文献类型：期刊文献

英文题名：One-pot generation of lignin microspheres and digestible substrate with a polyol-DES pretreatment in high solid loading

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

第一作者：Cheng, Jinyuan

通信作者：Huang, C[1];Zhou, XL[1];Fang, GG[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 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]State Univ New York, Coll Environm Sci & Forestry, Dept Chem Engn, Syracuse, NY 13210 USA

年份：2023

卷号：394

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：;EI(收录号：20231313806111);Scopus(收录号：2-s2.0-85150812438);WOS:【SCI-EXPANDED(收录号:WOS:000946802900001)】；

基金：This work was supported by Jiangsu Province Key Laboratory of Biomass Energy and Materials (JSBEM-S-202203) , Young Elite Scientist Sponsorship Program by CAST, National Natural Science Foundation for Youth (32001273) , and Taishan Industrial Experts Programme (tscy20200213) . AJR and XM efforts were supported by the University of Tennessee, Knoxville. CGY was supported by the State University of New York College of Environmental Science and Forestry.

语种：英文

外文关键词：Deep eutectic solvents; Delignification; Enzymatic hydrolysis; Lignin microspheres; High-solid pretreatment

摘要：Previous lignin microspheres (LMS) preparation needs multiple steps with very low yield and high cost. Herein, we developed a high-solid deep eutectic solvent (DES) pretreatment for an effective lignin fractionation and enzymatic saccharification of moso bamboo under mild temperature (110 degrees C) with high-solid loading. Lignin was significantly removed from the plant cell wall, and cellulose properties (e.g., crystallinity and degree of poly-merization) were also altered during the pretreatment. As a result, the enzymatic digestibility of the pretreated bamboo was dramatically increased. Uniform micro-spherical lignin was directly produced from the pretreat-ment system, and its particle size could be regulated by controlling the solid loadings and pretreatment tem-peratures. The lignin microspheres formation mechanism was investigated by analyzing the lignin's size distribution, molecular weight distribution, chemical structure, and hydrophobicity. The DES showed excellent recyclability, and the recycled DES could still remove 42.78% lignin even after 7th circulation associated with 100% glucan saccharification. The mass balance based on 1000 g biomass showed that 196.28 g LMS was directly recovered, which exhibited a high RhB adsorption. Besides, 404.91 g glucose and 36.67 g xylose were obtained after the enzymatic saccharification process. Specifically, GAPI analysis exhibited a near total green and yellow portions of the pictogram, indicating our DES process was green enough to make this biorefinery sus-tainable. Overall, the proposed DES generated synergistic productions of digestible solid and LMS which could contribute to establish a green and sustainable biorefinery sequence with diverse outputs in one pot.