Patent · US Active

Genetically modified yeast species, and fermentation processes using genetically modified yeast

US8623633B2 · kind B2 · utility

0Cited by

5References

4Claims

0Family size

Assignee

CARGILL, INCORPORATED · US

Inventors

Vineet Rajgarhia · Dublin, US
Kari Koivuranta · Helsinki, FI
Merja Penttila · Helsinki, FI
Marja Ilmen · Helsinki, FI
Pirkko Suominen · Helsinki, FI
Aristos Aristidou · Highlands Ranch, US
Christopher K. Miller · Andover, US
Stacey Olson · Minneapolis, US
Laura Ruohonen · Helsinki, FI

Key dates

Filing date	May 14, 2011
Grant date	Jan 7, 2014
Priority date	—
Expiry date	May 14, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/52
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

Yeast cells are transformed with an exogenous xylose isomerase gene. Additional genetic modifications enhance the ability of the transformed cells to ferment xylose to ethanol or other desired fermentation products. Those modifications include deletion of non-specific or specific aldose reductase gene(s), deletion of xylitol dehydrogenase gene(s) and/or overexpression of xylulokinase.

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