Fig. 5
From: Efficient integrated production of bioethanol and antiviral glycerolysis lignin from sugarcane trash
Effects of the combination of glycerol, alum, and sulfuric acid on the concentration of sugar recovery and furfural in GXRS (A), pulp yield (B), and reducing sugar yield after enzymatic saccharification of pulp with cellulase (10 FPU) (C). The pretreatment reaction (15 mL) was performed at 140 °C for 30 min with 1.0 g of SCT with (+) or without (−) 50% aq. glycerol (gly), 360 µM alum (alu), and 1.0% H2SO4 (sul). Data represent the average value of three experiments. Error bars are the standard deviation (SD) from the mean value