文献类型：期刊文献

英文题名：Effective biomass fractionation and lignin stabilization using a diol DES system

作者：Cheng, Jinyuan[1] Huang, Chen[1,2,3] Zhan, Yunni[1] Han, Shanming[1] Wang, Jia[2] Meng, Xianzhi[3] Yoo, Chang Geun[6] Fang, Guigan[1,2] Ragauskas, Arthur J.[3,4,5]

第一作者：Cheng, Jinyuan

通信作者：Huang, C[1];Fang, GG[1];Huang, C[2];Fang, GG[2];Huang, C[3]|[a000589b6171897e30b38]房桂干;

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 Res, Nanjing 210037, Peoples R China;[3]Univ Tennessee Knoxville, 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]Joint Inst Biol Sci, Biosci Div, Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA;[6]SUNY Coll Environm Sci & Forestry, Dept Chem Engn, Syracuse, NY 13210 USA

年份：2022

卷号：443

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20221912081732);Scopus(收录号：2-s2.0-85129525079);WOS:【SCI-EXPANDED(收录号:WOS:000800002000004)】；

基金：& nbsp;This work was supported by Jiangsu Province Key Laboratory of Biomass Energy and Materials (JSBEM-S-202004) , National Natural Science Foundation for Youth (32001273) , and Young Elite Scientist Sponsorship Program by CAST. AJR and XM were supported by the University of Tennessee. CGY was supported by the State University of New York College of Environmental Science and Forestry Startup package.

语种：英文

外文关键词：diol DES; Delignification; Lignin protection; Lignin valorization

摘要：A sustainable and renewable biorefinery will increase the economic viability of lignocellulose-derived products. In this study, a diol-based deep eutectic solvent (DES) was developed to reduce the recalcitrance of bamboo, facilitate saccharification and valorize the lignin fraction. The DES pretreatment dramatically enhanced glucan digestibility by the effective removal of lignin (as high as 85.45%) and xylan (91.12%). Notably, the recovered lignin from DES pretreatment was protected during the fractionation, showing well-preserved 8-O-4 structures (31.82%-59.06%). The mechanism of lignin protection was analyzed to be accomplished by incorporating the diol hydroxyl functional groups into the alpha position of the lignin 8-O-4 structure via etherification. This study highlighted that diol DES is a promising pretreatment solvent to valorize both cellulose and lignin fractions with high enzymatic hydrolysis yield and high-quality lignin co-product.