EP2692843A1 - Verwendung von C1-oxidierten Stärkehydrolysaten - Google Patents
Verwendung von C1-oxidierten Stärkehydrolysaten Download PDFInfo
- Publication number
- EP2692843A1 EP2692843A1 EP12005684.1A EP12005684A EP2692843A1 EP 2692843 A1 EP2692843 A1 EP 2692843A1 EP 12005684 A EP12005684 A EP 12005684A EP 2692843 A1 EP2692843 A1 EP 2692843A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- starch hydrolysate
- detergent composition
- oxidised
- enzyme
- chelating agent
- 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.)
- Ceased
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- 229920002472 Starch Polymers 0.000 title claims abstract description 53
- 235000019698 starch Nutrition 0.000 title claims abstract description 53
- 239000008107 starch Substances 0.000 title claims abstract description 53
- 239000003599 detergent Substances 0.000 claims abstract description 57
- 239000000203 mixture Substances 0.000 claims abstract description 44
- 239000000413 hydrolysate Substances 0.000 claims abstract description 37
- 239000002738 chelating agent Substances 0.000 claims abstract description 33
- 102000004190 Enzymes Human genes 0.000 claims abstract description 20
- 108090000790 Enzymes Proteins 0.000 claims abstract description 20
- 239000003381 stabilizer Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 25
- 150000001875 compounds Chemical class 0.000 claims description 11
- 108010009736 Protein Hydrolysates Proteins 0.000 claims description 9
- JYTUSYBCFIZPBE-UHFFFAOYSA-N Maltobionic acid Natural products OC(=O)C(O)C(O)C(C(O)CO)OC1OC(CO)C(O)C(O)C1O JYTUSYBCFIZPBE-UHFFFAOYSA-N 0.000 claims description 7
- 239000002775 capsule Substances 0.000 claims description 4
- JYTUSYBCFIZPBE-AMTLMPIISA-N lactobionic acid Chemical compound OC(=O)[C@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O JYTUSYBCFIZPBE-AMTLMPIISA-N 0.000 claims 1
- 229940088598 enzyme Drugs 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 9
- JYTUSYBCFIZPBE-ZNLUKOTNSA-N cellobionic acid Chemical compound OC(=O)[C@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O JYTUSYBCFIZPBE-ZNLUKOTNSA-N 0.000 description 8
- 239000004615 ingredient Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 102000013142 Amylases Human genes 0.000 description 6
- 108010065511 Amylases Proteins 0.000 description 6
- 108091005804 Peptidases Proteins 0.000 description 6
- 239000004365 Protease Substances 0.000 description 6
- 235000019418 amylase Nutrition 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 239000004382 Amylase Substances 0.000 description 5
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 125000000837 carbohydrate group Chemical group 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 101100345345 Arabidopsis thaliana MGD1 gene Proteins 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- OHOTVSOGTVKXEL-UHFFFAOYSA-K trisodium;2-[bis(carboxylatomethyl)amino]propanoate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C(C)N(CC([O-])=O)CC([O-])=O OHOTVSOGTVKXEL-UHFFFAOYSA-K 0.000 description 3
- ORUDEUCNYHCHPB-OUUBHVDSSA-N (2r,3s,4s,5r,6r)-2-(hydroxymethyl)-6-tetradecoxyoxane-3,4,5-triol Chemical compound CCCCCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O ORUDEUCNYHCHPB-OUUBHVDSSA-N 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical group CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 108010020132 microbial serine proteinases Proteins 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 1
- OXEDXHIBHVMDST-UHFFFAOYSA-N 12Z-octadecenoic acid Natural products CCCCCC=CCCCCCCCCCCC(O)=O OXEDXHIBHVMDST-UHFFFAOYSA-N 0.000 description 1
- RSOOXPFMVKSKNN-UHFFFAOYSA-N 2-acetyloxyethyl acetate;amino acetate Chemical compound CC(=O)ON.CC(=O)ON.CC(=O)OCCOC(C)=O RSOOXPFMVKSKNN-UHFFFAOYSA-N 0.000 description 1
- 102100032487 Beta-mannosidase Human genes 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 108010084185 Cellulases Proteins 0.000 description 1
- 102000005575 Cellulases Human genes 0.000 description 1
- 239000004367 Lipase Substances 0.000 description 1
- 102000004882 Lipase Human genes 0.000 description 1
- 108090001060 Lipase Proteins 0.000 description 1
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 description 1
- 102000035195 Peptidases Human genes 0.000 description 1
- 101710118538 Protease Proteins 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 239000004141 Sodium laurylsulphate Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- PDIZYYQQWUOPPK-UHFFFAOYSA-N acetic acid;2-(methylamino)acetic acid Chemical compound CC(O)=O.CC(O)=O.CNCC(O)=O PDIZYYQQWUOPPK-UHFFFAOYSA-N 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 102000004139 alpha-Amylases Human genes 0.000 description 1
- 108090000637 alpha-Amylases Proteins 0.000 description 1
- 229940024171 alpha-amylase Drugs 0.000 description 1
- 229940025131 amylases Drugs 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 108010041102 azocasein Proteins 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 108010055059 beta-Mannosidase Proteins 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000007071 enzymatic hydrolysis Effects 0.000 description 1
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 description 1
- SFNALCNOMXIBKG-UHFFFAOYSA-N ethylene glycol monododecyl ether Chemical compound CCCCCCCCCCCCOCCO SFNALCNOMXIBKG-UHFFFAOYSA-N 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 235000019421 lipase Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Substances CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- WFRKJMRGXGWHBM-UHFFFAOYSA-M sodium;octyl sulfate Chemical compound [Na+].CCCCCCCCOS([O-])(=O)=O WFRKJMRGXGWHBM-UHFFFAOYSA-M 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
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
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/221—Mono, di- or trisaccharides or derivatives 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
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
-
- 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
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
- C11D3/223—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin oxidised
-
- 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
- C11D3/38663—Stabilised liquid enzyme compositions
Definitions
- the invention relates to a use of a chelating agent containing a starch hydrolysate that has been selectively oxidised at the C1 location in a detergent composition.
- WO-A-2010/046070 discloses that starch hydrolysates that contain compounds with a degree of polymerisation (DP) of 2 to 4, whereby the said starch hydrolysates have been selectively oxidized at the C1 location of the carbohydrate moieties, can be used as chelating agents.
- a starch hydrolysate that has been selectively oxidized at the C1 location of the carbohydrate moieties is herein also referred to as a 'C1-oxidised starch hydrolysate'.
- the said objective is achieved in that the C1-oxidised starch hydrolysate is used as enzyme stabilising agent in a detergent composition.
- one component of a detergent composition can fulfil at least two functions at the same time in a detergent composition; namely, a function as chelating agent, i.e. a solubilising agent for sparingly soluble metal ions, and a function as stabiliser of enzymes.
- the present invention can thus advantageously allow a reduction of the amount of enzyme-stabilising agents other than C1-oxidised starch hydrolysates in a detergent composition.
- the present invention relates to a further use of a chelating agent.
- chelating agent has its usual meaning of a compound that can form a soluble complex with certain metal ions, thereby preventing the metal ions to form precipitates or scale.
- chelating agents are normally used for the purpose of forming soluble complexes with calcium ions and/or transition metal ions.
- the chelating agent of the present invention contains a starch hydrolysate that has been selectively oxidised at the C1 location.
- starch hydrolysate has the usual meaning of a starch that has been subjected to a hydrolysis treatment in order to reduce the degree of polymerisation (DP) of the carbohydrate moieties in the starch.
- DP degree of polymerisation
- Known examples of such treatments are acid hydrolysis and enzymatic hydrolysis.
- the hydrolysis treatment on the starch is done such that the resulting starch hydrolysate contains at least 5 wt.%, calculated on the total dry matter of the starch hydrolysate, of compounds having a DP of 2, 3, or 4.
- the starch hydrolysate contains at least 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, or even at least 85 or 90 wt.%, calculated on the total dry matter of the starch hydrolysate, of compounds having a DP of 2, 3, or 4.
- a starch hydrolysate is used that has been selectively oxidised at the C1 location of the carbohydrate moieties.
- a selective oxidation is as such known from for example WO-A-2004/099114 . It is preferred that the selective oxidation is done such that at least 75, 80, 85, 90, or 95%, or even essentially all of the available target groups are oxidised.
- the C1-oxidised starch hydrolysate contains at least 5 wt.% of maltobionic acid; more preferably, the C1-oxidised starch hydrolysate contains at least 10, 15, 20, 25, 30, or even at least 35 or 40 wt.%, calculated on the total dry matter of the C1-oxidised starch hydrolysate, of maltobionic acid.
- maltobionic acid refers to the compound itself, as well as to salts thereof such as sodium maltobionate.
- the chelating agent of the invention consists essentially of a starch hydrolysate that has been selectively oxidised at the C1 location.
- the terms 'essentially', 'consist(ing) essentially of, 'essentially all' and equivalents have, unless noted otherwise, in relation to a composition or a process step the usual meaning that deviations in the composition or process step may occur, but only to such an extent that the essential characteristics and effects of the composition or process step are not materially affected by such deviations.
- the chelating agent of the present invention is used as a component in a detergent composition.
- any type of detergent composition is suitable; it should however be a detergent composition that has, besides having one or more surfactants as components in order to generate the basic detergent functionality, at least one enzyme as a component.
- Typical examples of enzymes are proteases, amylases, lipases, cellulases, and mannases.
- Such detergent compositions are widely known, a.o. for the cleaning of textiles.
- the detergent composition may be in the form of for example a powder, a tablet, a gel capsule, or in liquid form; preferably, the detergent composition is in liquid form or in the form of a gel capsule.
- the chelating agent containing or consisting essentially of a C1-oxidised starch hydrolysate is not only used in its chelating function, but also as enzyme-stabilising agent. It is known that the functionality of enzymes in detergents can reduce over time. It has therefore already in the past been an object of investigation to find ways to stabilise the enzymes.
- One popular method of stabilising enzymes involves the use of boron-containing compounds such as boric acid or disodiumtetraborate ('borax').
- 'borax' disodiumtetraborate
- the use according to the present invention therefore, achieves the objective of finding alternatives to boron-containing compounds.
- the objective is achieved by using a component which can at the same time exercise a chelating function.
- a component which can at the same time exercise a chelating function.
- This combination is surprising because it is known that most of the currently used enzymes in detergent compositions require the presence of calcium ions in order to function and be stable; thus, a chelating agent may not be of such a nature that too many calcium ions are bound by it under the conditions prevailing in a detergent composition - either as such or when in use.
- the use of the C1-oxidised starch hydrolysate strikes an advantageous balance between chelating properties and enzyme-stabilizing properties. As the person skilled in the art knows, it may be favourable in this respect to consciously add some amount of calcium in ionic form to the detergent composition.
- the amount of the chelating agent containing the C1-oxidised starch hydrolysate in the detergent composition may vary within wide limits.
- the detergent composition contains at least 0.25 wt% of the chelating agent containing the C1-oxidised starch hydrolysate, as calculated on the total of the detergent composition, including any water present. In this way, the functionality of the C1-oxidised starch hydrolysate can take noticeable effect. More preferably, the detergent composition contains at least 0.50, 0.75, or 1.00 wt.% of the chelating agent containing the C1-oxidised starch hydrolysate.
- the detergent composition contains at most 6 wt.% of the chelating agent containing the C1-oxidised starch hydrolysate, more preferably at most 5.50, 5.00, 4.50, 4.00, or even at most 3.50 wt.% of the chelating agent containing C1-oxidised starch hydrolysate.
- the weight ratio between the chelating agent containing the C1-oxidised starch hydrolysate and the sum of the enzymes in the detergent composition varies between 0.25:1 and 4:1, preferably between 0.50:1 and 2:1.
- the chelating agent consists essentially of the C1-oxidised starch hydrolysate. It is furthermore preferred that the C1-oxidised starch hydrolysate contains compounds having DP of 2, 3, and 4 in amounts as indicated above; more preferably, that the C1-oxidised starch hydrolysate contains maltobionic acid in the amounts as indicated above.
- the maltobionic acid may be present as such, or in a corresponding ionic form such as for example sodium maltobionate.
- the present invention furthermore relates to an enzyme-containing detergent composition, containing a starch hydrolysate that has been selectively oxidised at the C1 location, and at most 5 wt.% of further chelating agents and/or enzyme-stabilizing agents, calculated on the detergent composition as a whole. Due to the chelating action of the C1-oxidised starch hydrolysate, the need to use any further chelating agents can be reduced. Similarly, due to the enzyme-stabilising action of the C1-oxidised starch hydrolysate, the need to use any further enzyme-stabilising agents can be reduced.
- the detergent composition contains at most 4.0, 3.0, 2.0, 1.0, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, or even at most 0.1 wt. % of further chelating agents and/or enzyme-stabilising agents.
- the detergent composition according to the invention contains essentially no further chelating agents or enzyme-stabilising agents.
- the amount and preferred embodiments of the C1-oxidised starch hydrolysate in the detergent composition according to the invention are as indicated above for the method of the present invention.
- the detergent composition according to the invention is in liquid form or in the form of gel capsules.
- liquid detergent I The effect of a C1-oxidised starch hydrolysate on the stability of enzymes in a liquid detergent composition was evaluated.
- Two liquid detergent formulations were used, named liquid detergent I and liquid detergent II.
- liquid detergent I a typical formulation for a concentrated eco-style laundry liquid detergent, is given in Table 1.
- Table 1 Ingredient Wt.% Demin water 19.30 Chelating agent 1.50 Ethanol 3.33 Sodium n-Octyl Sulphate (Texapon 842) 2.85 Sodium Lauryl Sulphate (Standapol WAQ-LCK) 45.07 Lauryl/Myristyl Glucoside 17.12 Oleic acid (Emersol 622) 3.33 Potassium hydroxide 1.60 Sodium bicarbonate 1.90 Protease (Savinase 16L Ultra) 1.00 Amylase (Stainzyme 12L) 1.00
- Liquid detergent I was prepared by first heating the water to 40°C; then, all ingredients except the protease and the amylase were added to the aqueous phase and mixed; this was done in the order of their appearance in Table 1. The so-prepared detergent was cooled down to room temperature, after which the enzymes were added. The pH was adjusted to 8.5 with citric acid/sodium hydroxide; this completed the preparation of liquid detergent I.
- the type of chelating agent added can be found in Table 3 below.
- liquid detergent II a typical formulation for a regular heavy duty laundry liquid detergent
- Table 2 Phase Ingredient Wt.% 1 Demin water 45.44 1 Sodium hydroxide 3.23 1 Palm kernel fatty acid (Endenor K1218) 8.54 1 Propylene glycol 4.74 2 Sodium Laureth Sulphate 2EO (Texapon N 70) 13.57 2 Lauryl/Myristyl Glucoside (Glucopon 600 CSUP) 7.59 2 Fatty alcohol 7EO (Dehydol LT 7) 5.69 3 Chelating agent 1.50 3 Citric acid 2.85 3 Ethanol 2.85 4 Protease (Savinase 16L Ultra) 1.00 4 Amylase (Stainzyme 12L) 1.00
- Liquid detergent II was prepared by first combining the Phase 1 ingredients, followed by heating to 70°C, mixing during 15 minutes, and cooling to 40°C. The Phase 2 ingredients were then added, followed by mixing. Subsequently, the Phase 3 ingredients were mixed in, followed by cooling down to room temperature and the adding of the Phase 4 ingredients (i.e. the enzymes). The pH was adjusted to 8.5 with citric acid/sodium hydroxide; this completed the preparation of liquid detergent II.
- the C1-oxidised starch hydrolysate as used in Examples 1 and 2 was prepared from a starch hydrolysate having a high maltose content (75 wt.% on total dry matter), according to the method of WO-A-2004/099114 .
- the starch hydrolysate was essentially fully converted, and it then contained about 85 wt.% (on total dry matter) of C1-oxidised compounds having a DP of 2, 3, or 4, of which the large majority (75 wt.% on total dry matter) was maltobionic acid - as such and/or in the corresponding sodium maltobionate form.
- the stability of the enzymes was determined by utilising the known test procedure for detergency enzymes as made available by Megazyme as 'Measurement of endo-Protease and ⁇ -Amylase in Biological Washing Powders & Liquids using Azo-Casein and Amylazyme Tablets' - document code BWPL 11/03, a document freely available for download from www.megazyme.com in at least August 2012.
- Samples of the liquid detergent compositions of the Examples 1 - 2 and the Comparative Experiments A - D were measured at four moments in time: upon preparation, after 14 days, after 1 month, and after 2 months.
- Examples 1 and 2 clearly show that in Examples 1 and 2 the enzymes are significantly more stable over time as compared to the enzymes in Comparative Examples A - D, which contained chelating agents not according to the invention that were evaluated, namely MGDA (methylglycine diacetate) and EDTA (ethylene diamino tetraacetate).
- MGDA methylglycine diacetate
- EDTA ethylene diamino tetraacetate
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12005684.1A EP2692843A1 (de) | 2012-08-03 | 2012-08-03 | Verwendung von C1-oxidierten Stärkehydrolysaten |
PCT/EP2013/002252 WO2014019680A1 (en) | 2012-08-03 | 2013-07-30 | Use of c1-oxidised starch hydrolysates |
EP13762399.7A EP2880145A1 (de) | 2012-08-03 | 2013-07-30 | Verwendung von c1-oxidierten stärkehydrolysaten |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12005684.1A EP2692843A1 (de) | 2012-08-03 | 2012-08-03 | Verwendung von C1-oxidierten Stärkehydrolysaten |
Publications (1)
Publication Number | Publication Date |
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EP2692843A1 true EP2692843A1 (de) | 2014-02-05 |
Family
ID=49170648
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12005684.1A Ceased EP2692843A1 (de) | 2012-08-03 | 2012-08-03 | Verwendung von C1-oxidierten Stärkehydrolysaten |
EP13762399.7A Withdrawn EP2880145A1 (de) | 2012-08-03 | 2013-07-30 | Verwendung von c1-oxidierten stärkehydrolysaten |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13762399.7A Withdrawn EP2880145A1 (de) | 2012-08-03 | 2013-07-30 | Verwendung von c1-oxidierten stärkehydrolysaten |
Country Status (2)
Country | Link |
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EP (2) | EP2692843A1 (de) |
WO (1) | WO2014019680A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015070119A1 (en) | 2013-11-11 | 2015-05-14 | Ecolab Usa Inc. | Multiuse, enzymatic detergent and methods of stabilizing a use solution |
CA2929570C (en) | 2013-11-11 | 2021-11-30 | Ecolab Usa Inc. | High alkaline warewash detergent with enhanced scale control and soil dispersion |
EP3797146A1 (de) | 2018-05-23 | 2021-03-31 | Dow Global Technologies, LLC | Wasserfreie geschirrspülmittelformulierung |
BE1027322B1 (fr) * | 2019-05-29 | 2021-01-12 | Realco | Composition nettoyante et dégraissante pour le traitement de surfaces dures |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69229301T2 (de) * | 1991-04-22 | 1999-12-09 | Roquette Freres, Lestrem | Zeolitharmes oder zeolithfreies Waschmittel |
US6187055B1 (en) * | 1996-01-03 | 2001-02-13 | Henkel Kommanditgesellschaft Auf Aktien | Washing agents with specific oxidized oligosaccharides |
WO2001096519A1 (en) * | 2000-06-15 | 2001-12-20 | Unilever N.V. | Liquid detergent composition |
DE10112136A1 (de) * | 2001-03-14 | 2002-10-02 | Henkel Kgaa | Verhinderung von Textilschäden beim Waschen |
WO2004099114A1 (de) | 2003-05-05 | 2004-11-18 | Südzucker Aktiengesellschaft Mannheim/Ochsenfurt | Verfahren zur selektiven kohlenhydrat-oxidation unter verwendung geträgerter gold-katalysatoren |
WO2010046070A1 (de) | 2008-10-20 | 2010-04-29 | Südzucker Aktiengesellschaft Mannheim/Ochsenfurt | Solubilisierungsmittel für metallionen |
-
2012
- 2012-08-03 EP EP12005684.1A patent/EP2692843A1/de not_active Ceased
-
2013
- 2013-07-30 WO PCT/EP2013/002252 patent/WO2014019680A1/en active Application Filing
- 2013-07-30 EP EP13762399.7A patent/EP2880145A1/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69229301T2 (de) * | 1991-04-22 | 1999-12-09 | Roquette Freres, Lestrem | Zeolitharmes oder zeolithfreies Waschmittel |
US6187055B1 (en) * | 1996-01-03 | 2001-02-13 | Henkel Kommanditgesellschaft Auf Aktien | Washing agents with specific oxidized oligosaccharides |
WO2001096519A1 (en) * | 2000-06-15 | 2001-12-20 | Unilever N.V. | Liquid detergent composition |
DE10112136A1 (de) * | 2001-03-14 | 2002-10-02 | Henkel Kgaa | Verhinderung von Textilschäden beim Waschen |
WO2004099114A1 (de) | 2003-05-05 | 2004-11-18 | Südzucker Aktiengesellschaft Mannheim/Ochsenfurt | Verfahren zur selektiven kohlenhydrat-oxidation unter verwendung geträgerter gold-katalysatoren |
WO2010046070A1 (de) | 2008-10-20 | 2010-04-29 | Südzucker Aktiengesellschaft Mannheim/Ochsenfurt | Solubilisierungsmittel für metallionen |
Also Published As
Publication number | Publication date |
---|---|
EP2880145A1 (de) | 2015-06-10 |
WO2014019680A1 (en) | 2014-02-06 |
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