers, including but not limited to lower alcohols (e.g. , ethanol, benzenesulfonate salts, and lower alkylbenzenesulfonate salts such as p-toluenesulfonate salts), glycols such as propylene glycol, acetylbenzene-sulfonate salts, acetamides, pyridinedicarboxylic acid amides, benzoate salts and urea.
- solubilizers including but not limited to lower alcohols (e.g. , ethanol, benzenesulfonate salts, and lower alkylbenzenesulfonate salts such as p-toluenesulfonate salts), glycols such as propylene glycol, acetylbenzene-sulfonate salts, acetamides, pyridinedicarboxylic acid amides, benzoate
- the detergent compositions of the present invention are used in a broad pH range of from acidic to alkaline pH. In some preferred embodiments, the detergent composition of the present invention is used in mildly acidic, neutral or alkaline detergent wash media having a pH of from above about 4 to no more than about 11.
- perfumes In addition to the ingredients described above, perfumes, buffers, preservatives, dyes, and the like, also find use with the present invention. These components are provided in concentrations and forms known to those in the art.
- the powdered detergent bases of the present invention are prepared by any known preparation methods (e.g., spray-drying methods and granulation methods).
- detergent bases obtained using the spray-drying method and/or spray-drying granulation method(s) are used.
- the detergent base obtained by the spray-drying method is not restricted with respect to preparation conditions.
- the spray-drying method produces hollow granules obtained by spraying an aqueous slurry of heat-resistant ingredients, such as surface active agents and builders, into a hot space.
- perfumes, enzymes, bleaching agents, inorganic alkaline builders are added after the spray-drying.
- various ingredients are also added after the preparation of the base.
- the base is a homogenous solution, while in other embodiments, it is an non-homogenous dispersion.
- the detergent compositions of the present invention are incubated with fabric (e.g. , soiled fabrics), in industrial and household uses at temperatures, reaction times and liquor ratios conventionally employed in these environments.
- the incubation conditions i.e., the conditions effective for treating materials with detergent compositions according to the present invention
- the appropriate conditions effective for treatment with the present detergents correspond to those using similar detergent compositions which include wild-type perhydrolase.
- detergents provided by the present invention are formulated as a pre-wash in the appropriate solution at an intermediate pH, where sufficient activity exists to provide desired improvements, such as softening, depilling, pilling prevention, surface fiber removal and/or cleaning.
- the detergent composition is a pre-soak (e.g., pre- wash or pre-treatment) composition, either as a liquid, spray, gel or paste composition
- the perhydrolase enzyme is generally employed from about 0.00001% to about 5% weight percent, based on the total weight of the pre-soak or pre-treatment composition.
- at least one surfactant is optionally employed.
- Such surfactants are generally present at a concentration of from about 0.0005 to about 1 weight percent, based on the total weight of the pre-soak.
- the remainder of the composition comprises conventional components used in the pre-soak (e.g., diluent, buffers, other enzymes (e.g., proteases), etc.) at their conventional concentrations.
- the cleaning compositions of the present invention find use in various applications, including laundry applications, hard surface cleaning, automatic dishwashing applications, as well as in cosmetic applications such as cleaning of dentures, teeth, hair, and/or skin.
- the enzymes of the present invention are ideally suited for laundry applications such as the bleaching of fabrics.
- the enzymes of the present invention find use in both granular and liquid compositions.
- the enzymes of the present invention also find use in cleaning additive products.
- Cleaning additive products including the enzymes of the present invention are ideally suited for inclusion in wash processes where additional bleaching effectiveness is desired. Such instances include, but are not limited, to low temperature solution cleaning applications.
- the additive product is, in its simplest form, one or more of the enzymes of the present invention.
- the additive(s) are packaged in dosage form suitable for addition to a cleaning process where a source of peroxygen is employed and increased bleaching effectiveness is desired.
- the single dosage form is a pill, while in other embodiments, it is a tablet, gelcap, or other single dosage unit, such as pre-measured powders or liquids.
- filler or carrier material is included, in order to increase the volume of such composition.
- suitable filler or carrier materials include, but are not limited to, various salts of sulfate, carbonate and silicate as well as talc, clay and the like.
- filler or carrier materials for liquid compositions comprise water or low molecular weight primary and secondary alcohols including polyols and diols. Examples of such alcohols include, but are not limited to, methanol, ethanol, propanol and isopropanol.
- the compositions comprise from about 5% to about 90% of such materials.
- acidic fillers find use in reducing pH.
- the cleaning additive includes at least one activated peroxygen source and/or or adjunct ingredients as described herein.
- the cleaning compositions and cleaning additives of the present invention require an effective amount of the enzymes provided by the present invention.
- the required level of enzyme is achieved by the addition of one or more species of the M. smegmatis perhydrolase, variants, homologues, and/or other enzymes or enzyme fragments having the activity of the enzymes of the present invention.
- the cleaning compositions of the present invention comprise at least 0.0001 weight percent, from about 0.0001 to about 1, from about 0.001 to about 0.5, or even from about 0.01 to about 0.1 weight percent of at least one enzyme of the present invention.
- the cleaning compositions of the present invention comprise a material selected from the group consisting of a peroxygen source, hydrogen peroxide and mixtures thereof, the peroxygen source being selected from the group consisting of:
- Suitable per-salts include those selected from the group consisting of alkalimetal perborate, alkalimetal percarbonate, alkalimetal perphosphates, alkalimetal persulphates and mixtures thereof.
- the carbohydrate(s) is/are selected from the group consisting of mono-carbohydrates, di-carbohydrates, tri-carbohydrates, oligo-carbohydrates and mixtures thereof.
- Suitable carbohydrates include carbohydrates selected from the group consisting of D-arabinose, L-arabinose, D-cellobiose, 2-deoxy-D-galactose, 2-deoxy-D-ribose, D-fructose, L-fucose, D-galactose, D-glucose, D-glycero-D-gulo-heptose, D-lactose, D-lyxose, L-lyxose, D-maltose, D-mannose, melezitose, L-melibiose, palatinose, D-raffinose, L-rhamnose, D-ribose, L-sorbose, stachyose, sucrose, D-trehalose, D-xylose, L-xylose and mixtures thereof.
- Suitable carbohydrate oxidases include carbohydrate oxidases selected from the group consisting of aldose oxidase (IUPAC classification EC 1.1.3.9), galactose oxidase (IUPAC classification ECl .1.3.9), cellobiose oxidase (IUPAC classification ECl .1.3.25), pyranose oxidase (IUPAC classification ECl.1.3.10), sorbose oxidase (IUPAC classification ECl.1.3.11) and/or hexose oxidase (IUPAC classification ECl.1.3.5), Glucose oxidase (IUPAC classification EC 1.1.3.4) and mixtures thereof.
- aldose oxidase IUPAC classification EC 1.1.3.9
- galactose oxidase IUPAC classification ECl .1.3.9
- cellobiose oxidase IUPAC classification ECl .1.3.25
- the cleaning compositions of the present invention also include from about 0.01 to about 99.9, from about 0.01 to about 50, from about 0.1 to 20, or even from about 1 to about 15 weight percent a molecule comprising an ester moiety.
- Suitable molecules comprising an ester moiety may have the formula:
- R 1 is a moiety selected from the group consisting of H or a substituted or unsubstituted alkyl, heteroalkyl, alkenyl, alkynyl, aryl, alkylaryl, alkylheteroaryl, and heteroaryl; in one aspect of the present invention, R 1 may comprise from 1 to 50,000 carbon atoms, from 1 to 10,000 carbon atoms, or even from 2 to 100 carbon atoms; each R 2 is an alkoxylate moiety, in one aspect of the present invention, each R 2 is independently an ethoxylate, propoxylate or butoxylate moiety;
- R 3 is an ester-forming moiety, with some embodiments having the formula:
- R 4 is substituted or unsubstituted alkyl, alkenyl, alkynyl, moiety comprising from
- x is 1 when R 1 is H; when R 1 is not H, x is an integer that is equal to or less than the number of carbons in R 1 p is an integer that is equal to or less than x m is an integer from 0 to 50, an integer from 0 to 18, or an integer from 0 to 12, and n is at least 1.
- the molecule comprising an ester moiety is an alkyl ethoxylate or propoxylate having the formula RO x [(R 2 ) m (R 3 ) ⁇ ] p wherein:
- R 1 is an C2-C 32 substituted or unsubstituted alkyl or heteroalkyl moiety; each R 2 is independently an ethoxylate or propoxylate moiety;
- R 3 is an ester-forming moiety having the formula:
- R 4 is a substituted or unsubstituted alkyl, alkenyl, or alkynyl moiety comprising from 1 to 22 carbon atoms, a substituted or unsubstituted aryl, alkylaryl, alkylheteroaryl, or heteroaryl moiety comprising from 4 to 22 carbon atoms or R 4 is a substituted or unsubstituted C 1 -C 2 2 alkyl moiety or R 4 is a substituted or unsubstituted C 1 -C12 alkyl moiety; x is an integer that is equal to or less than the number of carbons in R 1 p is an integer that is equal to or less than x m is an integer from 1 to 12, and n is at least 1.
- the molecule comprising the ester moiety has the formula:
- R 1 is H or a moiety that comprises a primary, secondary, tertiary or quaternary amine moiety, the R 1 moiety that comprises an amine moiety being selected from the group consisting of a substituted or unsubstituted alkyl, heteroalkyl, alkenyl, alkynyl, aryl, alkylaryl, alkylheteroaryl, and heteroaryl; in one aspect of Applicants' invention R 1 comprises from 1 to 50,000 carbon atoms, from 1 to 10,000 carbon atoms, or even from 2 to 100 carbon atoms; each R 2 is an alkoxylate moiety, in one aspect of the present invention each R 2 is independently an ethoxylate, propoxylate or butoxylate moiety; R 3 is an ester-forming moiety having the formula:
- the molecule comprising an ester moiety has a weight average molecular weight of less than about 600,000 Daltons, less than about 300,000 Daltons, less than about 100,000 Daltons or even less than about 60,000 Daltons.
- Suitable molecules that comprise an ester moiety include polycarbohydrates that comprise an ester moiety.
- the cleaning compositions provided herein are typically formulated such that, during use in aqueous cleaning operations, the wash water has a pH of from about 5.0 to about 11.5, or even from about 7.5 to about 10.5.
- Liquid product formulations are typically formulated to have apH from about 3.0 and about 9.0.
- Granular laundry products are typically formulated to have a pH from about 9 to about 11. Techniques for controlling pH at recommended usage levels include the use of buffers, alkalis, acids, etc., and are well known to those skilled in the art.
- the enzyme(s) of the present invention when the enzyme(s) of the present invention is/are employed in a granular composition or liquid, it is desirable for the enzyme(s) to be in the form of an encapsulated particle to protect such enzyme from other components of the granular or liquid composition during storage.
- encapsulation provides a means of controlling the availability of the enzyme(s) during the cleaning process.
- encapsulation enhances performance of the enzyme(s).
- the enzyme(s) are encapsulated with any suitable encapsulating material known in the art.
- the encapsulating material typically encapsulates at least part of the enzyme(s). Typically, the encapsulating material is water-soluble and/or water-dispersible. In some embodiments, the encapsulating material has a glass transition temperature (Tg) of O 0 C or higher (See e.g., WO 97/11151, especially from page 6, line 25, to page 7, line 2, for more detail on glass transition temperatures ).
- Tg glass transition temperature
- the encapsulating material is selected from the group consisting of carbohydrates, natural gums, synthetic gums, chitin, chitosan, cellulose, cellulose derivatives, silicates, phosphates, borates, polyvinyl alcohol, polyethylene glycol, paraffin waxes, and combinations thereof.
- the encapsulating material is a carbohydrate, it is typically selected from the group consisting of monosaccharides, oligosaccharides, polysaccharides, and combinations thereof.
- the encapsulating material is a starch (See e.g., EP 0 922 499, US Pat. No. 4,977,252, US Pat. No. 5,354,559, and US Pat. No. 5,935,826, for descriptions of some suitable starches).
- the encapsulating material is a microsphere made from plastic material(s), including but not limited to thermoplastics, acrylonitriles, methacrylonitrile, polyacrylonitrile, polymethacrylonitrile and mixtures thereof.
- plastic material(s) including but not limited to thermoplastics, acrylonitriles, methacrylonitrile, polyacrylonitrile, polymethacrylonitrile and mixtures thereof.
- Suitable commercially available microspheres include EXPANCEL® (Expancel, Stockviksverken, Sweden), PM 6545, PM 6550, PM 7220, PM 7228, EXTENDOSPHERES®, LUXSIL®, Q-CEL® and SPHERICEL® (PQ Corp., Valley Forge, PA).
- the cleaning compositions of the present invention are formulated into any suitable form and prepared by any process chosen by the formulator (See e.g., U.S. Pat Nos. 5,879,584; 5,691,297; 5,574,005; 5,569,645; 5,565,422; 5,516,448; 5,489,392; and 5,486,303; all of which are incorporated herein by reference, for non-limiting examples).
- Method of Use See e.g., U.S. Pat Nos. 5,879,584; 5,691,297; 5,574,005; 5,569,645; 5,565,422; 5,516,448; 5,489,392; and 5,486,303; all of which are incorporated herein by reference, for non-limiting examples).
- the cleaning compositions disclosed herein of find use in cleaning fabrics and/or surfaces. Typically at least a portion of the site to be cleaned is contacted with an embodiment of the present cleaning composition, in neat form or diluted in wash liquor, and then the site is optionally washed and/or rinsed. For purposes of the present invention, washing includes but is not limited to, scrubbing, and mechanical agitation.
- the fabric comprises any suitable fabric capable of being laundered in normal consumer use conditions.
- the cleaning compositions of the present invention are typically employed at concentrations of from about 500 ppm to about 15,000 ppm in solution. When the wash solvent is water, the water temperature typically ranges from about 5 0 C to about 90 °C. In embodiments in which fabric is cleaned, the water to fabric mass ratio is typically from about 1 :1 to about 30:1.
- smegmatis smegmatis
- MS mass spectroscopy
- BRAIN BRAIN Biotechnology Research and Information Network, AG, Zwingenberg, Germany
- TIGR The Institute for Genomic Research, Rockville, MD
- AATCC American Association of Textile and Coloring Chemists
- WFK wfk Testgewebe GmbH, Bruggen-Bracht, Germany
- Amersham Amersham Life Science, Inc.
- ICN ICN Pharmaceuticals, Inc., Costa Mesa, CA); Pierce (Pierce Biotechnology, Rockford, IL); Amicon (Amicon, Inc., Beverly, MA); ATCC (American Type Culture Collection, Manassas, VA); Amersham (Amersham Biosciences, Inc., Piscataway, NJ); Becton Dickinson (Becton Dickinson Labware, Lincoln Park, NJ); BioRad (BioRad, Richmond, CA); Clontech (CLONTECH Laboratories, Palo Alto, CA); Difco (Difco Laboratories, Detroit, MI); GIBCO BRL or Gibco BRL (Life Technologies, Inc., Gaithersburg, MD); Novagen (Novagen, Inc., Madison, WI); Qiagen (Qiagen, Inc., Valencia, CA); Invitrogen (Invitrogen Corp., Carlsbad, CA); Genaissance (Genaissance Pharmaceuticals, Inc., New Haven, CT);
- TAS Sodium tallow alkyl sulfate
- CxyEz C j x - C ⁇ y predominantly linear primary alcohol condensed with an average of z moles of ethylene oxide
- CxyAEzS Cj x - Cjy sodium alkyl sulfate condensed with an average of z moles of ethylene oxide (added molecule names are in the
- Nonionic Mixed ethoxylated/propoxylated fatty alcohol (e.g. ,Plurafac
- Polycarboxylate Copolymer comprising mixture of carboxylated monomers such as acrylate, maleate and methyacrylate with a MW ranging between 2,000-80,000 (e.g., SokolanTM a copolymer of acrylic acid, MW4,500; BASF)
- carboxylated monomers such as acrylate, maleate and methyacrylate with a MW ranging between 2,000-80,000 (e.g., SokolanTM a copolymer of acrylic acid, MW4,500; BASF)
- TAED Tetraacetyl ethylene diamine NOBS
- DTPA Diethylene triamine pentaacetic acid
- HEDP 1,1-hydroxyethane diphosphonic acid
- DETPMP Diethyltriamine penta (methylene) phosphonate (e.g., Dequest
- Diamine Dimethyl aminopropyl amine; 1,6-hezane diamine; 1,3- propane diamine; 2-methyl-l,5-pentane diamine; 1,3- pentanediamine; 1 -methyl-diaminopropane
- Paraffin Paraffin oil e.g., Winog 70TM; Wintershall
- Paraffin Sulfonate A Paraffin oil or wax in which some of the hydrogen atoms have been replaced by sulfonate groups
- Aldose oxidase Oxidase enzyme e.g., aldose oxidase; Novozymes
- Galactose oxidase Galactose oxidase e.g., from Sigma
- Protease Proteolytic enzymes e.g., SAVINASE, ALCALASE®, EVERLASE®; Novozymes; and "Protease A” described in US RE 34,606 in Figures IA 5 IB 5 and 7, and at column 11, lines 11-37; "Protease B” described in US5,955,340 and US5,700 5 676 in Figures IA 3 IB and 5, as well as Table 1 ; and "Protease C” described in US6,312 5 936 and US 6,482,628 in Figures 1-3 [SEQ ID 3], and at column 25, line 12, "Protease D” being the variant
- Amylase Amylo lytic enzymes e.g., PURAFECT® Ox Am; described in WO 94/18314, and WO 96/05295 to Genencor; and
- Lipase Lipolytic enzymes e.g., LIPOLASE®, LBPOLASE® Ultra;
- Novozymes; and LipomaxTM; Gist-Brocades) Cellulase Cellulytic enzymes e.g., CAREZYME®, CELLUZYME®,
- PVNO Polyvinylpyridine-N-Oxide with an average molecular weight of 50,000
- PVPVI Copolymer of vinylimidazole and vinylpyrrolidone with an average molecular weight of 20,000
- Brightener 1 Disodium 4,4'-bis(2-sulphostyryl)biphenyl Silicone antifoam Polydimethylsiloxane foam controller with siloxane- oxyalkylene copolymer as dispersing agent with a ratio of the foam controller to the dispersing agent of 10:1 to 100:1
- SRP 1 Anionically end capped poly esters PEG X Polyethylene glycol, of a molecular weight of "X" PVP K60 ® Vinylpyrrolidone homopolymer (average MW 160,000) Jefifamine ® ED-2001 Capped polyethylene glycol (e.g., from Huntsman) Isachem ® AS A branched alcohol alkyl sulphate (e.g., from Enichem ) MME PEG (2000) Monomethyl ether polyethylene glycol (MW 2000) (e.g., from
- TPKFA C 12 -C 14 topped whole cut fatty acids Clay A hydrated aluminumu silicate in a general formula
- AIaO 3 SiO 2 -XH 2 O e.g., kaolinite, montmorillonite, atapulgite, illite, bentonite, halloysite.
- Perhydrolase Enzyme described in US 04/040438 including wild-type (WT) and variants (e.g. S54V).
- ZPB Hexamethylenediamine E24 dimethyl quat, tetrasulfates
- a spectrophotometer was used to measure the absorbance of the products formed after the completion of the reactions.
- a reflectometer was used to measure the reflectance of the swatches. Unless otherwise indicated, protein concentrations were estimated by Coomassie Plus (Pierce), using BSA as the standard.
- Enzyme components weights provided herein are based on total active protein. All percentages and ratios were calculated by weight unless otherwise indicated. All percentages and ratios were calculated based on the total composition unless otherwise indicated.
- Stains for testing were obtained from commercial providers (i.e., Testfabrics).
- Target test stains were consumer dingy T-shirts, consumer dingy pillowcases, prepared tea stains (Testfabrics, Tea for Low Temp on Cotton, STC CFT BC-3), and prepared wine stains (Testfabrics, Cotton Soiled with Wine, STC CFT CS-3).
- Consumer dingy articles were used as ballast to complete a wash load of 0.6 pounds per 2 gallons. Consumer items were collected and prepared from soiled clothing donated by regional residents. Areas of confluent staining were identified and cut into approximately 4-inch by 4-inch swatches from the target dingy consumer test stains. These swatches were then cut in half and labeled for use in comparing two wash treatments.
- pH was measured and adjusted with IN NaOH or HCl as desired.
- FIG. 1 shows the effect of peracetic acid on cleaning of consumer dingy soils and prepared tea stains.
- the overall cleaning of all soils generally increased as the pH decreased, both with and without peracetic acid.
- the greatest added benefit of peracetic acid on cleaning was observed to occur at pHs 8 and 9, where the difference in cleaning between the conditions with and without peracetic acid was greatest.
- This pH corresponds to the pKa of peracetic acid of 8.2.
- the cleaning benefit of low pH and the peracetic acid bleaching optimum of pH 8-9 indicate that a detergent composition that covers a wide pH range provides improved cleaning performance.
- the 2 gallon small-scale top loading tubs were filled with 2 gallons of deionized water and water hardness was adjusted to 6 gpg using the water hardness solution from Example 2, A.
- Components were added to wash concentrations of 100 ppm of LAS, 20 ppm of citrate, and 200 ppm of triacetin.
- Variable amounts of PBl, and 1 ppm of perhydrolase were added at various times in order to achieve different pH profiles in the wash. Agitation was started at 75 rpm and 0.6 pounds of consumer dingy articles were then added. Agitation continued for 20 minutes and the pH was monitored throughout.
- FIG. 2 shows the various pH profiles associated with adding various amounts of perborate, various perhydrolases, and at different times.
- the desired pH profile was achieved with 75 ppm of PBl and 1 ppm of a high efficiency perhydrolase (S 54V) with a delayed addition at 5 minutes of a low efficiency perhydrolase with high hydrolysis activity (WT).
- S 54V high efficiency perhydrolase
- WT low efficiency perhydrolase with high hydrolysis activity
- the pH profile dropped slightly from 9 to 8 in the first 6 minutes, while the first enzyme was producing peracetic acid. After 6 minutes, the pH dropped drastically with the addition of the enzyme with high hydrolysis activity.
- Example 2 The method set forth in Example 2, part A for testing detergent performance in small- scale was used to test substrate and enzyme parameters generating a dynamic pH on cleaning performance. Cleaning was assessed on consumer dingy T-shirts and pillowcases, and prepared tea and wine stains. A five treatment, three replicate experiment was conducted, in which additions of a high efficiency perhydrolase (S54V) and a low efficiency high hydrolysis activity perhydrolase (WT) were added at various times throughout the wash cycle. The treatments were compared to and normalized against commercial TIDE®, heavy-duty liquid formula (HDL).
- S54V high efficiency perhydrolase
- WT low efficiency high hydrolysis activity perhydrolase
- composition in 2 Gallon Wash: lppm perhydrolase variant S54V 470ul 16100ppm perhydrolase variant S54V (16.1 mg/ml) lppm WT perhydrolase 690ul 1 lOOOppm WT perhydrolase (11 mg/ml)
- Ci 2 -Ci S E7 acetate 2271mg Ci 2 -Ci 5 -E7 acetate
- FIG. 3 shows the pH profiles generated by the various conditions.
- the addition of the perhydrolase with high hydrolysis activity (WT) was required to generate sufficient acid to lower the pH below 6.
- C. Optimization of Enzyme Parameters for Optimal Performance [169] Enzyme and substrate parameters were optimized using a statistical experimental design.
- Example 2 The method set forth in Example 2, part A for testing detergent performance in small-scale was used to test substrate and enzyme parameters on cleaning performance. Cleaning was assessed on consumer dingy T-shirts and pillowcases, and prepared tea and wine stains. Four sets of five treatment, three replicate experiments were conducted comparing various amounts of a high efficiency perhydrolase (S54V) with various amounts and delays in addition of triacetin. Treatments were compared to and normalized against commercial TIDE®, HDL formula.
- S54V high efficiency perhydrolase
- composition in 2 Gallon Wash:
- Triacetin is a water-soluble substrate, with a high molar acid to weight ratio for generating large amounts of bulk solution peracetic and acetic acid.
- surfactant esters find use in providing enhanced cleaning, as they combine surfactant properties with an ester that can be converted to peracetic acid by perhydrolase during cleaning.
- surfactant esters were tested for their effect on cleaning of dingy T-shirt and pillowcase soils as well as prepared tea and wine stains.
- the four surfactant esters comprised of varying alkyl chain lengths with varying ethylene oxide chain lengths and an acetate ester attached to the terminal primary alcohol of the last ethoxylate.
- the C 12 -C1 3 E9 acetate is composed of an alkyl chain with a distribution centering around 12 to 13 carbons, an ethoxylation distribution centering around 9 ethylene glycol units, and a terminal acetate.
- the C ⁇ -C t g E7 acetate is composed of a 12 to 15 carbon alkyl chain with 7 ethylene oxide units and an acetate.
- the C 9 -C 11 E2.5 acetate is composed of a 9 to 11 carbon alkyl chain with 2 to 3 ethylene oxide units and an acetate.
- the C 9 -C 1 1 E6 acetate is composed of a 9 to 11 carbon alkyl chain with 6 ethylene oxide units and an acetate.
- Example 2 The method described in Example 2, part A 5 for testing detergent performance in small- scale was used to test these substrates on cleaning performance using a five treatment, three replicate experimental design. Treatments were compared to and normalized against commercial TIDE®, heavy-duty liquid formula.
- composition in 2 gallon wash:
- FIG. 4 shows the pH profiles generated by the various substrates. Any differences in perhydrolysis or hydrolysis of the substrates by the enzyme, or in molar acid to weight ratios did not significantly impact pH profiles.
- the Ci 2 -C] 5 -E7 acetate did, however, provide slightly enhanced cleaning of consumer dingy T-shirts and pillowcases.
- the shorter substrates, C 9 -C 11 - E2.5 and C9-C11-E6 acetates provided enhanced cleaning on the hydrophilic soils of tea and wine, likely due to their higher molar peracid to weight ratios. Regardless, all substrates in combination with enzyme performed well in cleaning tea and wine stains.
- Example 2 Comparison of Dynamic pH Detergent Composition to Commercial Brands
- the method set forth in Example 2, part A, for testing detergent performance on a small scale was used to compare the cleaning performance of dynamic pH detergent compositions to commercial TIDE® brands. Cleaning was assessed on consumer dingy T-shirts and pillowcases, and prepared tea and wine stains.
- a five treatment, three replicate experiment was conducted comparing commercial Liquid TIDE® with Bleach Alternative, commercial TIDE® with Bleach granules, a dynamic pH composition containing the Ci 2 -Ci 5 -E7 acetate, a dynamic pH composition containing C9-C11-E2.5 acetate, and commercial TIDE® HDL formula as the benchmark.
- a protease was added to the dynamic pH detergent composition to equalize any advantage of commercial brands on protein containing soils such as consumer dingy articles.
- the low efficiency, high hydrolysis activity perhydrolase (WT) was added into the dynamic pH treatment wash cycle after a 5 minute delay to reproduce the optimal pH profile using current components.
- WT hydrolysis activity perhydrolase
- a serine protease ASP was also used.
- FIG. 5 shows the pH profiles generated by the various conditions.
- the dynamic pH composition regardless of substrate, generated a linear pH profile from pH 9 to 5.5 through the wash cycle.
- the pH profile of the commercial TIDE® formulations dropped slightly after the addition of the test stains and soiled ballast, due to their inherent buffering capacity, but the pH remained constant through the entire wash cycle.
- the liquid TIDE® formulations maintained a wash pH of 7.5, while the granular TIDE® with bleach maintained a wash pH of 10.25.
- the dynamic pH detergent compositions performed significantly better than commercial TIDE® liquid formulations in cleaning consumer dingy T-shirts and pillowcases and prepared tea and wine stains.
- the best dynamic pH composition with the C 12 -C 15 -E7 acetate substrate performed equivalent to granular TIDE® with Bleach on both consumer dingy articles and tea and wine stains.
- compositions (1) — (V) is about 9 to about 10 and is adjusted to such pH by adding sodium hydroxide.
- compositions (I)-(VI) is about 8 to about 9 and is adjusted to such pH by adding sodium hydroxide.
- compositions (I)-(V) The pH of Compositions (I)-(V) is about 9 to about 10 and is adjusted to such pH by adding sodium hydroxide.
- compositions of present invention are also prepared. These compositions are in the form of granules or tablets in some preferred embodiments.
- Zeolite A 5.0 8.0 6.0 - 5.0
- ** MCAEM is selected from the group consisting of C 9 -C11E2. 5 Acetate,
- compositions (I)-(V) are about 9 to about 10 and is adjusted to ' such pH by adding sodium hydroxide.
- compositions (I) through (VI) is from about 9.0 to about 10.0.
- the following tablet detergent compositions of the present invention are prepared by compression of a granular dishwashing detergent composition at a pressure of 13KN/cm2 using a standard 12 head rotary press.
- compositions (I) through 7(VIII) is from about 9 to about 10.
- compositions (I) through (VII) is from about 8.5 to about 9.5 and is adjusted to such pH by adding sodium hydroxide.
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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Molecular Biology (AREA)
- Detergent Compositions (AREA)
- Enzymes And Modification Thereof (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2643265A CA2643265C (en) | 2006-03-02 | 2007-02-16 | Surface active bleach and dynamic ph |
MX2008011092A MX2008011092A (en) | 2006-03-02 | 2007-02-16 | Surface active bleach and dynamic ph. |
JP2008557290A JP5486810B2 (en) | 2006-03-02 | 2007-02-16 | Surface active bleach and dynamic pH |
CN2007800123584A CN101421383B (en) | 2006-03-02 | 2007-02-16 | surface active bleach and dynamic pH |
BRPI0708504A BRPI0708504A8 (en) | 2006-03-02 | 2007-02-16 | surface active bleach and dynamic ph |
EP07751097.2A EP1991651B2 (en) | 2006-03-02 | 2007-02-16 | Surface active bleach at dynamic ph |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US77913006P | 2006-03-02 | 2006-03-02 | |
US60/779,130 | 2006-03-02 |
Publications (1)
Publication Number | Publication Date |
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WO2007106293A1 true WO2007106293A1 (en) | 2007-09-20 |
Family
ID=38293369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/004312 WO2007106293A1 (en) | 2006-03-02 | 2007-02-16 | Surface active bleach and dynamic ph |
Country Status (9)
Country | Link |
---|---|
US (2) | US20080029130A1 (en) |
EP (1) | EP1991651B2 (en) |
JP (1) | JP5486810B2 (en) |
CN (1) | CN101421383B (en) |
BR (1) | BRPI0708504A8 (en) |
CA (1) | CA2643265C (en) |
MX (1) | MX2008011092A (en) |
RU (1) | RU2431655C2 (en) |
WO (1) | WO2007106293A1 (en) |
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EP1991651B2 (en) | 2022-07-06 |
US20110021404A1 (en) | 2011-01-27 |
CN101421383B (en) | 2011-12-14 |
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EP1991651A1 (en) | 2008-11-19 |
CA2643265A1 (en) | 2007-09-20 |
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RU2008139090A (en) | 2010-04-10 |
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