Figure 6From: Tween 40 pretreatment of unwashed water-insoluble solids of reed straw and corn stover pretreated with liquid hot water to obtain high concentrations of bioethanolEffects of recycling frequency of residual liquid after Tween 40 pretreatment on ethanol concentration. Cellulase loading of 25 FPU/g oven-dried WIS was used in fed-batch S-SSF process, and other conditions were the same as that in Figure 5. S-SSF, semi-simultaneous saccharification and fermentation; WIS, water-insoluble solids.Back to article page