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EP0929641A2 - Agent de nettoyage de surfaces - Google Patents

Agent de nettoyage de surfaces

Info

Publication number
EP0929641A2
EP0929641A2 EP97942959A EP97942959A EP0929641A2 EP 0929641 A2 EP0929641 A2 EP 0929641A2 EP 97942959 A EP97942959 A EP 97942959A EP 97942959 A EP97942959 A EP 97942959A EP 0929641 A2 EP0929641 A2 EP 0929641A2
Authority
EP
European Patent Office
Prior art keywords
acid
enzyme
cleaning
milk
surfactant
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.)
Withdrawn
Application number
EP97942959A
Other languages
German (de)
English (en)
Inventor
Siegfried Bragulla
Karl-Heinz Maurer
Andreas Potthoff
Wilfried Serve
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 EP0929641A2 publication Critical patent/EP0929641A2/fr
Withdrawn legal-status Critical Current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
    • C11D3/38627—Preparations containing enzymes, e.g. protease or amylase containing lipase
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/042—Acids
    • 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
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • 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

Definitions

  • the invention relates to an agent for cleaning surfaces contaminated by milk or milk products and to the use thereof.
  • alkaline cleaners are used that contain complexing agents to stabilize the water hardness. These alkaline "single-phase cleaners" - those cleaners that do not require the additional use of acidic products Remove residues from dairy products - are less preferred from an environmental point of view because they contain complexing agents.
  • alkaline cleaners in the removal of protein-containing dirt residues, such as dairy products, is necessary according to the prior art known to date.
  • the use of alkali cleaners either entails an additional cleaning step (cleaning with the aid of acid cleaners) or the addition of the less preferred complexing agents.
  • a means for cleaning surfaces contaminated by milk or milk products, which contains at least one protease and / or at least one lipase as enzyme (s), at least one surfactant component and at least one acid component.
  • anionic, cationic, amphoteric or non-ionic surfactants or any mixtures of these classes of surfactants can be used as the surfactant component.
  • Compounds such as fatty alcohol polyglycol ethers, fatty acid amides, fatty acid ethoxylates and fatty acid esters of polyols, in particular sugars (glucose), fatty alcohol alkoxylates with EO / PO or their commercially available mixtures are preferred as nonionic surfactants.
  • the aspartic proteases are used as acid proteases to remove the protein residues from among the proteases. They have a catalytic optimum in the acidic pH range, since the protonation of a catalytically active aspartate residue in the active center of the enzyme is necessary.
  • enzymes of animal, fungal and bacterial origin are suitable for removing the residues (EC 3.4.23 ).
  • residues EC 3.4.23
  • pepsin, gastriesin, rennin or chymosin of animal origin are particularly noteworthy.
  • penicillopepsin of bacterial origin is particularly noteworthy.
  • aspartic proteases from various fungi, in particular from Mucor spp., Aspergillus niger, Rhizopus spp. and Endothia parasitica.
  • the ratio of pepsin to protease is 10: 1 to 1:10, preferably 5: 1 to 1: 5.
  • lipases in particular those are used which have a pH optimum in the acidic range.
  • lipases from fungi especially from Humicola insolens.
  • the pH of the application solution is adjusted to 0.5 to 4.0, the range between 1.5 and 3.5 being particularly preferred.
  • the pH of the application solution can be adjusted by using conventional pH buffer mixtures. All commercially available, organic and inorganic acids such as nitric acid, phosphoric acid, citric acid, lactic acid, acetic acid, Methanesulfonic acid, formic acid, amidosulfonic acid are used. However, the application solution should preferably be free of phosphates and nitrates.
  • additives are added to the acidic cleaning agent to remove milk stains, one or more disinfectants and / or one or more antifoams and / or one or more enzyme stabilizers being used.
  • Particularly preferred disinfectants from the class of cationic surfactants are, in particular, their straight-chain or cyclic C 8 -C 18 tetraalkylammonium compounds, C 8 -C 18 benzalkonium chlorides, quaternary C 8 -C 18 alkylphosphonium salts.
  • Particularly preferred disinfectants from the class of amphoteric surfactants are, for example, C 8 -C 18 fatty acid amine derivatives with betaine structure, in particular glycine derivatives and
  • Cocoalkyldimethylammonium betaine Particularly preferred disinfectants from the class of anion-active substances, such as Alk3240688, ether carboxylic acids from DE-A-4225626 and from the class of anion-active surfactants, are those which consist of aromatic sulfonic acids, alkylsulfonic acids, alkyl ether sulfonic acids, fatty alcohol sulfuric acid esters and sulfonated fatty acids (eg alkylbenzenesulfonic acid, dodecylbenzonic acid, dodecylbenzonic acid, dodecylbenzonic acid, dodecylbenzonic acid, dodecylbenzonic acid, dodecylbenzonic acid, dodecylbenzonic acid, dodecylbenzonic acid, dodecylbenzonic acid, dodecylbenzonic acid, dodecylbenzonic acid, Alkanesulfonic acids) are produced.
  • an anti-foaming agent C can 12- 6 ⁇ -Fettalkoholalkylate, Fettalkoholblockpolymerisate EO / PO, C 12-16 fatty alcohol-EO / PO adducts, and C 12-16 - fatty alcohol polyglycol ethers are used alone or as mixtures. If necessary, customary enzyme stabilizers such as glycols (for example 1, 2-propanediol), borate salts and / or carboxylic acids can be added to the enzyme mixtures.
  • customary enzyme stabilizers such as glycols (for example 1, 2-propanediol), borate salts and / or carboxylic acids can be added to the enzyme mixtures.
  • Disinfectants, anti-foaming agents and enzyme stabilizers are used in the usual, known concentrations.
  • the total concentration of enzyme (s), surfactant (s), acid (s) and additives) in the application solution is 0.5 to 10% by weight, preferably 1 to 5% by weight.
  • a weight ratio of the enzyme to the surfactant component (s) is between 1: 10000 and 1:10, preferably between 1: 10000 and 1: 1000, and a weight ratio of the enzyme and surfactant component (s) (to) the acid component (s) between 1: 1 and 1:99, preferably between 1: 5 and 1:50.
  • a weight ratio of the enzyme, surfactant and acid components to the additive (s) is chosen between 10:90 and 90:10, preferably between 20:80 and 80:20.
  • the cleaning agent according to the invention is packaged in liquid form as an aqueous solution, in semi-solid form as a paste, in solid form as a tablet or in powder form.
  • a powder or tablet product is preferred for reasons of active substance concentration, and a liquid product is preferred for reasons of more convenient handling.
  • the acidic cleaner is a powder or tablet product, this is preferably composed of about 20 to about 80% by weight of an organic or inorganic substance which is acidic when dissolved in water, about 0.1 to about 5% by weight. non-ionic surfactants, about 0.1 to about 10% by weight, preferably about 0.1 to 5% by weight, of one or more microbicidal compounds from groups b1) to b4), the rest being 100% by weight, for example Sodium sulfate and / or other active ingredients or auxiliaries can exist. Since the cleaner is supposed to be a powder product, The organic or inorganic substance that reacts acidically when dissolved in water must be a solid.
  • inorganic substances examples include acidic salts such as dihydrogen phosphates or hydrogen sulfates.
  • Organic substances that can be used are, for example, carboxylic acids such as tartaric acid or citric acid or, for example, sulfonic acids such as amidosulfonic acid.
  • Addition products of ethylene oxide and / or propylene oxide onto fatty alcohols, fatty amines or fatty acids with 12 to 18 carbon atoms in the alkyl radical or fatty acid esters of polyols, in particular of sugars such as glucose, are preferably chosen as nonionic surfactants. Addition products of ethylene oxide and / or propylene oxide onto fatty alcohols are particularly preferred.
  • addition products are addition products of on average 8 or on average 6 ethylene oxide units on fatty alcohol mixtures with 12 to 18 carbon atoms in the alkyl radical.
  • Further examples are adducts of ethylene oxide and propylene oxide with such fatty alcohols, for example an adduct of 5 moles of ethylene oxide and 4 moles of propylene oxide with a fatty alcohol mixture having 12 to 14 carbon atoms in the alkyl radical.
  • Another nonionic surfactant that can be used is an adduct of 5 moles of ethylene oxide with oleyl alcohol.
  • the acidic cleaner is preferably composed of about 20 to about 80% by weight of phosphoric acid, formic acid, acetic acid, glycolic acid, lactic acid, citric acid and / or methanesulfonic acid as such, as a solution in one another or in the form an aqueous solution having an acid content of at least 5% by weight, about 0.1 to about 5% by weight of nonionic surfactants as described above, about 0.1 to about 10% by weight, preferably about 0.1 to about 5% by weight of one or more microbicidal compounds from groups b1) to b4), the remainder being 100% by weight of water or an aqueous solution of further active ingredients or auxiliaries.
  • Liquid acids can be used individually or as a mixture with one another. Solid acids like for example, citric acid can be present in another liquid acid or dissolved in water. If acids are used as an aqueous solution, they should have an acid content of at least 5% by weight in order to achieve a sufficient acid concentration in the dilute application solution. If, for reasons of environmental protection, it is desired to use a phosphate-free acidic cleaner, this preferably contains a combination of several of the organic acids mentioned. Examples of these are mixtures of methanesulfonic acid, citric acid and formic acid, acetic acid, lactic acid and citric acid, acetic acid, glycolic acid and methanesulfonic acid and further combinations. If necessary, so much water is added to these acid combinations that a clear solution is formed.
  • the compound is provided as a compact cleaning agent with all components or as a set of complementary partial formulations, each with one or more components.
  • a combination of separate sub-formulations is possible especially for liquid products.
  • the use of the agents according to the invention for cleaning surfaces contaminated by milk or milk products is claimed.
  • the use of the ready-made cleaning agent according to the invention as an application solution is carried out at temperatures between 20 ° and 70 ° C., preferably between 40 ° and 60 ° C.
  • the cleaning was carried out in a diving apparatus with hydraulic mechanics. A temperature of 40 ° C was selected during the cleaning process. The water had a hardness of 16 ° d. The cleaning process took 15 minutes. A) condensed milk and b) milk stone (designated in the description of the results as (a) and (b)) served as soiling for the tests. The percentage result results relate to the degree of dirt removal after cleaning compared to standard soiling before cleaning. The results were determined by gravimetric measurements.
  • the cleaner had the following composition:
  • the cleaner had the following composition:
  • a cleaning performance of 62% was achieved under test conditions (a), and a cleaning performance of 41% was achieved under test conditions (b).
  • Formulation of an acidic, enzyme-containing cleaner according to the invention in powder form (use concentration of 0.5%)
  • the cleaner had the following composition:
  • protease A (Amano) from fungi (e.g. Aspergillus niger), 1% lipase and the rest sodium sulfate.
  • a cleaning performance of 99.5% was achieved under test conditions (a), and a cleaning performance of 98% was achieved under test conditions (b).
  • the detergent components had the following compositions: (A) 30% formic acid, 10% citric acid, 3% non-ionic surfactants (here: ethoxylated fatty alcohols) and distilled water.
  • a cleaning performance of 99% was achieved under test conditions (a), and a cleaning performance of 98.5% was achieved under test conditions (b).
  • Example 1 Comparison of Examples 1 and 2, which are based on cleaning with agents according to the known prior art, with the cleaning performance of the acidic, enzyme-containing agents according to the invention (Examples 3 and 4) shows that the compositions according to the invention have an at least comparable (with Example 1) or even superior (compared to Example 2) effectiveness in removing milk or milk product stains.

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)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

L'invention a pour but d'améliorer des agents destinés à nettoyer des surfaces encrassées par des matières protéiniques et/ou des matières grasses, notamment en ce qui concerne l'effet de tels agents sur des dépôts de lait ou de produits laitiers. Ce but est atteint grâce au fait qu'on utilise comme enzyme(s) au moins une protéase et/ou au moins une lipase, au moins un composant tensioactif et au moins un composant acide.
EP97942959A 1996-09-30 1997-09-22 Agent de nettoyage de surfaces Withdrawn EP0929641A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19640201 1996-09-30
DE1996140201 DE19640201A1 (de) 1996-09-30 1996-09-30 Mittel zur Reinigung von Oberflächen
PCT/EP1997/005184 WO1998014547A2 (fr) 1996-09-30 1997-09-22 Agent de nettoyage de surfaces

Publications (1)

Publication Number Publication Date
EP0929641A2 true EP0929641A2 (fr) 1999-07-21

Family

ID=7807368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97942959A Withdrawn EP0929641A2 (fr) 1996-09-30 1997-09-22 Agent de nettoyage de surfaces

Country Status (8)

Country Link
EP (1) EP0929641A2 (fr)
JP (1) JP2001501244A (fr)
AU (1) AU719542B2 (fr)
CA (1) CA2267331A1 (fr)
DE (1) DE19640201A1 (fr)
NZ (1) NZ334912A (fr)
PL (1) PL332322A1 (fr)
WO (1) WO1998014547A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7494963B2 (en) 2004-08-11 2009-02-24 Delaval Holding Ab Non-chlorinated concentrated all-in-one acid detergent and method for using the same

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804829A1 (de) 1998-02-06 1999-08-26 Henkel Ecolab Gmbh & Co Ohg Verfahren zur Reinigung von Melkanlagen
DE19838939A1 (de) * 1998-08-27 2000-03-09 Henkel Ecolab Gmbh & Co Ohg Verfahren zur Reinigung von Milcherhitzern
GB0004130D0 (en) * 2000-02-23 2000-04-12 Procter & Gamble Detergent tablet
US7795199B2 (en) 2000-06-29 2010-09-14 Ecolab Inc. Stable antimicrobial compositions including spore, bacteria, fungi, and/or enzyme
US7569532B2 (en) 2000-06-29 2009-08-04 Ecolab Inc. Stable liquid enzyme compositions
US6472199B1 (en) * 2001-04-04 2002-10-29 West Agro, Inc. Method of cleaning dairy pipelines using enzyme pretreatment
DE102006045221B3 (de) * 2006-09-25 2008-04-03 Poligrat Gmbh Elektropolierverfahren für Kobalt und Kobaltlegierungen und Elektrolyt
US7723281B1 (en) 2009-01-20 2010-05-25 Ecolab Inc. Stable aqueous antimicrobial enzyme compositions comprising a tertiary amine antimicrobial
US7964548B2 (en) 2009-01-20 2011-06-21 Ecolab Usa Inc. Stable aqueous antimicrobial enzyme compositions
WO2014177530A1 (fr) * 2013-05-03 2014-11-06 Basf Se Préparation antimicrobienne synergique
EP3034596B2 (fr) 2014-12-17 2021-11-10 The Procter & Gamble Company Composition de détergent
ES2733300T3 (es) 2014-12-17 2019-11-28 Procter & Gamble Composición detergente
EP3034597A1 (fr) 2014-12-17 2016-06-22 The Procter and Gamble Company Composition de détergent

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1273545A (en) * 1968-06-24 1972-05-10 Albright & Wilson Multi-enzyme cleaning compositions
US4212761A (en) * 1978-03-06 1980-07-15 Novo Laboratories, Inc. Method and composition for cleaning dairy equipment
ATE28757T1 (de) * 1982-04-23 1987-08-15 Thilo & Co Gmbh Dr Enzymatisches reinigungsmittel fuer kontaktlinsen mit ph-kontrollierter wirkung.
JPH078997B2 (ja) * 1988-09-03 1995-02-01 ジェクス株式会社 哺乳びん専用洗浄剤
FR2662173A1 (fr) * 1990-05-15 1991-11-22 Henkel France Composition pour le nettoyage et la desinfection du materiel de traite.
JP2714495B2 (ja) * 1991-04-04 1998-02-16 花王株式会社 非イオン性粉末洗浄剤組成物
US5529788A (en) * 1994-10-07 1996-06-25 Southland, Ltd. Enzyme containing effervescent cleaning tablet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9814547A3 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7494963B2 (en) 2004-08-11 2009-02-24 Delaval Holding Ab Non-chlorinated concentrated all-in-one acid detergent and method for using the same
US7501027B2 (en) 2004-08-11 2009-03-10 Delaval Holding Ab Non-chlorinated concentrated all-in-one acid detergent and method for using the same

Also Published As

Publication number Publication date
AU719542B2 (en) 2000-05-11
CA2267331A1 (fr) 1998-04-09
DE19640201A1 (de) 1998-04-02
PL332322A1 (en) 1999-08-30
JP2001501244A (ja) 2001-01-30
WO1998014547A2 (fr) 1998-04-09
NZ334912A (en) 2000-09-29
WO1998014547A3 (fr) 1998-06-25
AU4460597A (en) 1998-04-24

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