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US 5,792,631 AGranted
Microbial process for the production of ascorbic acid using Chlorella protothecoides
AssigneeDCV, Inc.
InventorJeffrey Running
Life of this patent
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Abstract
The present invention is directed to methods for the production of ascorbic acid by culturing organisms of the species C. protothecoides and recovering ascorbic acid from the fermentation medium.
Claims16
A process for the production of L-ascorbic acid, the process comprising the steps of:
- (a) culturing an organism of the species C. protothecoides in a fermentation medium containing assimilable sources of carbon and nitrogen;
- and
- (b) recovering L-ascorbic acid from said fermentation medium.
A process for the production of L-ascorbic acid, the process comprising the steps of:
- (a) culturing an organism of the species C. protothecoides in a fermentation medium having a pH of less than about 6 and an available source of oxygen until said fermentation medium has a concentration of extracellular L-ascorbic acid of greater than about 1 mg/l;
- and
- (b) recovering extracellular L-ascorbic acid from said fermentation medium.
Dependencies are inferred from the claim text.