Figure 4From: Tween 40 pretreatment of unwashed water-insoluble solids of reed straw and corn stover pretreated with liquid hot water to obtain high concentrations of bioethanolEffect of Tween 40 concentration on ethanol concentration. The conditions of Tween 40 pretreatment and fed-batch S-SSF were the same as that in Figure 3. S-SSF, semi-simultaneous saccharification and fermentation.Back to article page