By solving the regression equation and analyzing the response surface contour plots: the maximum L-lactic acid production was 111.5 g liter-1, yield was 93% and productivity was 4.65 g/L/h.

• 在此优化培养基条件下，Lc-F22菌株24h产酸量111.；5g/L，转化率达到93%25，容积产率达到4