Effect of xylanase treatment on lignin construction of wheat straw

被引：0

作者：

Ge Peijin ^{[1
]}

Zhao Jian ^{[1
]}

Chen Jiachuan ^{[1
]}

Qu Yinbo ^{[1
]}

You Jixue ^{[1
]}

机构：

[1] Shandong Inst Light Ind, Shandong Key Lab Pulp & Paper Engn, Jinan 250100, Peoples R China

来源：

New Technologies in Non-Wood Fiber Pulping and Papermaking | 2006年

关键词：

wheat straw; dioxane lignin; xylanase pretreatment; 2D-HMQC NMR spectroscopy;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to investigate the mechanism of the enzymes in soda-chemimechanical pulping of wheat straw, the dioxane lignin of wheat straw by xylanase pretreatment was analyzed by C-13-NMR,H-1-NMR and 2D-HMQC NMR Spectroscopy, respectively. The analysis results indicated that pretreatment of wheat straw with xylanase led to increase of -OH and OCH3; Wheat straw was activated due to breaking off covalent bond, and xylan from the lignin-carbohydrate-complexes (LCC) was partially degraded and removed by attack of enzyme to lignin-carbohydrate linkages such as ether or glycoside linkages. High-resolution 2D-HMQC NMR technique was found to be a powerful analytical technique for studies on lignin structure.

引用

页码：58 / 62

页数：5

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