Metal Salt-Based Deep Eutectic Solvent Pretreatment of Moso Bamboo to Improve Enzymatic Hydrolysis

Research on metal salt-based deep eutectic solvent (DES) pretreatment is still in its infancy, and the effect of hydroxyl groups Cl− choline chloride (ChCl) not resolved. In this study, a type IV DES composed salt glycerol (Gly) was prepared for moso bamboo to improve enzymatic hydrolysis. The correlation between hydrolysis contents hemicelluloses lignin evaluated using Box–Behnken design. results showed that FeCl3-based optimal among various DES. solid recovery reduced 55.54% following FeCl3/Gly pretreatment, which effective removal compared with ternary (with ChCl) under mild conditions (100 °C, 3 h). With increase temperature (120 2 h), significant proportion (76.07%) (62.77%) removed. structure residue seriously damaged, glucose yield increased 91.13% This indicated hemicelluloses’ content had influence pretreatment. study elucidates DES, will be helpful value-added conversion conditions.