Enzymatic synthesis of soluble glucan fiber

Patent metadata

Field	Value
Publication number	US-10907185-B2
Application number	US-201515313321-A
Country	US
Kind code	B2
Filing date	May 22, 2015
Priority date	May 29, 2014
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

An enzymatically produced soluble α-glucan fiber composition is provided suitable for use as a digestion resistant fiber in food and feed applications. The soluble α-glucan fiber composition can be blended with one or more additional food ingredients to produce fiber-containing compositions. Methods for the production and use of compositions comprising the soluble α-glucan fiber are also provided.

First claim

What is claimed is:

1. A soluble α-glucan fiber composition, said soluble α-glucan fiber composition comprising:
(a) an α-(1,6) linkage consisting of at least 95% α-(1,6) glycosidic linkages;
(b) 1% or less α-(1,3) glycosidic linkages;
(c) less than 2% α-(1,3,6) glycosidic linkages; and
(d) less than 1.5% α-(1,4) glycosidic linkages; and said soluble α-glucan fiber has
(e) a weight average molecular weight of less than 20000 Daltons;
(f) a viscosity of less than 0.25 Pascal second (Pa·s) at 12 wt % in water at 20° C.;
(g) a dextrose equivalence (DE) in the range of 1 to 30;
(h) a digestibility of less than 12% as measured by the Association of Analytical Communities (AOAC) method 2009.01;
(i) a solubility of at least 20% (w/w) in pH 7 water at 25° C.; and
(j) a polydispersity index of less than 5.

2. A carbohydrate composition comprising: 0.01 to 99 wt % (dry solids basis) of the soluble α-glucan fiber composition of claim 1 .

3. The carbohydrate composition of claim 2 further comprising: a monosaccharide, a disaccharide, glucose, sucrose, fructose, leucrose, corn syrup, high fructose corn syrup, isomerized sugar, maltose, trehalose, panose, raffinose, cellobiose, isomaltose, honey, maple sugar, a fruit-derived sweetener, sorbitol, maltitol, isomaltitol, lactose, nigerose, kojibiose, xylitol, erythritol, dihydrochalcone, stevioside, α-glycosyl stevioside, acesulfame potassium, alitame, neotame, glycyrrhizin, thaumantin, sucralose, L-aspartyl-L-phenylalanine methyl ester, saccharine, maltodextrin, starch, potato starch, tapioca starch, dextran, soluble corn fiber, a resistant maltodextrin, a branched maltodextrin, inulin, polydextrose, a fructooligosaccharide, a galactooligosaccharide, an isomaltooligosaccharide, a xylooligosaccharide, an arabinoxylooligosaccharide, a nigerooligosaccharide, a gentiooligosaccharide, a filler, an excipient, or a binder.

4. A food product comprising the soluble α-glucan fiber composition of claim 1 or the carbohydrate composition of claim 2 or 3 .

5. A cosmetic composition, a pharmaceutical composition or a low carcinogenicity composition comprising the soluble α-glucan fiber composition of claim 1 .

6. A food composition suitable for consumption by animals comprising the soluble α-glucan fiber composition of claim 1 .

7. A composition comprising 0.01 to 99 wt % (dry solids basis) of the soluble α-glucan fiber composition of claim 1 and an additional agent selected from a synbiotic, a peptide, a peptide hydrolysate, a protein, a protein hydrolysate, a soy protein, a dairy protein, an amino acid, a polyol, a polyphenol, a vitamin, a mineral, an herbal, an herbal extract, a fatty acid, a polyunsaturated fatty acid (PUFAs), a phytosteroid, betaine, a carotenoid, a digestive enzyme, or a probiotic organism.

Assignees

• Dupont Ind Biosciences Usa Llc

Inventors

• Cheng Qiong
• Dicosimo Robert
• Ouwehand Arthur
• You Zheng
• Lai Jian Ping
• Yu Zheyong
• Zhang Zhenghong

Classifications

• C12P19/04

  Polysaccharides, i.e. compounds containing more than five saccharide radicals attached to each other by glycosidic bonds · CPC title

• C08L2205/16

  Fibres; Fibrils · CPC title

• A61K31/716

  Glucans · CPC title

• C08L5/00

  Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00 · CPC title

• A21D13/40

  Products characterised by the type, form or use · CPC title