Fractal kinetic analysis of polymers/nonionic surfactants to eliminate lignin inhibition in enzymatic saccharification of cellulose

被引：27

作者：

Wang, Zhilong ^{[1
]}

Xu, Jian-He ^{[2
]}

Feng, Hao ^{[3
]}

Qi, Hanshi ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Pharm, Shanghai 200240, Peoples R China

[2] E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China

[3] Univ Illinois, Dept Food Sci & Human Nutr, Urbana, IL 61801 USA

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Cellulase; Cellulose; Lignin; Polymer/nonionic surfactant; Fractal kinetic analysis; NONIONIC SURFACTANTS; HYDROLYSIS; PRETREATMENT; ADSORPTION; MECHANISM; GLYCOL);

D O I：

10.1016/j.biortech.2010.10.132

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The profile of enzymatic saccharification of Avicel in the presence and absence of lignin has been described with a fractal kinetic model (Wang and Feng, 2010), in which the retarded hydrolysis rate of enzymatic saccharification of cellulose has been represented with a fractal exponent. The lignin inhibition in the enzymatic saccharification of cellulose is indexed by the increase of fractal exponent, which can not be fully counterbalanced by high cellulase loading due to the high fractal exponent at high cellulase loading. On the contrary, fractal kinetic analysis indicates that an addition of some nonionic surfactant/polymers decrease the fractal exponent to the original values of enzymatic saccharification of Avicel without lignin and the corresponding toxicity of nonionic surfactants/polymers on the consecutive ethanol fermentation strain Saccharomyces cerevisiae is also examined. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2890 / 2896

页数：7

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