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Recombinant Zymomonas mobilis with improved xylose utilization

United States Patent

May 20, 2003
View the Complete Patent at the US Patent & Trademark Office
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Mixed Sugar Fermentative Strain of Zymomonas mobilis
A strain derived from Zymomonas mobilis ATCC31821 or its derivative capable of producing ethanol upon fermentation of a carbohydrate medium containing xylose to provide enhanced xylose utilization and enhanced ethanol process yield, the strain or its derivative comprising exogenous genes encoding xylose isornerase, xylulokinase, transaldolase and transketolase, the genes are fused to at least one promotor recognized by Zymomonas which regulates the expression of at least one of the genes.
Zhang; Min (Lakewood, CO)
Midwest Research Institute (Kansas City, MO)
09/ 704,153
November 1, 2000
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention pursuant to Contract No. DE-AC36-99GO10337 between the United States Department of Energy and the Midwest Research Institute.