Patent · US Active

Xylose utilization in recombinant zymomonas

US8679822B2 · kind B2 · utility

1Cited by

10References

12Claims

0Family size

Assignee

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

Inventors

Perry G. Caimi · Kennett Square, US
Laura McCole · Coatesville, US
Luan Tao · Claymont, US
Jean-Francois Tomb · Wilmington, US
Paul V. Viitanen · West Chester, US

Key dates

Filing date	Jun 16, 2011
Grant date	Mar 25, 2014
Priority date	—
Expiry date	Aug 6, 2031

Classification

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

Abstract

Xylose-utilizing Zymomonas strains studied were found to accumulate ribulose when grown in xylose-containing media. Engineering these strains to increase ribose-5-phosphate isomerase activity led to reduced ribulose accumulation, improved growth, improved xylose utilization, and increased ethanol production.

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