EP0998549A1 - Utilisation de solutions contenant des enzymes pour nettoyer des cuves de fermentation ou de stockage - Google Patents

Utilisation de solutions contenant des enzymes pour nettoyer des cuves de fermentation ou de stockage

Info

Publication number
EP0998549A1
EP0998549A1 EP98943726A EP98943726A EP0998549A1 EP 0998549 A1 EP0998549 A1 EP 0998549A1 EP 98943726 A EP98943726 A EP 98943726A EP 98943726 A EP98943726 A EP 98943726A EP 0998549 A1 EP0998549 A1 EP 0998549A1
Authority
EP
European Patent Office
Prior art keywords
fermentation
cleaning
enzyme
cleaning solution
storage tanks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98943726A
Other languages
German (de)
English (en)
Other versions
EP0998549B1 (fr
Inventor
Marion Lengling
Harald Kluschanzoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecolab GmbH and Co OHG
Original Assignee
Henkel Ecolab GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel Ecolab GmbH and Co KG filed Critical Henkel Ecolab GmbH and Co KG
Publication of EP0998549A1 publication Critical patent/EP0998549A1/fr
Application granted granted Critical
Publication of EP0998549B1 publication Critical patent/EP0998549B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C11D3/38636—Preparations containing enzymes, e.g. protease or amylase containing enzymes other than protease, amylase, lipase, cellulase, oxidase or reductase
    • 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
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines

Definitions

  • the invention relates to the cleaning of fermentation or storage tanks in the beverage industry. It relates in particular to the cleaning of those tanks in which beverages, in particular beer, prepared and / or stored by fermentation are produced.
  • soiling and residues are particularly difficult to remove.
  • these residues can contain tannins. Containing hop resins and similar residues that are difficult to dissolve.
  • complex and unsatisfactory cleaning is carried out using classic cleaning agents.
  • the cleaning can be carried out, for example, with alkaline cleaners, based on about 1 to 3% sodium hydroxide solution, if appropriate together with additives.
  • acidic cleaners based, for example, on about 1 to 3% phosphoric acid can be used.
  • the cleaning times are in the range from about 20 to about 60 minutes, the cleaning solutions having a temperature in the range from about 5 to about 20 ° C.
  • the solution to the problem is based on the knowledge that a particularly good cleaning action against tannins, hop resins and similar stubborn soiling can be achieved by using certain enzyme-containing formulations.
  • the invention accordingly relates to the use of aqueous solutions containing enzymes for cleaning fermentation tanks or storage tanks in the beverage industry. It relates in particular to the use of such solutions for cleaning fermentation tanks or storage tanks in which beverages obtained by fermentation, for example by alcoholic fermentation, have been produced or stored. A special example of such a drink is beer.
  • the aqueous cleaning solutions preferably contain one or more enzymes selected from the following groups: laccases, peroxidases, oxireductases. Transferases. Hydrolases, isomerases, lyases, proteases and ligases.
  • laccases or peroxidases which are preferably used in combination with one another, is particularly preferred.
  • the total concentration of the enzymes in the aqueous cleaning solution is in the range from about 0.001 to about 1% by weight. At lower concentrations, the cleaning result deteriorates, while at concentrations higher than about 1% by weight, the cleaning result no longer improves significantly.
  • the concentrations of the individual enzymes are preferably in the range from about 0.002 to about 0.3% by weight. If you combine several enzymes with each other, you make them Total concentration is preferably in the range of about 0.005 to about 0.5% by weight.
  • the pH of the enzyme-containing aqueous cleaning solution is preferably in the range in which the enzymes develop their optimal effect. Depending on the type of enzyme, different pH ranges can prove to be optimal. In general, the pH should range from about 2 to about 1 1. In the preferred use of laccases and / or peroxidases, the pH is preferably adjusted to a range from about 3 to about 10.
  • the aqueous solution containing the enzyme contains no other active ingredients apart from the enzymes. Depending on the type of contamination, the enzyme effect can be improved by adding other active ingredients.
  • the enzyme effect can be improved by adding other active ingredients.
  • Nonionic, anionic or cationic surfactants in particular anionic surfactants such as, for example, alkyl sulfates or nonionic surfactants such as, for example, alkoxylates of fatty alcohols or fatty amines,
  • monomers oligomeric or polymeric phosphates, especially diphosphates.
  • Organic complexing agents such as hydroxycarboxylic acids such as lactic acid in particular. Citric acid, tartaric acid or gluconic acid, chelating aminocarboxylic acids such as, for example, ethylenediaminetetraacetic acid or nitrilotriacetic acid, phosphonic acids such as, for example, 1-hydroxyethane-1, 1 -diphosphonic acid or phosphonocarboxylic acids such as, for example, phosphonobutane tricarboxylic acid.
  • hydroxycarboxylic acids such as lactic acid in particular. Citric acid, tartaric acid or gluconic acid, chelating aminocarboxylic acids such as, for example, ethylenediaminetetraacetic acid or nitrilotriacetic acid, phosphonic acids such as, for example, 1-hydroxyethane-1, 1 -diphosphonic acid or phosphonocarboxylic acids such as, for example, phosphonobutane tricarboxylic acid.
  • the invention relates to a method for cleaning fermentation and / or storage tanks in the beverage industry, in particular tanks for beverages obtained by fermentation, by using the tanks for a period in the range between about 30 minutes and about 5 hours treated enzyme-containing aqueous solution containing the components described above. Treatment times in the range from 10 to 60 minutes are preferred.
  • the treatment can be carried out by filling the tanks with the enzyme-containing aqueous solution or by spraying the inside of the tank with the enzyme-containing aqueous solution.
  • the cleaning effect can be increased by the mechanical effect of a powerful spray jet.
  • the temperature of the enzyme-containing aqueous solution is preferably selected in the range from approximately -5 to +85 ° C., in particular in the range from approximately 20 to approximately 70 ° C.
  • the cleaning method according to the invention can also be used as a so-called “cleaning-in-place method” (CIP method).
  • CIP method cleaning-in-place method
  • the cleaning solution is stored in a stacking container and pumped from there through a line system into the containers to be cleaned and returned to the stacking container Since this means that the same cleaning solution can be used for several cleaning cycles, the use of cleaning solution is reduced.
  • the cleaning solution according to the invention can be formulated and used as a so-called thin film cleaner.
  • the flow properties (viscosity, thixotropy) of the cleaning solution are adjusted by adding suitable thickeners so that the solution is sprayed onto the walls of the containers to be treated and that it adheres to the walls as a thin film or runs slowly surfaces to be cleaned are in contact with the cleaning solution for a long time without having to fill the entire container. This means that a comparatively small volume of cleaning solution is sufficient.
  • the film of the detergent is rinsed off with water.
  • Thin-film cleaners of this type are known in the prior art, however, without the enzymes to be used according to the invention.
  • EP-B-265 979 (Akzo) thickening premixes for the production of thickened aqueous single-phase cleaning agents consist of 0.1 to 10% by weight of a surfactant.
  • a surfactant which can be, for example, a tertiary amine oxide, and consist of 0.01 to 3% by weight of an organic anionic sulfonate.
  • These thickened aqueous cleaning agents show thixotropic behavior, that is to say they have a high viscosity at low shear forces.
  • EP-A-276 501 (Akzo) are thickened, aqueous cleaning agents with thixotropic behavior which contain a primary, secondary or tertiary amine or diamine with at least one hydrocarbon radical consisting of at least 10 carbon atoms, and an organic sulfonate and a weak one Contain acid with a pK value less than 2.0.
  • Other documents dealing with thickening detergent concentrates are, for example, WO96 / 21721 (Jeyes Group PLC).
  • EP-A-0 724 013 Coldgate-Palmolive
  • US-5,078,896 (Akzo).
  • German published patent application DE 46 04 636 (Henkel KGaA) describes thickening aqueous cleaning agents for hard surfaces which contain a combination of at least one tertiary amine oxide, at least one alkyl polyglycoside and at least one water-soluble organic solvent selected from the group of mono- or polyhydric alcohols, the glycol ether and the alkanolamines.
  • This document does not disclose the use for inner surfaces of pipelines or containers.
  • WO95 / 02664 (Jeyes Group PLC) also describes cleaners which can be thickened by the addition of water and which either require ether sulfates, optionally in conjunction with further surface-active substances, or cationic surfactants, optionally together with nonionic surfactants.
  • ether sulfates optionally in conjunction with further surface-active substances
  • cationic surfactants optionally together with nonionic surfactants.
  • EP-A-0 595 590 (Page, White & Farrer) discloses a chlorine-free, low-alkaline cleaning concentrate which contains amine oxides, anionic surfactants, a hydrophobically modified polymer, a thinner and alkalis and forms a gel film on hard surfaces.
  • EP-A-0 314 232 (Unilever) describes water-thickenable detergent concentrates which contain a surfactant from the group of the amines, amine oxides and quaternary ammonium salts, a cosurfactant, ionizable compounds and water. These cleaners are also used for hard surfaces.
  • Cleaner concentrates which can be thickened with water accordingly contain surfactant components, both anionic surfactants, cationic surfactants and nonionic surfactants and possibly amphoteric surfactants being used, diluents, acidic or alkaline constituents.
  • Builders and cobuilders for example polymers and other active ingredients and auxiliaries.
  • the cleaner concentrate can contain further components, for example additional alkalis, chelate complexing agents, further anionic and / or nonionic surfactants, enzymes, preservatives, sequestering agents, oxidizing (bleaching) agents, dyes and / or perfumes.
  • additional alkalis for example additional alkalis, chelate complexing agents, further anionic and / or nonionic surfactants, enzymes, preservatives, sequestering agents, oxidizing (bleaching) agents, dyes and / or perfumes.
  • the enzyme-containing aqueous solutions described in the present invention can also be formulated as thin-film cleaners.
  • the tanks are preferably rinsed out with tap water.
  • the amount of rinsing water can be significantly reduced compared to conventional strongly acidic or strongly alkaline cleaning. This leads to a significantly reduced water consumption. Since the pH value of the enzyme-containing cleaning solution is preferably in the range permitted for waste water, the otherwise required dilution or neutralization is not necessary. The amount of waste water and waste water pollution can therefore be significantly reduced.
  • the purification process according to the invention was checked in a so-called fermentation simulation test.
  • 200 g of malt extract malt extract broth
  • the malt extract was heated to 90 ° C. and completely dissolved.
  • 1.7 g of crushed hop pellets were added, boiled for 2 hours, cooled to about 10 ° C. in an ice bath and 20 g of yeast were added. This batch was left to ferment for 5 days at room temperature.
  • the Erlenmeyer flask was completely emptied and rinsed once with tap water so that the yeast was completely removed.
  • aqueous enzyme solutions according to the invention were filled with the cleaning solutions.
  • the cleaning solutions were at room temperature and were stirred at about 50 revolutions per minute.
  • the detachment of the fermentation residues was observed.
  • a visual, comparative assessment of the percentage of contamination detachment was carried out by the enzyme-containing aqueous cleaning solutions according to the invention and by a tank cleaner used in practice.
  • the following table shows the percentage soiling detachment in% after 60 minutes.
  • Aqueous solutions were used which contained the active substances given in the table (concentration data in% by weight). Table: Cleaners and cleaning results

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Enzymes And Modification Thereof (AREA)

Abstract

L'invention concerne l'utilisation de solutions aqueuses pour nettoyer des cuves de fermentation ou de stockage dans le domaine de l'industrie des boissons, notamment pour éliminer les résidus issus des processus de fermentation. Les enzymes sont sélectionnées de préférence dans le groupe des laccases, des peroxydases, des oxyréductases, des transférases, des hydrolases, des isomérases, des lyases, des ligases, des protéases et sont présentes à raison de 0,001 à 1 % en poids dans la solution nettoyante aqueuse.
EP98943726A 1997-07-22 1998-07-13 Utilisation de solutions contenant des enzymes pour nettoyer des cuves de fermentation ou de stockage Expired - Lifetime EP0998549B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19731398A DE19731398A1 (de) 1997-07-22 1997-07-22 Verwendung enzymhaltiger Lösungen zum Reinigen von Gär- und Lagertanks
DE19731398 1997-07-22
PCT/EP1998/004331 WO1999005252A1 (fr) 1997-07-22 1998-07-13 Utilisation de solutions contenant des enzymes pour nettoyer des cuves de fermentation ou de stockage

Publications (2)

Publication Number Publication Date
EP0998549A1 true EP0998549A1 (fr) 2000-05-10
EP0998549B1 EP0998549B1 (fr) 2002-03-27

Family

ID=7836485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98943726A Expired - Lifetime EP0998549B1 (fr) 1997-07-22 1998-07-13 Utilisation de solutions contenant des enzymes pour nettoyer des cuves de fermentation ou de stockage

Country Status (7)

Country Link
US (2) US6564813B1 (fr)
EP (1) EP0998549B1 (fr)
AT (1) ATE215122T1 (fr)
DE (2) DE19731398A1 (fr)
DK (1) DK0998549T3 (fr)
ES (1) ES2174481T3 (fr)
WO (1) WO1999005252A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19731398A1 (de) * 1997-07-22 1999-01-28 Henkel Ecolab Gmbh & Co Ohg Verwendung enzymhaltiger Lösungen zum Reinigen von Gär- und Lagertanks
US6817366B1 (en) * 2002-10-24 2004-11-16 L W Chemicals, Inc. Beverage flow line cleaner with safety indicator and method of use
US7159598B2 (en) * 2003-11-20 2007-01-09 Renew Systems, Inc. Cleaning system and method of use
US8097241B2 (en) * 2007-04-06 2012-01-17 Lawrence Orubor Formulation and method for treating animal waste
CA2692791A1 (fr) * 2007-07-06 2009-01-15 Laclede, Inc. Utilisation d'enzymes hydrolytiques et oxydantes pour dissoudre un biofilm dans les voies aeriennes
SI2243821T1 (sl) 2009-04-20 2015-04-30 Realco Sa Produkt in metoda za eliminacijo biofilmov
CA2817105A1 (fr) 2010-10-15 2012-04-19 S.A. Realco Produit et procede d'elimination des biofilms
WO2012048758A1 (fr) 2010-10-15 2012-04-19 S.A. Realco Produit et procede d'elimination des biofilms
PL2537601T3 (pl) * 2011-06-24 2021-08-02 Realco Zestaw i sposób wykrywania biofilmu
BE1028711B1 (fr) 2020-10-16 2022-05-18 Realco S A Composition détergente pour l'élimination des biofilms sur des installations industrielles

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US4081396A (en) 1976-01-07 1978-03-28 Batterton Thomas E Method of cleaning
EP0265979B2 (fr) 1986-09-29 1998-06-03 Akzo Nobel N.V. Compositions détergentes aqueuses épaissies
JPS6390586A (ja) 1986-09-29 1988-04-21 リ−・フア−マス−テイカルズ・インコ−ポレイテツド 改良された接着タブ系
DE3635357A1 (de) 1986-10-17 1988-04-21 Veit Wellhoener Verfahren zur reinigung und keimreduzierung in der getraenkeindustrie
NO170944C (no) 1987-01-24 1992-12-30 Akzo Nv Fortykkede, vandige preparater, samt anvendelse av slike
EP0314232A3 (fr) 1987-10-27 1990-07-04 Unilever N.V. Gels épaississants
DE3921839A1 (de) 1989-07-03 1991-01-17 Henkel Kgaa Enzymatischer reiniger
DE9104192U1 (de) 1991-04-06 1991-06-27 Auto Gehret, 8900 Augsburg Manuell verstellbare Anzeigevorrichtung
US5399285A (en) 1992-10-30 1995-03-21 Diversey Corporation Non-chlorinated low alkalinity high retention cleaners
GB9314410D0 (en) 1993-07-13 1993-08-25 Jeyes Group Plc Cleansing compositions
CN1092099A (zh) 1994-02-05 1994-09-14 武汉通达控制研究所 啤酒发酵罐清洗剂及其配制方法
US5858117A (en) * 1994-08-31 1999-01-12 Ecolab Inc. Proteolytic enzyme cleaner
AU3341995A (en) * 1994-09-01 1996-03-22 Novo Nordisk A/S A basic protein composition for killing or inhibiting microbial cells
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EP0724013A1 (fr) 1995-01-30 1996-07-31 Colgate-Palmolive Company Concentrés de détergents versables qui maintiennent ou augmentent leur viscosité après dilution dans l'eau
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JPH11510204A (ja) 1995-07-27 1999-09-07 ユニリーバー・ナームローゼ・ベンノートシヤープ アニオン安定化酵素現場洗浄系
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Also Published As

Publication number Publication date
DE59803535D1 (de) 2002-05-02
ES2174481T3 (es) 2002-11-01
EP0998549B1 (fr) 2002-03-27
US6799585B2 (en) 2004-10-05
DK0998549T3 (da) 2002-07-22
US20030205247A1 (en) 2003-11-06
US6564813B1 (en) 2003-05-20
WO1999005252A1 (fr) 1999-02-04
ATE215122T1 (de) 2002-04-15
DE19731398A1 (de) 1999-01-28

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