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

Dong Aixue; Fan Xuerong; Wang Qiang; Yu Yuanyuan; Wang Ping; Yuan Jiugang; Cavaco-Paulo Artur

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

机译：漆酶处理后黄麻纤维中木质素含量，结构和表面分布的变化

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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.

机译：从根本上研究了漆酶处理对黄麻纤维中木质素含量，结构和表面分布的影响。经由漆酶处理从黄麻纤维中去除了百分之四的木质素。漆酶处理过的黄麻纤维中残留的木质素显示出增加的分子量，这表明木质素在黄麻纤维上的聚合。同时，在漆酶氧化过程中，伴随着甲氧基的去甲基化和羰基的生成，木质素中的酚羟基含量降低。由于木质素被漆酶降解并随后聚合，黄麻纤维表面上的膨松木质素被重新分配，使表面整洁而有光泽。

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来源
《Journal of natural fibers》 |2018年第4期|384-395|共12页
作者
Dong Aixue; Fan Xuerong; Wang Qiang; Yu Yuanyuan; Wang Ping; Yuan Jiugang; Cavaco-Paulo Artur;
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作者单位

Jiangnan Univ, Minist Educ, Key Lab Sci & Technol Ecotext, Wuxi 214122, Jiangsu, Peoples R China;

Jiangnan Univ, Minist Educ, Key Lab Sci & Technol Ecotext, Wuxi 214122, Jiangsu, Peoples R China;

Jiangnan Univ, Minist Educ, Key Lab Sci & Technol Ecotext, Wuxi 214122, Jiangsu, Peoples R China;

Jiangnan Univ, Minist Educ, Key Lab Sci & Technol Ecotext, Wuxi 214122, Jiangsu, Peoples R China;

Jiangnan Univ, Minist Educ, Key Lab Sci & Technol Ecotext, Wuxi 214122, Jiangsu, Peoples R China;

Jiangnan Univ, Minist Educ, Key Lab Sci & Technol Ecotext, Wuxi 214122, Jiangsu, Peoples R China;

Jiangnan Univ, Int Joint Res Lab Text & Fiber Bioproc, Wuxi, Jiangsu, Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类
关键词
Content; distribution; jute; laccase; lignin; structure;

机译：含量;分布;黄麻;漆酶;木质素;结构;

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

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