文献类型：期刊文献

英文题名：Short-time deep eutectic solvents pretreatment enhanced production of fermentable sugars and tailored lignin nanoparticles from abaca

作者：Ma, Cheng-Ye[1] Peng, Xiao-Peng[2] Sun, Shaolong[3,4] Wen, Jia-Long[1] Yuan, Tong-Qi[1]

第一作者：Ma, Cheng-Ye

通信作者：Wen, JL[1];Sun, SL[2]

机构：[1]Beijing Forestry Univ, Beijing Key Lab Lignocellulos Chem, Beijing 100083, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Key Lab Tree Breeding & Cultivat,Natl Forestry &, Beijing 100091, Peoples R China;[3]South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China;[4]Qingdao Univ, State Key Lab Biofibers & Ecotext, Qingdao 266071, Shandong, Peoples R China

年份：2021

卷号：192

起止页码：417-425

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;Scopus(收录号：2-s2.0-85116860302);WOS:【SCI-EXPANDED(收录号:WOS:000710860300004)】；

基金：This work was supported Beijing Forestry University Outstanding Young Talent Cultivation Project ( 2019JQ03006 ), Guangdong Basic and Applied Basic Research Foundation ( 2019A1515011898 ), State Key Laboratory of Bio-Fibers and Eco-Textiles (Qingdao University) (No. K2019-03 ), Fundamental Research Funds for the Central Non-profit Research Institution of Chinese Academy of Forestry ( CAFYBB2018GB001 ), Hainan Tropical Wildlife Park and Botanical Garden , and the Project of Nanhai Series of Talent Cultivation Program .

语种：英文

外文关键词：Abaca lignin; DES pretreatment; Lignin nanoparticles; Lignin characterization; Enzymatic saccharification

摘要：Deep eutectic solvents (DES) pretreatment is a promising approach to decrease "biomass recalcitrance" and boost the cellulose bioconversion as well as lignin valorization. In this study, a short-time DES pretreatment strategy was performed to enhance the production of high-yield fermentable sugars and tailored lignin nanoparticles (LNPs) from abaca. The glucose yield reached 92.4% under the optimal pretreatment condition (110 degrees C, 30 min), which was dramatically increased in comparison with that (9.5%) of control abaca. Simultaneously, nuclear magnetic resonance (NMR) and gel permeation chromatography (GPC) techniques indicated that the removed and regenerated DES lignin fractions displayed depolymerized structures and have relatively low molecular weight with relatively homogeneous morphology and narrow size distribution. Transmission electron microscope (TEM) analysis indicated that these lignin fractions are LNPs and the size of the optimal LNPs fraction is ranged from 30 nm to 50 nm. Moreover, all the DES lignin exhibited excellent antioxidant activities as compared to the commercial antioxidant butylated hydroxytoluene (BHT), which can be used as a promising natural antioxidant in industry. In short, this study demonstrated that the short-time DES pretreatment will improve the enzymatic digestibility and facilitate the controllable production and valorization of LNPs from abaca biomass, which will further promote the economic and overall benefits of biorefinery.