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

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.
Inventors:
; ; ; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1390173
Assignee:
Cargill Incorporated IDO
Patent Number(s):
9,758,799
Application Number:
15/201,913
Contract Number:
FC07-02ID14349
Resource Relation:
Patent File Date: 2016 Jul 05
Research Org:
Cargill Incorporated, Wayzata, MN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES

Other works cited in this record:

Xylose utilization by recombinant yeasts
patent, February 1999

Genetically engineered yeast and mutants thereof for the efficient fermentation of lignocellulose hydrolysates
patent, June 2002

Xylose isomerase with improved properties
patent, November 2002

Production of ethanol from xylose
patent, June 2003

Genetically modified yeast of the species Issatchenkia orientalis and closely relates species, and fermentation processes using same
patent, January 2012

Lactic acid-producing yeast cells having nonfunctional L- or D-lactate:ferricytochrome C oxidoreductase cells
patent, March 2012

Cytosolic isobutanol pathway localization for the production of isobutanol
patent, July 2012

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