Patent · US Active

High titer production of poly (α 1,3 glucan)

US9080195B2 · kind B2 · utility

26Cited by

2References

10Claims

0Family size

Assignee

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

Inventors

John P. O'Brien · Columbus, US
Mark S. Payne · Wilmington, US

Key dates

Filing date	Sep 7, 2012
Grant date	Jul 14, 2015
Priority date	—
Expiry date	Mar 8, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12Y204/01005
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

A process for enzymatic preparation of poly (α1, 3 glucan) from sucrose is disclosed. The glucosyltransferase enzyme (gtfJ) from Streptococcus salivarius is used to convert sucrose to fructose and poly (α1, 3 glucan). Application of semi-permeable membranes to continuously remove fructose, a by-product of the gtf enzyme, thus increasing the poly (α1, 3 glucan) liter, is disclosed.

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