Skip to Content
Find More Like This
Return to Search

Mutant E. coli strain with increased succinic acid production

United States Patent

June 23, 1998
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A method for isolating succinic acid producing bacteria is provided comprising increasing the biomass of an organism which lacks the ability to catabolize pyruvate, and then subjecting the biomass to glucose-rich medium in an anaerobic environment to enable pyruvate-catabolizing mutants to grow. The invention also provides for a mutant that produces high amounts of succinic acid, which as been derived from a parent which lacked the genes for pyruvate formate lyase and lactate dehydrogenase, and which belongs to the E.coli Group of Bacteria.
Donnelly; Mark (Warrenville, IL), Millard; Cynthia S. (Plainfield, IL), Stols; Lucy (Woodridge, IL)
University of Chicago (Chicago, IL)
08/ 556,805
November 2, 1995
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention under Contract No. W-31-109-ENG-38 between the U.S. Department of Energy and the University of Chicago representing Argonne National Laboratory.