Compositions containing one or more poly alpha-1,3-glucan ether compounds
Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with an organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
1. A composition comprising (a) an amylase or protease, and (b) a poly alpha-1,3-glucan compound represented by the structure:
wherein
(i) n is at least 6,
(ii) each R is independently H or an organic group, and at least one R is an organic group,
(iii) the compound has a degree of substitution of about 0.05 to about 3.0 by the organic group, and
(iv) at least 90% of the glycosidic linkages of the poly alpha-1,3-glucan compound are alpha-1,3 glycosidic linkages.
2. The composition of claim 1 , wherein the organic group is selected from the group consisting of carboxy alkyl, hydroxy alkyl, and alkyl.
3. The composition of claim 2 , wherein the organic group is selected from the group consisting of carboxymethyl, hydroxypropyl, dihydroxypropyl, hydroxyethyl, methyl, and ethyl.
4. The composition of claim 2 , wherein the organic group is carboxymethyl.
5. The composition of claim 1 , wherein the composition is in the form of a personal care product, household product, or industrial product.
6. The composition of claim 5 , wherein the composition is a fabric care product.
7. The composition of claim 1 , wherein the composition is an aqueous composition.
8. The composition of claim 7 , wherein the composition has a viscosity of at least about 10 centipoise.
9. A method for preparing an aqueous composition, the method comprising:
contacting an aqueous composition with a poly alpha-1,3-glucan compound represented by the structure:
wherein
(i) n is at least 6, and at least one R is an organic group,
(ii) each R is independently H or an organic group,
(iii) the compound has a degree of substitution of about 0.05 to about 3.0 by the organic group, and
(iv) at least 90% of the glycosidic linkages of the poly alpha-1,3-glucan compound are alpha-1,3 glycosidic linkages;
and wherein the aqueous composition prepared in said method comprises an amylase or protease.
10. A method of treating a material, said method comprising:
contacting the material with a composition according to claim 7 .
11. The method of claim 10 , wherein the material comprises fabric.
12. The method of claim 11 , wherein the fabric comprises (i) natural fiber, (ii) synthetic fiber, or a combination of both (i) and (ii).
13. The method of claim 11 , wherein the poly alpha-1,3-glucan compound adsorbs to the fabric.
14. The composition of claim 1 , wherein at least 95% of the glycosidic linkages of the poly alpha-1,3-glucan compound are alpha-1,3 glycosidic linkages.
15. The composition of claim 1 , wherein the poly alpha-1,3-glucan compound has one or more of the same organic group.
16. The composition of claim 1 , wherein the poly alpha-1,3-glucan compound has two or more different organic groups.
17. The composition of claim 1 , wherein the organic group is cationic.
18. The composition of claim 1 , wherein the composition comprises a surfactant.
19. The composition of claim 1 , wherein the composition comprises said amylase.
20. The composition of claim 1 , wherein the composition comprises said protease.
21. The method of claim 10 , wherein the material is a pot, pan, baking dish, or tableware.
22. The method of claim 21 , wherein the material is tableware selected from the group consisting of dishes, glasses, utensils, and flatware made from ceramic material, china, metal, glass, or plastic.
23. The composition of claim 5 , wherein the composition is a dishwashing detergent composition.
24. The composition of claim 23 , wherein the dishwashing detergent composition is an automatic dishwashing detergent composition.
25. The composition of claim 23 , wherein the dishwashing detergent composition is a hand washing dish detergent composition.