Oxidized dextran

Patent metadata

Field	Value
Publication number	US-11535683-B2
Application number	US-202017029516-A
Country	US
Kind code	B2
Filing date	Sep 23, 2020
Priority date	Apr 3, 2015
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

Compositions comprising oxidized dextran compounds are disclosed herein. Oxidized dextran compounds are produced by contacting dextran under aqueous conditions with at least one N-oxoammonium salt, at least one periodate compound, and/or at least one peroxide compound.

First claim

What is claimed is:

1. A composition comprising an oxidized dextran compound, wherein the oxidized dextran compound is produced by contacting dextran under aqueous conditions with at least one N-oxoammonium salt, at least one periodate compound, and/or at least one peroxide compound, wherein the dextran is a product of an isolated glucosyltransferase enzyme comprising an amino acid sequence selected from one with at least 90% identity to SEQ ID NO:1 or SEQ ID NO:2.

2. The composition of claim 1 , wherein the dextran is contacted with the periodate compound.

3. The composition of claim 1 , wherein the dextran is first contacted with the periodate compound, and then contacted with the N-oxoammonium salt.

4. The composition of claim 1 , wherein the N-oxoammonium salt comprises a TEMPO oxoammonium salt.

5. The composition of claim 1 , wherein the composition is a personal care product, industrial product, pharmaceutical product, or food product.

6. The composition of claim 1 , wherein the composition is a household product.

7. The composition of claim 1 , wherein the composition is a detergent composition.

8. The composition of claim 1 , wherein the composition is a fabric care product.

9. The composition of claim 1 , wherein the composition is a dishwashing detergent composition.

10. The composition of claim 9 , wherein the dishwashing detergent composition is an automatic dishwashing detergent composition.

11. The composition of claim 9 , wherein the dishwashing detergent composition is a hand washing dish detergent composition.

12. The composition of claim 1 , wherein the isolated glucosyltransferase enzyme comprises an amino acid sequence selected from one with at least 95% identity to SEQ ID NO:1 or SEQ ID NO:2.

13. The composition of claim 1 , wherein the composition is an aqueous composition.

14. A method of treating a material, said method comprising:
contacting the material with a composition according to claim 13 .

15. The method of claim 14 , wherein the material comprises fabric.

16. The method of claim 15 , wherein the fabric comprises (i) natural fiber, (ii) synthetic fiber, or a combination of both (i) and (ii).

17. The method of claim 14 , wherein the material is a pot, pan, baking dish, or tableware.

18. The method of claim 17 , wherein the material is tableware selected from the group consisting of dishes, glasses, utensils, and flatware, wherein the flatware is made from ceramic material, china, metal, glass, or plastic.

19. A method of producing an oxidized dextran compound, the method comprising:
contacting dextran under aqueous conditions with at least one N-oxoammonium salt, at least one periodate compound, and/or at least one peroxide compound, wherein the dextran is a product of an isolated glucosyltransferase enzyme comprising an amino acid sequence selected from one with at least 90% identity to SEQ ID NO:1 or SEQ ID NO:2;
wherein the dextran is oxidized by the N-oxoammonium salt, periodate compound, and/or peroxide compound thereby producing the oxidized dextran compound.

20. A method of increasing the builder capacity and/or anti-redeposition capacity of an aqueous composition, wherein the method comprises:
contacting an oxidized dextran compound according to claim 1 with the aqueous composition, wherein the builder and/or anti-redeposition capacity of the aqueous composition is increased by the oxidized dextran compound compared to the builder and/or anti-redeposition capacity of the aqueous composition before the contacting step.

21. The method of claim 19 , wherein the isolated glucosyltransferase enzyme comprises an amino acid sequence selected from one with at least 95% identity to SEQ ID NO:1 or SEQ ID NO:2.

Assignees

• Nutrition & Biosciences Usa 4 Inc

Inventors

• Paullin Jayme L
• Nambiar Rakesh

Classifications

• A23L29/273 Primary

  Dextran; Polysaccharides produced by leuconostoc · CPC title

• C08L5/02

  Dextran; Derivatives thereof · CPC title

• C08B37/0021 Primary

  Dextran, i.e. (alpha-1,4)-D-glucan; Derivatives thereof, e.g. Sephadex, i.e. crosslinked dextran · CPC title

• C08B31/18

  Oxidised starch · CPC title

• A23V2002/00

  Food compositions, function of food ingredients or processes for food or foodstuffs · CPC title