Fig. 4

Consortium fermentation profiles in variousconcentrations of corn stover hydrolysates. a, b, c Glucose, xylose and ethanol fermentation profiles in 60 g/L of corn stover hydrolysate. d, e, f Glucose, xylose and ethanol fermentation profiles in 90 g/L of corn stover hydrolysate. g, h, i Glucose, xylose and ethanol fermentation profiles in 120 g/L of corn stover hydrolysate.The concentration of corn stover hydrolysates represents the total amount of glucose and xylose in the hydrolysates before autoclave sterilization. For consortium fermentation, the inoculation ratio between S. stipitis CICC1960 and Z. mobilis FR2 was 1:3. Data are mean ± standard error from three replicates