文献类型：期刊文献

英文题名：Facilitating enzymatic hydrolysis with a novel guaiacol-based deep eutectic solvent pretreatment

作者：Huang, Chen[1,2,3] Zhan, Yunni[1] Cheng, Jinyuan[1] Wang, Jia[2] Meng, Xianzhi[3] Zhou, Xuelian[2] Fang, Guigan[1,2] Ragauskas, Arthur J.[3,4,5]

第一作者：Huang, Chen;黄晨

通信作者：Ragauskas, AJ[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Jiangsu Prov Key Lab Biomass Energy & Mat, Nanjing 210042, Peoples R China;[2]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210037, Peoples R China;[3]Univ Tennessee, Dept Chem & Biomol Engn, Knoxville, TN 37996 USA;[4]Univ Tennessee, Ctr Renewable Carbon, Dept Forestry Wildlife & Fisheries, Inst Agr, Knoxville, TN 37996 USA;[5]Oak Ridge Natl Lab, Biosci Div, UTK ORNL Joint Inst Biol Sci, Oak Ridge, TN 37831 USA

年份：2021

卷号：326

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20210509844366);Scopus(收录号：2-s2.0-85099973377);WOS:【SCI-EXPANDED(收录号:WOS:000620172000012)】；

基金：This work was supported by National Natural Science Foundation for Youth (32001273), China Postdoctoral Science Foundation (2020M670526), and Jiangsu Province Key Laboratory of Biomass Energy and Materials (JSBEM-S-202004).

语种：英文

外文关键词：Deep eutectic solvent; Guaiacol; Enzymatic hydrolysis

摘要：Herein, we established a novel deep eutectic solvent (DES) using lignin-derived guaiacol as hydrogen bond donor (HBD). The sole ChCl/guaiacol system was found to be inefficient for the fractionation of wheat straw (WS), while the incorporation of trace AlCl3 significantly facilitated the degradation of hemicellulose and lignin, resulting in a complete enzymatic digestibility of the pretreated WS. Further, this study revealed that the DES-degraded lignin was readily precipitated during the washing process, and thus hindered the enzymatic hydrolysis of poplar and bamboo (with hydrolysis yield of 42.03% and 71.67%, respectively). Alkali washing offers a possible approach to remove the precipitated lignin, after which a near 100% hydrolysis yield was also obtained for poplar and bamboo.