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US 6,319,699 B1Granted
Bacterial strains and use thereof in fermentation processes for 2-keto-l-gulonic acid protection
OwnerSteven F. Stoddard, Hungming J. Liaw +2inventors
InventorsSteven F. Stoddard, Hungming J. Liaw, John Eddington, Yueqin Yang
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Abstract
The present invention relates to a process for the production of 2-keto-L-gulonic acid by fermentative conversion of L-sorbose and/or D-sorbitol. The present invention further relates to novel bacterial strains useful in this process.
Claims1
A process for the production of 2-keto-L-gulonic acid, which comprises culturing a microorganism strain in a medium containing L-sorbose for a time sufficient for said L-sorbose to be converted to 2-keto-L-gulonic acid;
- and recovering said 2-keto-L-gulonic acid;
- wherein said microorganism strain is prepared by transforming microorganism strain NRRL B-21267 or a mutant thereof with linear or circular DNA molecules.
Dependencies are inferred from the claim text.