文献类型：期刊文献

英文题名：Changes on Content, Structure and Surface Distribution of Lignin in Jute Fibers After Laccase Treatment

作者：Dong, Aixue[1,2];Fan, Xuerong[1,3];Wang, Qiang[1,3];Yu, Yuanyuan[1];Wang, Ping[1];Yuan, Jiugang[1];Cavaco-Paulo, Artur[3,4]

机构：[1]Jiangnan Univ, Minist Educ, Key Lab Sci & Technol Ecotext, Wuxi 214122, Jiangsu, Peoples R China;[2]Univ Shaoxing, Sch Text & Clothing, Shaoxing, Zhejiang, Peoples R China;[3]Jiangnan Univ, Int Joint Res Lab Text & Fiber Bioproc, Wuxi, Jiangsu, Peoples R China;[4]Univ Minho, Ctr Biol Engn, Campus Gualtar, Braga, Portugal

年份：2018

卷号：15

期号：3

起止页码：384

外文期刊名：JOURNAL OF NATURAL FIBERS

收录：SCI-EXPANDED(收录号：WOS:000437792000008)、、EI(收录号：20172903959906)、Scopus(收录号：2-s2.0-85024397059)、WOS

基金：This work was financially supported by the National Natural Science Foundations of China (51603087, 51673087), Program for Changjiang Scholars and Innovative Research Team in University (IRT_ 15R26), Fundamental Research Funds for the Central Universities (JUSRP51717A), Key R&D Program of Jiangsu Province (BE2016208), Portuguese Foundation for Science and Technology (UID/BIO/04469/2013 unit), and COMPETE 2020 (POCI-01-0145-FEDER-006684).

语种：英文

外文关键词：Content; distribution; jute; laccase; lignin; structure

外文摘要：Effect of laccase treatment on the content, structure, and surface distribution of lignin in jute fibers were fundamentally investigated. Four percent lignin was removed from jute fibers via the laccase treatment. The residual lignin in the laccase-treated jute fibers showed increased molecular weights, which indicated polymerization between lignins on jute fibers. Meanwhile, the phenolic hydroxyl content in lignin decreased during the laccase oxidation accompanied by demethylation of methoxyl groups and generation of carbonyl groups. Due to the degradation and subsequent polymerization of lignin by laccase, the bulgy lignins on jute fiber surfaces were redistributed, which made the surface neat and glossy.