Fig. 2

Properties of the solid fraction obtained after organosolv pretreatment. a Weight of the solid fraction obtained after pretreatment. b Carbohydrate and lignin composition of the solid fraction. c Glucose yield from the solid fraction. Organosolv pretreatment of sorghum bagasse was carried out using ethanol, 1-propanol, 2-propanol, 1-butanol, and 1-pentanol as the solvent and no solvent (control)