期刊
BIORESOURCE TECHNOLOGY
卷 102, 期 3, 页码 2890-2896出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.10.132
关键词
Cellulase; Cellulose; Lignin; Polymer/nonionic surfactant; Fractal kinetic analysis
资金
- National Natural Science Foundation of China [20676080, 21076123]
- Morning Star Promotive Program for Young Scholar of Shanghai Jiao Tong University Shanghai, China [T241460631]
- Excellence Initiative of East China University of Science and Technology, Shanghai, China
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.
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