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Evonik Degussa obtains United States patent.

Evonik Degussa GmbH (Essen, Germany) has patented a process for the preparation of L-amino acids by the fermentation of recombinant microorganisms of the family Enterobacteriaceae. The microorganisms produce the desired L-amino acid and overexpress the E. coli or S. typhimurium yibD gene encoding the putative glycosyl transferase enzyme. The microorganisms are cultivated in a medium under conditions in which the desired L-amino acid is enriched in the medium or in the cells. The amino acid is then isolated, optionally with constituents of the fermentation broth, and/or all or part (.gtoreq.0 to 100%) of the biomass. (US 7,575,905)
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Publication:BIOTECH Patent News
Date:Aug 1, 2009
Words:101
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