GB1570492A - Sterilization of articles - Google Patents
Sterilization of articles Download PDFInfo
- Publication number
- GB1570492A GB1570492A GB4714975A GB4714975A GB1570492A GB 1570492 A GB1570492 A GB 1570492A GB 4714975 A GB4714975 A GB 4714975A GB 4714975 A GB4714975 A GB 4714975A GB 1570492 A GB1570492 A GB 1570492A
- Authority
- GB
- United Kingdom
- Prior art keywords
- peracetic acid
- sterilizing
- hydrogen peroxide
- concentration
- articles
- 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.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
Description
(54) STERILIZATION OF ARTICLES
(71) We, METAL BOX LIMITED, of Queens House, Forbury Road,
Reading RGI 3JH, Berkshire, a British Company, do hereby declare the invention for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- This invention relates to the sterilization of articles. In particular, but not exclusively, the invention relates to the sterilization of plastics containers for later filling with a sterile food product such as a soup.
It is well known in aseptic filling lines to use plastics containers and to sterilize them by means of an aqueous solution of hydrogen peroxide (H2O2) applied at a concentration of about 30V and at a temperature in excess of 80"C. Such relatively high concentrations and temperatures are needed to effect the rapid rate of sterilization demanded of modern aseptic packaging lines.
The solution is applied as a spray beneath which the containers are moved on a conveyor. From the spray the containers pass to a bank of blowers by which sterile hot air is directed onto them to evaporate or drive off the sterilizing agent together with the water in which it is dissolved. The containers accordingly leave the blower bank dry and in a sterile condition, and in this state are passed to the filling station of the machine for filling with metered quantites of sterile food product as desired, and for later closing and sealing with a sterile diaphragm.
It is also known to employ an aqueous solution of peracetic acid (CH3CO
OOH) as a sterilizing medium, in either wash or spray form. The acid is used in a concentration of between 10/, and 20/, and at a temperature generally within the range 400C to SOOC. The use of temperatures higher than this tends to be counterproductive because of the substantial volatilisation of the acid which then occurs.
Throughout the Specification and Claims the concentrations given for peracetic acid or hydrogen peroxide are in weight of the sterilizing agent by volume of the aqueous solution in which they are dissolved. The term "concentration" should be construed accordingly.
According to the present invention from one aspect there is provided a method of sterilizing an article or a part thereof, in which the article is subjected to a sterilizing medium comprising hydrogen peroxide and peracetic acid in aqueous solution, the concentration of the peracetic acid lying within the range 0.01 /,, to 0.5(;.
This provision of peracetic acid in a concentration which is substantially smaller than the concentrations employed when the acid is used alone has been found to increase the effectiveness of hydrogen peroxide solution to a marked extent. Without any sacrifice of sterilizing efficiency it thereby enables the concentration of the hydrogen peroxide to be substantially reduced, so not only reducing material costs but also facilitating the later removal of the sterilizing medium. Additionally or alternatively it enables the use of shorter exposure, and hence process times, or the use of lower sterilizing temperatures, the latter being a particularly important desideratum where the articles to be sterilized are particularly sensitive to elevated temperatures.
It is hoped that the concentration of the peracetic acid may be sufficiently low to substantially reduce or avoid the unpleasantness, corrosive effect, and safety hazard attendant upon the use of peracetic acid in the concentrations used hitherto, so that the advantage described above are not substantially negated by counteracting disadvantages.
From a second aspect the invention provides apparatus for sterilizing articles, which comprises a conveyor for the articles to be sterilized, a source of a sterilizing medium comprising hydrogen peroxide and peracetic acid in aqueous solution, the concentration of the peracetic acid lying within the range 0.01 /" to 0.05 ,', spray means located along the conveyor for acting in succession upon the articles carried by the conveyor, said spray means being arranged to direct onto the articles a spray of said sterilizing medium at ambient temperature, and hot air means adapted for directing hot air into the articles whereby to activate the hydrogen peroxide and peracetic acid deposited on the articles by the spray means and subsequently, after sterilization has taken place, to drive off the hydrogen peroxide and peracetic acid and the water in which they are dissolved.
In order that the invention may be more fully understood the results are given below of laboratory tests in which estimates were made of the survival rate of spores of Bacillus subtilis var globigil strain B17 when subjected to hydrogen peroxide alone (column 3) and hydrogen peroxide in the same concentration but with 0.1% of peracetic acid added (column 4). Tables 1 and 2 are given for two different hydrogen peroxide concentrations each table including a test at each of three different temperatures (column 1).
For each test four test samples were used, these being polystyrene strips on which the spores had been deposited; the spore count for each strip at the beginning of the test was approximately 9x105 living spores. As a further test parameter, in each test the four samples used were subjected to the sterilizing medium for different exposure times, as set down in Column 2 of each table.
TABLE 1
1. 2. 3. 4.
20.4% hydrogen 20.4%hydrogen peroxide+0. 1% Temp. (OC) Time (Sec) peroxide peracetic acid.
65 2 uncountable uncountable
4 uncountable N800
7 uncountable nil--l 12 > 800 nil
75 2 uncountable 122-304 4 uncountable nil-? 7 300-uncountable nil--l 12 1-7 nil
85 2 uncountable nil-8 4 not done nil
7 > 600 nil
12 71-145 nil
TABLE 2
1. 2. 3. 4.
30.2 /" hydrogen
30.2% hydrogen peroxide+0.1% Temp. (CC) Time (Sec) peroxide peracetic acid
65 2 uncountable uncountable
4 uncountable 25-80 7 uncountable nil
12 5-32 nil-21 75 2 uncountable nil-? 4 uncountable nil--l 7 nil-35 nil-2 12 nil-16 nil 85 2 10i1 430 nil-3 4 2094 nil
7 10--25 nil
12 66-138 nil
From a comparison of columns 3 and 4 of each table it will be seen that the presence of 0.1% peracetic acid significantly reduces the survival rate of the spores; in both tables, in fact, the survival rate when peracetic acid is used is zero or negligible for all but the shortest exposure times and temperatures. Whereas there is a significant increase in failure rate if the hydrogen peroxide concentration is reduced from 30.2% to 20.4% when the peracetic acid is absent, this is not so if the peracetic acid is added. Thus, lower concentrations of hydrogen peroxide can in general be used.
From other aspects it will be seen that the addition of the peracetic acid significantly reduces the temperature of the sterilizing medium required to achieve a particular spore survival level using a predetermined exposure time and hydrogen peroxide concentration; conversely, for the same temperature and hydrogen peroxide concentration, the peracetic acid significantly reduces the exposure time necessary to achieve a given spore survival level.
In further tests (not shown) concentrations of 0.01% and 0.05% of peracetic acid with 20% hydrogen peroxide were used. Again, a significant improvement of sterilizing efficiency was achieved by the addition of the peracetic acid, although the effect was considerably less marked with the 0.01% concentration than with the 0.05", concentration. It is believed, in fact, that the 0.01 /O concentration level is about the minimum which can usefully be employed. Concentrations of peracetic acid of greater than 0.1 ó were not tried because, as manifest from Tables 1 and 2, this level was largely adequate for most practical purposes. However, it is believed that concentrations of up to 0.5 Ó peracetic.acid may be used with advantage.
To avoid substantial loss by volatilization the peracetic acid is preferably applied cold. A preferred method of applying the hydrogen peroxide and peracetic acid to plastics tubs for later filling with sterile product is to carry the tubs on a conveyor in succession through a spraying station, a sterilizing/drying station, a filling station and finally a closing and sealing station.
In the spraying station the tubs are subjected at room temperature to a fine spray of an aqueous solution of the hydrogen peroxide and the peracetic acid supplied from a source of the solution.
The sterilizing/drying station is a tunnel in which hot air is directed onto the tubs to activate the sterilizing agents and, after sterilization has taken place, to drive off the sterilizing agents and the water in which they are dissolved. The tubs, which therefore leave the sterilizing/drying station both dry and sterile, are thereafter filled in the filling station and closed and sealed by a sterile metal foil diaphragm in the closing and sealing station. They are then ready for dispatch.
WHAT WE CLAIM IS:
1. A method of sterilizing an article or a part thereof, in which the article is subjected to a sterilizing medium comprising hydrogen peroxide and peracetic acid in aqueous solution, the concentration of the peracetic acid lying within the range 0.01% to 0.5%.
2. A method according to Claim 1, wherein the concentration of the peracetic acid is 0.1%.
3. A method according to any preceding Claim, wherein the said sterilizing medium is applied to the article at ambient temperature, and is later heated to activate the hydrogen peroxide and peracetic acid.
5. Apparatus for sterilizing articles, which comprises a conveyor for the articles to be sterilized, a source of a sterilizing medium comprising hydrogen peroxide and peracetic acid in aqueous solution, the concentration of the peracetic acid lying within the range 0.01% to 0.5%, spray means located along the conveyor for acting in succession upon the articles carried by the conveyor, said spray means being arranged to direct onto the articles a spray of said sterilizing medium at ambient temperature, and hot air means adapted for directing hot air onto the articles whereby to activate the hydrogen peroxide and peracetic acid deposited on the articles by the spray means and subsequently, after sterilization has taken place, to drive off the hydrogen peroxide and peracetic acid and the water in which they are dissolved.
6. A sterilizing medium for a method as claimed in any one of Claims 1 to 4, comprising, in aqueous solution, hydrogen peroxide and peracetic acid, the peracetic acid having a concentration lying within the range 0.01% to 0.5%.
7. A method of sterilizing an article, substantially as herein described.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (1)
- **WARNING** start of CLMS field may overlap end of DESC **.peracetic acid is added. Thus, lower concentrations of hydrogen peroxide can in general be used.From other aspects it will be seen that the addition of the peracetic acid significantly reduces the temperature of the sterilizing medium required to achieve a particular spore survival level using a predetermined exposure time and hydrogen peroxide concentration; conversely, for the same temperature and hydrogen peroxide concentration, the peracetic acid significantly reduces the exposure time necessary to achieve a given spore survival level.In further tests (not shown) concentrations of 0.01% and 0.05% of peracetic acid with 20% hydrogen peroxide were used. Again, a significant improvement of sterilizing efficiency was achieved by the addition of the peracetic acid, although the effect was considerably less marked with the 0.01% concentration than with the 0.05", concentration. It is believed, in fact, that the 0.01 /O concentration level is about the minimum which can usefully be employed. Concentrations of peracetic acid of greater than 0.1 ó were not tried because, as manifest from Tables 1 and 2, this level was largely adequate for most practical purposes. However, it is believed that concentrations of up to 0.5 Ó peracetic.acid may be used with advantage.To avoid substantial loss by volatilization the peracetic acid is preferably applied cold. A preferred method of applying the hydrogen peroxide and peracetic acid to plastics tubs for later filling with sterile product is to carry the tubs on a conveyor in succession through a spraying station, a sterilizing/drying station, a filling station and finally a closing and sealing station.In the spraying station the tubs are subjected at room temperature to a fine spray of an aqueous solution of the hydrogen peroxide and the peracetic acid supplied from a source of the solution.The sterilizing/drying station is a tunnel in which hot air is directed onto the tubs to activate the sterilizing agents and, after sterilization has taken place, to drive off the sterilizing agents and the water in which they are dissolved. The tubs, which therefore leave the sterilizing/drying station both dry and sterile, are thereafter filled in the filling station and closed and sealed by a sterile metal foil diaphragm in the closing and sealing station. They are then ready for dispatch.WHAT WE CLAIM IS:1. A method of sterilizing an article or a part thereof, in which the article is subjected to a sterilizing medium comprising hydrogen peroxide and peracetic acid in aqueous solution, the concentration of the peracetic acid lying within the range 0.01% to 0.5%.2. A method according to Claim 1, wherein the concentration of the peracetic acid is 0.1%.3. A method according to any preceding Claim, wherein the said sterilizing medium is applied to the article at ambient temperature, and is later heated to activate the hydrogen peroxide and peracetic acid.5. Apparatus for sterilizing articles, which comprises a conveyor for the articles to be sterilized, a source of a sterilizing medium comprising hydrogen peroxide and peracetic acid in aqueous solution, the concentration of the peracetic acid lying within the range 0.01% to 0.5%, spray means located along the conveyor for acting in succession upon the articles carried by the conveyor, said spray means being arranged to direct onto the articles a spray of said sterilizing medium at ambient temperature, and hot air means adapted for directing hot air onto the articles whereby to activate the hydrogen peroxide and peracetic acid deposited on the articles by the spray means and subsequently, after sterilization has taken place, to drive off the hydrogen peroxide and peracetic acid and the water in which they are dissolved.6. A sterilizing medium for a method as claimed in any one of Claims 1 to 4, comprising, in aqueous solution, hydrogen peroxide and peracetic acid, the peracetic acid having a concentration lying within the range 0.01% to 0.5%.7. A method of sterilizing an article, substantially as herein described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4714975A GB1570492A (en) | 1976-12-14 | 1976-12-14 | Sterilization of articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4714975A GB1570492A (en) | 1976-12-14 | 1976-12-14 | Sterilization of articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1570492A true GB1570492A (en) | 1980-07-02 |
Family
ID=10443918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4714975A Expired GB1570492A (en) | 1976-12-14 | 1976-12-14 | Sterilization of articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1570492A (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0193416A1 (en) * | 1985-01-30 | 1986-09-03 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Sterilizing composition for contact lenses |
| FR2584503A1 (en) * | 1985-02-07 | 1987-01-09 | Laroche Jean Michel | Method for sterilising contact lenses |
| EP0411970A1 (en) * | 1989-06-26 | 1991-02-06 | FMC Corporation | Sterilization of containers by means of hydrogen peroxide, peracids, and u.v. radiation |
| US5827542A (en) * | 1996-02-12 | 1998-10-27 | Healthpoint, Ltd. | Quick acting chemical sterilant |
| WO2001005255A1 (en) * | 1999-07-14 | 2001-01-25 | Steris Inc. | Surface decontamination of frankfurters and other cooked sausage and processed meat and poultry products |
| WO2002032228A2 (en) * | 2000-10-17 | 2002-04-25 | Bayer Corporation | Process for inhibiting the growth of microorganisms in a pesticide suspension |
| EP1226835A1 (en) * | 2001-01-26 | 2002-07-31 | S.E.P.P.I.C., Societe D'exploitation De Produits Pour Les Industries Chimiques | Method of disinfecting premises by thermospraying an aqueous solution of peracetic acid and solution for carrying out said method |
| CN1088558C (en) * | 1997-04-22 | 2002-08-07 | 三星电子株式会社 | Sterilizing composition for making ultrapure water in semiconductor devices fabrication process, method of sterilizing ultrapure water delivery system using this, and ultrapure water delivery system |
| FR2842110A1 (en) * | 2002-07-11 | 2004-01-16 | Seppic Sa | Cleaning and disinfecting premises, especially poultry or pig houses, comprises spraying an aqueous peracetic acid foam and thermonebulizing an aqueous peracetic acid solution |
| US6767569B1 (en) | 1999-07-14 | 2004-07-27 | Steris Inc. | Surface decontamination of cooked sausage and processed meat and poultry products |
| US6964788B2 (en) | 2001-05-07 | 2005-11-15 | Steris Inc. | System for handling processed meat and poultry products |
| US7754670B2 (en) | 2005-07-06 | 2010-07-13 | Ecolab Inc. | Surfactant peroxycarboxylic acid compositions |
| US7771737B2 (en) | 2004-01-09 | 2010-08-10 | Ecolab Inc. | Medium chain peroxycarboxylic acid compositions |
| US7832360B2 (en) | 2000-12-15 | 2010-11-16 | Ecolab Usa Inc. | Method and composition for washing poultry during processing |
| US7887641B2 (en) | 2004-01-09 | 2011-02-15 | Ecolab Usa Inc. | Neutral or alkaline medium chain peroxycarboxylic acid compositions and methods employing them |
| US8017082B2 (en) | 2006-10-18 | 2011-09-13 | Ecolab Usa Inc. | Apparatus and method for making a peroxycarboxylic acid |
| US8030351B2 (en) | 1998-08-20 | 2011-10-04 | Ecolab, Inc. | Treatment of animal carcasses |
| US8075857B2 (en) | 2006-10-18 | 2011-12-13 | Ecolab Usa Inc. | Apparatus and method for making a peroxycarboxylic acid |
| US8124132B2 (en) | 2000-07-12 | 2012-02-28 | Ecolab Usa Inc. | Method and composition for inhibition of microbial growth in aqueous food transport and process streams |
| US8128976B2 (en) | 2004-01-09 | 2012-03-06 | Ecolab Usa Inc. | Methods for washing poultry during processing with medium chain peroxycarboxylic acid compositions |
| US8187652B2 (en) | 2004-01-09 | 2012-05-29 | Ecolab Usa Inc. | Methods for washing carcasses, meat, or meat products with medium chain peroxycarboxlyic acid compositions |
| EP2816002A1 (en) | 2013-06-21 | 2014-12-24 | Alex Guamis Alegre | Continuous packaging process using ultraviolet C light to sterilise bottles |
| US8999175B2 (en) | 2004-01-09 | 2015-04-07 | Ecolab Usa Inc. | Methods for washing and processing fruits, vegetables, and other produce with medium chain peroxycarboxylic acid compositions |
| US9511161B2 (en) | 2004-01-09 | 2016-12-06 | Ecolab Usa Inc. | Methods for reducing the population of arthropods with medium chain peroxycarboxylic acid compositions |
-
1976
- 1976-12-14 GB GB4714975A patent/GB1570492A/en not_active Expired
Cited By (51)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2578332A1 (en) * | 1985-01-30 | 1986-09-05 | Air Liquide | PAIRING COMPOSITION FOR CONTACT LENSES |
| US4743447A (en) * | 1985-01-30 | 1988-05-10 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Composition for disinfecting contact lenses |
| AU579000B2 (en) * | 1985-01-30 | 1988-11-10 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Composition for disinfecting contact lenses |
| EP0193416A1 (en) * | 1985-01-30 | 1986-09-03 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Sterilizing composition for contact lenses |
| FR2584503A1 (en) * | 1985-02-07 | 1987-01-09 | Laroche Jean Michel | Method for sterilising contact lenses |
| EP0411970A1 (en) * | 1989-06-26 | 1991-02-06 | FMC Corporation | Sterilization of containers by means of hydrogen peroxide, peracids, and u.v. radiation |
| US5827542A (en) * | 1996-02-12 | 1998-10-27 | Healthpoint, Ltd. | Quick acting chemical sterilant |
| US6096348A (en) * | 1996-02-12 | 2000-08-01 | Healthpoint, Ltd. | Quick acting chemical sterilant |
| CN1088558C (en) * | 1997-04-22 | 2002-08-07 | 三星电子株式会社 | Sterilizing composition for making ultrapure water in semiconductor devices fabrication process, method of sterilizing ultrapure water delivery system using this, and ultrapure water delivery system |
| CN100384753C (en) * | 1997-04-22 | 2008-04-30 | 三星电子株式会社 | Sterilization method of ultrapure transmission system for microelectronic equipment |
| US9770040B2 (en) | 1998-08-20 | 2017-09-26 | Ecolab Usa Inc. | Treatment of animal carcasses |
| US9560875B2 (en) | 1998-08-20 | 2017-02-07 | Ecolab Usa Inc. | Treatment of animal carcasses |
| US8043650B2 (en) | 1998-08-20 | 2011-10-25 | Ecolab Inc. | Treatment of animal carcasses |
| US8030351B2 (en) | 1998-08-20 | 2011-10-04 | Ecolab, Inc. | Treatment of animal carcasses |
| US9560874B2 (en) | 1998-08-20 | 2017-02-07 | Ecolab Usa Inc. | Treatment of animal carcasses |
| US6767569B1 (en) | 1999-07-14 | 2004-07-27 | Steris Inc. | Surface decontamination of cooked sausage and processed meat and poultry products |
| WO2001005255A1 (en) * | 1999-07-14 | 2001-01-25 | Steris Inc. | Surface decontamination of frankfurters and other cooked sausage and processed meat and poultry products |
| US10342231B2 (en) | 2000-07-12 | 2019-07-09 | Ecolab Usa Inc. | Method and composition for inhibition of microbial growth in aqueous food transport and process streams |
| US9247738B2 (en) | 2000-07-12 | 2016-02-02 | Ecolab Usa Inc. | Method and composition for inhibition of microbial growth in aqueous food transport and process streams |
| US8124132B2 (en) | 2000-07-12 | 2012-02-28 | Ecolab Usa Inc. | Method and composition for inhibition of microbial growth in aqueous food transport and process streams |
| WO2002032228A2 (en) * | 2000-10-17 | 2002-04-25 | Bayer Corporation | Process for inhibiting the growth of microorganisms in a pesticide suspension |
| US6716457B1 (en) | 2000-10-17 | 2004-04-06 | Bayer Polymers Llc | Effects of bactericide (peracetic acid-hydrogen peroxide-water combination) to agricultural chemicals in bacteria control when they are in contact with one another |
| WO2002032228A3 (en) * | 2000-10-17 | 2002-10-03 | Bayer Ag | Process for inhibiting the growth of microorganisms in a pesticide suspension |
| US7832360B2 (en) | 2000-12-15 | 2010-11-16 | Ecolab Usa Inc. | Method and composition for washing poultry during processing |
| US8020520B2 (en) | 2000-12-15 | 2011-09-20 | Ecolab Usa Inc. | Method and composition for washing poultry during processing |
| FR2820042A1 (en) * | 2001-01-26 | 2002-08-02 | Seppic Sa | METHOD FOR THE DISINFECTION OF PREMISES BY THERMONEBULIZATION OF AQUEOUS SOLUTION OF PERACETIC ACID AND SOLUTION IMPLEMENTED IN THE PROCESS |
| EP1226835A1 (en) * | 2001-01-26 | 2002-07-31 | S.E.P.P.I.C., Societe D'exploitation De Produits Pour Les Industries Chimiques | Method of disinfecting premises by thermospraying an aqueous solution of peracetic acid and solution for carrying out said method |
| US6964788B2 (en) | 2001-05-07 | 2005-11-15 | Steris Inc. | System for handling processed meat and poultry products |
| EP1382355A1 (en) * | 2002-07-11 | 2004-01-21 | Societe D'exploitation De Produits Pour Les Industries Chimiques, S.E.P.P.I.C. | Process for the disinfection of livestock barns |
| FR2842110A1 (en) * | 2002-07-11 | 2004-01-16 | Seppic Sa | Cleaning and disinfecting premises, especially poultry or pig houses, comprises spraying an aqueous peracetic acid foam and thermonebulizing an aqueous peracetic acid solution |
| US7887641B2 (en) | 2004-01-09 | 2011-02-15 | Ecolab Usa Inc. | Neutral or alkaline medium chain peroxycarboxylic acid compositions and methods employing them |
| US9888684B2 (en) | 2004-01-09 | 2018-02-13 | Ecolab Usa Inc. | Medium chain perosycarboxylic acid compositions |
| US8187652B2 (en) | 2004-01-09 | 2012-05-29 | Ecolab Usa Inc. | Methods for washing carcasses, meat, or meat products with medium chain peroxycarboxlyic acid compositions |
| US8318188B2 (en) | 2004-01-09 | 2012-11-27 | Ecolab Usa Inc. | Medium chain peroxycarboxylic acid compositions |
| US8758789B2 (en) | 2004-01-09 | 2014-06-24 | Ecolab Usa Inc. | Medium chain peroxycarboxylic acid compositions |
| US10568322B2 (en) | 2004-01-09 | 2020-02-25 | Ecolab Usa Inc. | Medium chain peroxycarboxylic acid compositions |
| US9511161B2 (en) | 2004-01-09 | 2016-12-06 | Ecolab Usa Inc. | Methods for reducing the population of arthropods with medium chain peroxycarboxylic acid compositions |
| US8057812B2 (en) | 2004-01-09 | 2011-11-15 | Ecolab Usa Inc. | Medium chain peroxycarboxylic acid compositions |
| US8999175B2 (en) | 2004-01-09 | 2015-04-07 | Ecolab Usa Inc. | Methods for washing and processing fruits, vegetables, and other produce with medium chain peroxycarboxylic acid compositions |
| US9491965B2 (en) | 2004-01-09 | 2016-11-15 | Ecolab Usa Inc. | Medium chain peroxycarboxylic acid compositions |
| US7771737B2 (en) | 2004-01-09 | 2010-08-10 | Ecolab Inc. | Medium chain peroxycarboxylic acid compositions |
| US8128976B2 (en) | 2004-01-09 | 2012-03-06 | Ecolab Usa Inc. | Methods for washing poultry during processing with medium chain peroxycarboxylic acid compositions |
| US9167814B2 (en) | 2005-07-06 | 2015-10-27 | Ecolab USA, Inc. | Surfactant peroxycarboxylic acid compositions |
| US7754670B2 (en) | 2005-07-06 | 2010-07-13 | Ecolab Inc. | Surfactant peroxycarboxylic acid compositions |
| US9708256B2 (en) | 2006-10-18 | 2017-07-18 | Ecolab Usa Inc. | Method for making a peroxycarboxylic acid |
| US8017082B2 (en) | 2006-10-18 | 2011-09-13 | Ecolab Usa Inc. | Apparatus and method for making a peroxycarboxylic acid |
| US9288982B2 (en) | 2006-10-18 | 2016-03-22 | Ecolab USA, Inc. | Method for making a peroxycarboxylic acid |
| US8075857B2 (en) | 2006-10-18 | 2011-12-13 | Ecolab Usa Inc. | Apparatus and method for making a peroxycarboxylic acid |
| US8957246B2 (en) | 2006-10-18 | 2015-02-17 | Ecolab USA, Inc. | Method for making a peroxycarboxylic acid |
| WO2014202401A1 (en) | 2013-06-21 | 2014-12-24 | Alex Guamis Alegre | Continuous packaging process using ultraviolet c light to sterilise bottles |
| EP2816002A1 (en) | 2013-06-21 | 2014-12-24 | Alex Guamis Alegre | Continuous packaging process using ultraviolet C light to sterilise bottles |
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| PCNP | Patent ceased through non-payment of renewal fee |