文献类型：期刊文献

英文题名：Recyclable deep eutectic solvent coupling sodium hydroxide post-treatment for boosting woody/herbaceous biomass conversion at mild condition

作者：Zhou, Xuelian[1,2,3] Huang, Tianjiao[2] Liu, Jue[2] Gao, Huanli[1,2] Bian, Huiyang[1,2] Wang, Ruibin[1,2] Huang, Chen[4] Sha, Jiulong[3] Dai, Hongqi[1,2]

第一作者：Zhou, Xuelian

通信作者：Dai, HQ[1];Dai, HQ[2]

机构：[1]Nanjing Forestry Univ, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat F, Nanjing 210037, Peoples R China;[2]Nanjing Forestry Univ, Coll Light Ind & Food Engn, Nanjing 210037, Peoples R China;[3]Guangxi Univ, Guangxi Key Lab Clean Pulp & Papermaking & Pollut, Sch Light Ind & Food Engn, Nanning 530004, Peoples R China;[4]Chinese Acad Forestry, Jiangsu Prov Key Lab Biomass Energy & Mat, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China

年份：2021

卷号：320

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20204509453897);Scopus(收录号：2-s2.0-85094887668);WOS:【SCI-EXPANDED(收录号:WOS:000599450800013)】；

基金：This work was supported by the Opening Project of Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control (2019KF07), the National Key Research and Development Project of the 13th Five-Year Plan (2017YFD0601005). We would like to acknowledge Jing Yang, Yingchun Miao, Fan Su and Xiaofang Ma of Advanced Analysis & Testing Center, Nanjing Forestry University for providing valuable guidance on the use of CF-SEM, XPS, XRD and FT-IR, respectively.

语种：英文

外文关键词：Deep eutectic solvent; P-TsOH/ChCl; Enzymatic hydrolysis; Alkaline post-treatment; Delignification

摘要：A novel recyclable deep eutectic solvent (DES) consisting of p-toluene sulfonic acid (p-TsOH) and choline chloride (ChCl) was developed for efficient woody poplar sawdust (PL) and herbaceous miscanthus (MC) conversion at mild condition. The extraction of leftover lignin on the surface of DES pretreated residues using NaOH solution at room temperature greatly improved the enzymatic hydrolysis efficiency. Near complete cellulose conversion of PL and MC residues were obtained with a degree of delignification and xylan removal over 90% at 100 degrees C within 40 min. The strong correlations between xylan (R-2 = 0.95) and lignin (R-2 = 0.82) removal with cellulose conversion were observed in MC as well as positive correlations (R-2 > 0.77) in PL. The results demonstrated that the DES system coupling NaOH post-treatment was a promising method to achieve an economically feasible biomass conversion process, which was effective for both woody PL residues and herbaceous MC.