Center of Excellence

Browse

Now showing 1 - 1 of 1

Highly efficient one-pot bioethanol production from corn stalk with biocompatible ionic liquids
(Elsevier Ltd., 2023-05) Zhu, Qingqing; Gao, Die; Yan, Dongxia; Tang, Jing; Cheng, Xiujie; El Sayed, Ibrahim El Tantawy; El-Gendy, Nour Sh; Lu, Xingmei; Xin, Jiayu
Efficient utilization of ionic liquids (ILs) for transforming lignocellulose into biofuel and alleviating concerns over shortages of nonrenewable resources is still an urgent issue. Herein, a highly efficient one-pot bioethanol production with biocompatible ILs was designed. XRD, TGA, and DSC analysis showed that pre-treatment of corn stalk with [Ch][Gly] trend to become easier to depolymerize than the untreated sample. Under one-pot process, the efficiency of [Ch][Gly] pretreated method could achieve a 9-fold sugar yield, i.e., 324.7 mg glucose/PU and 131.8 mg xylose/PU (1 PU = 10 g, 3 wt% [Ch][Gly] aqueous). The conditions for the whole process were optimized and the maximum yield% were achieved 80 % for glucose, 79 % for xylose, and 84 % for bioethanol. Besides, we found that increasing surface area and pore size could enhance accessibility for enzymes to attack cellulose and hemicellulose. The proposed study offers an efficient one-pot bioethanol production strategy with sustainable ILs.