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Title: Genes related to xylose fermentation and methods of using same for enhanced biofuel production

Abstract

The present invention provides isolated gene sequences involved in xylose fermentation and related recombinant yeast which are useful in methods of enhanced biofuel production, particularly ethanol production. Methods of bioengineering recombinant yeast useful for biofuel production are also provided.

Inventors:
;
Publication Date:
Research Org.:
Wisconsin Alumni Research Foundation, Madison, WI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1150005
Patent Number(s):
8,795,996
Application Number:
13/441,381
Assignee:
Wisconsin Alumni Research Foundation (Madison, WI) CHO
DOE Contract Number:
FC02-07ER64494
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES

Citation Formats

Wohlbach, Dana J., and Gasch, Audrey P. Genes related to xylose fermentation and methods of using same for enhanced biofuel production. United States: N. p., 2014. Web.
Wohlbach, Dana J., & Gasch, Audrey P. Genes related to xylose fermentation and methods of using same for enhanced biofuel production. United States.
Wohlbach, Dana J., and Gasch, Audrey P. 2014. "Genes related to xylose fermentation and methods of using same for enhanced biofuel production". United States. doi:. https://www.osti.gov/servlets/purl/1150005.
@article{osti_1150005,
title = {Genes related to xylose fermentation and methods of using same for enhanced biofuel production},
author = {Wohlbach, Dana J. and Gasch, Audrey P.},
abstractNote = {The present invention provides isolated gene sequences involved in xylose fermentation and related recombinant yeast which are useful in methods of enhanced biofuel production, particularly ethanol production. Methods of bioengineering recombinant yeast useful for biofuel production are also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2014,
month = 8
}

Patent:

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  • The present invention provides isolated gene sequences involved in xylose fermentation and related recombinant yeast which are useful in methods of enhanced biofuel production, particularly ethanol production. Methods of bioengineering recombinant yeast useful for biofuel production are also provided.
  • The present invention provides isolated gene sequences involved in xylose fermentation and related recombinant yeast which are useful in methods of enhanced biofuel production, particularly ethanol production. Methods of bioengineering recombinant yeast useful for biofuel production are also provided.
  • A process is described for producing an enhanced ethanol yield by aerobically fermenting D-xylose in a fermentation medium with Pachysolen tannophilus having deposit accession numbers. The improvement comprises adding glucose to the fermentation medium after the fermentation has commenced and during the carrying forth of the fermentation with the adding being continuously or at intervals during each 24 hours of the carrying forth of the fermentation and being of an amount of the glucose providing a glucose concentration not exceeding one percent by weight of the fermentation medium until substantially all D-xylose is consumed.
  • Xylose-utilizing Z. mobilis strains were found to have improved ethanol production when grown in medium containing mixed sugars including xylose if sorbitol or mannitol was included in the medium. The effect was seen in concentrations of mixed sugars where no growth lag period occurs, as well as in higher sugars concentrations.
  • A carbon dioxide absorbent composition is described, including (i) a liquid, nonaqueous silicon-based material, functionalized with one or more groups that either reversibly react with CO.sub.2 or have a high-affinity for CO.sub.2; and (ii) a hydroxy-containing solvent that is capable of dissolving both the silicon-based material and a reaction product of the silicon-based material and CO.sub.2. The absorbent may be utilized in methods to reduce carbon dioxide in an exhaust gas, and finds particular utility in power plants.