Patent · US Active

Production of glucan polymers from alternate sucrose sources

US9719121B2 · kind B2 · utility

7Cited by

15References

20Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Dean M. Fake · Wilmington, US
Susan Marie Hennessey · Avondale, US
Brian D. Mather · San Diego, US
Jennifer S. Ovental · Raleigh, US
Wayne Atkinson · New Castle, US
Tyler D. Pritchett · Bear, US
Negash Adugna · Wilmington, US

Key dates

Filing date	Mar 24, 2015
Grant date	Aug 1, 2017
Priority date	—
Expiry date	Apr 19, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E50/10
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

Reaction solutions are disclosed herein comprising water, incompletely refined sucrose, and a glucosyltransferase enzyme that synthesizes insoluble poly alpha-1,3-glucan having at least 50% alpha-1,3 glycosidic linkages and a weight average degree of polymerization (DPw) of at least 100. The yield of poly alpha-1,3-glucan by a reaction solution herein is at least 7% of the weight of sucrose that was converted in the reaction solution. Further disclosed are methods of producing poly alpha-1,3-glucan using incompletely refined sucrose, and poly alpha-1,3-glucan produced by these methods.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.