WO2014019680A1 - Use of c1-oxidised starch hydrolysates - Google Patents
Use of c1-oxidised starch hydrolysates Download PDFInfo
- Publication number
- WO2014019680A1 WO2014019680A1 PCT/EP2013/002252 EP2013002252W WO2014019680A1 WO 2014019680 A1 WO2014019680 A1 WO 2014019680A1 EP 2013002252 W EP2013002252 W EP 2013002252W WO 2014019680 A1 WO2014019680 A1 WO 2014019680A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- starch hydrolysate
- detergent composition
- oxidised
- enzyme
- location
- Prior art date
Links
- 229920002472 Starch Polymers 0.000 title claims abstract description 52
- 235000019698 starch Nutrition 0.000 title claims abstract description 52
- 239000008107 starch Substances 0.000 title claims abstract description 52
- 239000003599 detergent Substances 0.000 claims abstract description 56
- 239000000203 mixture Substances 0.000 claims abstract description 44
- 239000000413 hydrolysate Substances 0.000 claims abstract description 35
- 239000002738 chelating agent Substances 0.000 claims abstract description 30
- 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 24
- 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
- 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
- 238000000034 method Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 5
- 239000004382 Amylase Substances 0.000 description 4
- 102000013142 Amylases Human genes 0.000 description 4
- 108010065511 Amylases Proteins 0.000 description 4
- 108091005804 Peptidases Proteins 0.000 description 4
- 239000004365 Protease Substances 0.000 description 4
- 235000019418 amylase Nutrition 0.000 description 4
- 125000000837 carbohydrate group Chemical group 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 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
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 230000009471 action Effects 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 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
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
- 101100345345 Arabidopsis thaliana MGD1 gene Proteins 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
- 102000005575 Cellulases Human genes 0.000 description 1
- 108010084185 Cellulases Proteins 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
- 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
- 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
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007071 enzymatic hydrolysis Effects 0.000 description 1
- 238000006047 enzymatic hydrolysis reaction Methods 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
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 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
- 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 1
- 238000005406 washing Methods 0.000 description 1
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
- C11D3/20—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
Abstract
The invention relates to the use of a chelating agent containing a starch hydrolysate that has been selectively oxidised at the C1 location as enzyme-stabilizing agent in a detergent composition. The invention further relates to an enzyme-containing detergent composition, containing a starch hydrolysate that has been selectively oxidised at the C1 location, and at most 1 wt.% of further chelating agents and/or further enzyme-stabilizing agents.
Description
USE OF C1 -OXIDISED STARCH HYDROLYSATES
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'.
It is the objective of the invention to provide a further use of the 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.
It is an advantage of the present invention that 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. As meant herein, the term 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. When used in detergent
compositions, 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. As meant herein, the term 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. Known examples of such treatments are acid hydrolysis and enzymatic hydrolysis. In a main embodiment of the invention, 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. More preferably, 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.
According to the invention, a starch hydrolysate is used that has been selectively oxidised at the C1 location of the carbohydrate moieties. Such 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.
In a preferred embodiment, 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. As used herein, the term maltobionic acid refers to the compound itself, as well as to salts thereof such as sodium maltobionate.
It is furthermore preferred that the chelating agent of the invention consists essentially of a starch hydrolysate that has been selectively oxidised at the C1 location.
As used herein, 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. In principle, according to the invention 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. According to the invention, 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'). However, there is a desire in industry to avoid the use of boron- containing compounds. The use according to the present invention, therefore, achieves the objective of finding alternatives to boron-containing compounds. Advantageously, the objective is achieved by using 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.
According to the invention, the use of the C -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.
Preferably, 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. It is preferred that 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. In a related preferred embodiment, 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.
In the embodiments indicating the amount of chelating agent in the detergent composition, it is preferred that 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. Preferably, the detergent composition contains at most 4.0, 3.0, 2.0, 1.0, 0.9, 0.8, .07, 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. In one preferred embodiment, 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.
In a main preferred embodiment, the detergent composition according to the invention is in liquid form or in the form of gel capsules.
The invention will be illustrated by means of the following Example and Comparative Experiments, without being limited thereto.
In the Figures:
• Figure 1 shows the evaluation of amylase stability in a first liquid
detergent;
· Figure 2 shows the evaluation of protease stability in a first liquid
detergent;
• Figure 3 shows the evaluation of amylase stability in a second liquid detergent;
• Figure 4 shows the evaluation of protease stability in a second liquid detergent.
Examples and Comparative Experiments
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
The composition of liquid detergent I, a typical formulation for a concentrated eco-style laundry liquid detergent, is given in Table 1 .
Table 1
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
The composition of liquid detergent II, a typical formulation for a regular heavy duty laundry liquid detergent, is given in Table 2.
Table 2
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 type of chelating agent added can be found in Table 3 below.
Table 3
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.
Sample evaluation
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 a-Amylase in Biological Washing Powders & Liquids using Azo-Casein and Amylazyme Tablets' - document code BWPL 1 1/03, 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.
The results of the stability evaluation is shown in Figures 1 - 4. In the Figures, an absorbance factor is given that was calculated from optical transmission measurements done as prescribed in the Megazyme method. The higher the factor, the higher the stability of the enzyme is.
The figures 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).
Claims
Use of a chelating agent containing a starch hydrolysate that has been selectively oxidised at the C1 location as enzyme-stabilizing agent in a detergent composition.
Use according to claim 1 , wherein the starch hydrolysate that has been selectively oxidised at the C1 location 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.
Use according to claim 2, wherein the starch hydrolysate that has been selectively oxidised at the C1 location contains at least 5 wt.%, calculated on the total dry matter of the starch hydrolysate, of maltobionic acid.
Enzyme-containing detergent composition, containing a starch hydrolysate that has been selectively oxidised at the C1 location, and at most 1 wt.% of further chelating agents and/or further enzyme- stabilizing agents.
5. Detergent composition according to claim 4, wherein the detergent composition is in liquid form or in the form of a gel capsule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13762399.7A EP2880145A1 (en) | 2012-08-03 | 2013-07-30 | Use of c1-oxidised starch hydrolysates |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12005684.1A EP2692843A1 (en) | 2012-08-03 | 2012-08-03 | Use of C1-oxidised starch hydrolysates |
| EP12005684.1 | 2012-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014019680A1 true WO2014019680A1 (en) | 2014-02-06 |
Family
ID=49170648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2013/002252 WO2014019680A1 (en) | 2012-08-03 | 2013-07-30 | Use of c1-oxidised starch hydrolysates |
Country Status (2)
| Country | Link |
|---|---|
| EP (2) | EP2692843A1 (en) |
| WO (1) | WO2014019680A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9353335B2 (en) | 2013-11-11 | 2016-05-31 | Ecolab Usa Inc. | High alkaline warewash detergent with enhanced scale control and soil dispersion |
| US10179892B2 (en) | 2013-11-11 | 2019-01-15 | Ecolab Usa Inc. | Multiuse, enzymatic detergent and methods of stabilizing a use solution |
| BE1027322B1 (en) * | 2019-05-29 | 2021-01-12 | Realco | Cleaning and degreasing composition for the treatment of hard surfaces |
| US11680227B2 (en) | 2018-05-23 | 2023-06-20 | Dow Global Technologies Llc | Anhydrous autodish formulation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69229301T2 (en) * | 1991-04-22 | 1999-12-09 | Roquette Freres | Low-zeolite or zeolite-free detergent |
| 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 (en) * | 2001-03-14 | 2002-10-02 | Henkel Kgaa | Use of oxidized dextrin derivatives in detergents to reduce textile damage during washing |
| WO2004099114A1 (en) | 2003-05-05 | 2004-11-18 | Südzucker Aktiengesellschaft Mannheim/Ochsenfurt | Method for selective carbohydrate oxidation using supported gold catalysts |
| WO2010046070A1 (en) | 2008-10-20 | 2010-04-29 | Südzucker Aktiengesellschaft Mannheim/Ochsenfurt | Solubilizer for metal ions |
-
2012
- 2012-08-03 EP EP12005684.1A patent/EP2692843A1/en 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/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69229301T2 (en) * | 1991-04-22 | 1999-12-09 | Roquette Freres | Low-zeolite or zeolite-free detergent |
| 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 (en) * | 2001-03-14 | 2002-10-02 | Henkel Kgaa | Use of oxidized dextrin derivatives in detergents to reduce textile damage during washing |
| WO2004099114A1 (en) | 2003-05-05 | 2004-11-18 | Südzucker Aktiengesellschaft Mannheim/Ochsenfurt | Method for selective carbohydrate oxidation using supported gold catalysts |
| WO2010046070A1 (en) | 2008-10-20 | 2010-04-29 | Südzucker Aktiengesellschaft Mannheim/Ochsenfurt | Solubilizer for metal ions |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9353335B2 (en) | 2013-11-11 | 2016-05-31 | Ecolab Usa Inc. | High alkaline warewash detergent with enhanced scale control and soil dispersion |
| US9683203B2 (en) | 2013-11-11 | 2017-06-20 | Ecolab Usa Inc. | High alkaline warewash detergent with enhanced scale control and soil dispersion |
| US10179892B2 (en) | 2013-11-11 | 2019-01-15 | Ecolab Usa Inc. | Multiuse, enzymatic detergent and methods of stabilizing a use solution |
| US10316272B2 (en) | 2013-11-11 | 2019-06-11 | Ecolab Usa Inc. | High alkaline warewash detergent with enhanced scale control and soil dispersion |
| US10597613B2 (en) | 2013-11-11 | 2020-03-24 | Ecolab Usa Inc. | Multiuse, enzymatic detergent and methods of stabilizing a use solution |
| US10745651B2 (en) | 2013-11-11 | 2020-08-18 | Ecolab Usa Inc. | High alkaline warewash detergent with enhanced scale control and soil dispersion |
| US11339354B2 (en) | 2013-11-11 | 2022-05-24 | Ecolab Usa Inc. | High alkaline warewash detergent with enhanced scale control and soil dispersion |
| US11920109B2 (en) | 2013-11-11 | 2024-03-05 | Ecolab Usa Inc. | High alkaline warewash detergent with enhanced scale control and soil dispersion |
| US11680227B2 (en) | 2018-05-23 | 2023-06-20 | Dow Global Technologies Llc | Anhydrous autodish formulation |
| BE1027322B1 (en) * | 2019-05-29 | 2021-01-12 | Realco | Cleaning and degreasing composition for the treatment of hard surfaces |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2692843A1 (en) | 2014-02-05 |
| EP2880145A1 (en) | 2015-06-10 |
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