Method for producing L-lactic acid
AssigneeTatung Co., Ltd.
InventorsDey-Chyi Sheu, Kow-Jen Duan, Ching-Yi Wu, Mei-Ching Yu
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Abstract
A method for producing L-lactic acid is disclosed, which comprises the following steps: (a) culturing spores of Rhizopus oryzae in a medium containing a carbon source and a nitrogen source, forming dispersed mycelia, (b) seeding said mycelia into a fermentation medium containing ammonia; (c) starting the fermentation, meanwhile, the pH value is controlled in a range of 4-5 and the concentration of ammonia is in a range of 0.05-5 g/L; and (d) extracting the L-lactic acid form the fermentation medium, wherein the Rhizopus oryzae is Rhizopus oryzae ATCC 9363.
Claims12
A method for producing L-lactic acid comprising the steps of:
- (a) culturing spores of Rhizopus oryzae in a medium containing carbon source and nitrogen source, forming dispersed mycelia;
- (b) seeding the mycelia into a fermentation medium containing ammonia;
- (c) starting the fermentation, meanwhile, the pH value is controlled in a range of 4-5, and the concentration of ammonia is in a range of 0.05-5 g/L;
- and
- (d) extracting the L-lactic acid from the fermentation medium, wherein, the Rhizopus oryzae is Rhizopus oryzae ATCC 9363.
Dependencies are inferred from the claim text.