Effect of steam explosion on biodegradation of lignin in wheat straw

被引：116

作者：

Zhang, Lian-Hui ^{[1
]}

Li, Dong ^{[1
]}

Wang, Li-Jun ^{[2
]}

Wang, Ti-Peng ^{[1
]}

Zhang, Lu ^{[3
]}

Chen, Xiao Dong ^{[1
,4
]}

Mao, Zhi-huai ^{[1
]}

机构：

[1] China Agr Univ, Coll Engn, Beijing 100083, Peoples R China

[2] China Agr Univ, Coll Food Sci & Nutr Engn, Beijing 100083, Peoples R China

[3] Univ Auckland, Dept Chem & Mat Engn, Auckland 1, New Zealand

[4] Monash Univ, Dept Chem Engn, Clayton, Vic 3168, Australia

来源：

BIORESOURCE TECHNOLOGY | 2008年 / 99卷 / 17期

基金：

美国国家科学基金会;

关键词：

wheat straw; biodegradation; steam explosion; Trametes versicolor;

D O I：

10.1016/j.biortech.2008.03.028

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The effect of steam explosion pretreatment on biodegradation of lignin in wheat straw was studied in this paper. Through experiments and analysis, 0.8 MPa operation pressure and 1:20 wheat straw to water ratio are optimum for destroying lignin and the maximum of lignin loss rate is 19.94%. After steam explosion pretreatment, the wheat straw was retted by Trametes versicolor for 40 days. Biodegradation rate of lignin was tested and the maximum of 55.40% lignin loss rate Was found on day 30. During the whole process of both steam explosion pretreatment and biodegradation, 75.34% lignin was degraded, without steam explosion the biodegradation of raw material the degradation rate of lignin was 31.23% only. FT-IR spectroscopy, TGA and SEM were used for further validating the results of biodegradation. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：8512 / 8515

页数：4

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