Identification of L-Serine Producer SYPS-062 and the Effect of Different Carbon Source

Abstract:

SYPS-062 was an L-serine producing strain stored by our lab, which could directly produce L-serine from sugar. According to morphology, physiological and biochemical identification and 16S rDNA sequence, SYPS-062 was identified as Corynebacterium glutamicum. And the effect of different carbon source for the SYPS-062 and Corynebacterium glutamicum ATCC13032 fermentation were studied. The experiment result showed that the sucrose was 60 g/L, the yield of L-serine and biomass reached the maximal value, 6.6 g/L and 8.1 g/L respectively.