Patent · US Active

Ethanol production using xylitol synthesis mutant of xylose-utilizing zymomonas

US7741084B2 · kind B2 · utility

22Cited by

5References

8Claims

0Family size

Assignees

E.I. DU PONT DE NEMOURS AND COMPANY · US
Alliance for Sustainable Energy, LLC · US

Inventors

Paul V. Viitanen · West Chester, US
Carol M. McCutchen · Dickson, US
Mark Emptage · Wilmington, US
Perry G. Caimi · Kennett Square, US
Min Zhang · 安丰镇, CN
Yat-Chen Chou · Lakewood, US

Key dates

Filing date	Sep 27, 2007
Grant date	Jun 22, 2010
Priority date	—
Expiry date	Sep 27, 2027

Classification

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

Abstract

Production of ethanol using a strain of xylose-utilizing Zymomonas with a genetic modification of the glucose-fructose oxidoreductase gene was found to be improved due to greatly reduced production of xylitol, a detrimental by-product of xylose metabolism synthesized during fermentation.

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