Fig. 6From: Coupled enzymatic hydrolysis and ethanol fermentation: ionic liquid pretreatment for enhanced yieldsEthanol produced from the fermentations of lignocellulose hydrolysates. Green bars represent ethanol produced from the enzymatic hydrolysates and red bars represent ethanol produced from the liquid fraction of acid pre-hydrolysis. Enzymatic hydrolysis experiments were performed with lignocellulose that were first treated with either H2SO4 (SF 4.1) or with the SIL DBU–MEA–SO2 (SF 4.1)Back to article page