Effects of cultivation conditions on the optical purity of L(+)-lactic acid / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 1679-1683, 2009.
Article
in Chinese
| WPRIM
| ID: wpr-296873
ABSTRACT
The effect of cultivation conditions on the optical purity of L(+)-lactic acid produced by Rhizopus oryzae HZS6 was investigated. The isomeric composition of lactic acid was influenced by the supplementation of L(+)-lactic acid to fermentation medium. L(+)-isomer increased with the dosage, no D(-)-lactic acid was observed when the concentration of supplemented L(+)-lactic acid in matrix was > or = 1.5 g/L. However, the L(+)-lactic acid yield, biomass and glucose conversion rate decreased with the dosage. With the same method, the supplementation of L(+)-lactic to substrate had no influence on isomeric composition of lactic acid by Lactobacillus and Escherichia coli.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Rhizopus
/
Stereoisomerism
/
Chemistry
/
Lactic Acid
/
Culture Media
/
Fermentation
/
Metabolism
Language:
Chinese
Journal:
Chinese Journal of Biotechnology
Year:
2009
Type:
Article
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