Fig. 8
taken from Lu et al. [20]
Enzymatic hydrolysis studies for untreated and ball-milled corn stover at various process conditions. a Effect of solid loading and enzyme loading on 72 h glucose and xylose yield and their combined concentration in the reaction mixture. b Typical profiles for monomeric sugar concentration as a function of hydrolysis time at 10 FPU g−1 solids with different conditions. The horizontal-dashed line indicates the monomeric sugar concentration threshold (87 g L−1) above which the distillation of ethanol is cost-effective. * Data