Fractal kinetic analysis of the enzymatic saccharification of cellulose under different conditions.
Fractal kinetic analysis of the enzymatic saccharification of cellulose under different conditions.
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DOI：
10.1016/j.biortech.2010.05.056
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发表时间：
2010-10
影响因子：
11.4
通讯作者：
Zhilong Wang;H. Feng
中科院分区：
文献类型：
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作者：
Zhilong Wang;H. Feng
将分形动力学分析应用于纤维素酶糖化动力学研究。基于纤维素降解一级动力学，建立了一个双参数（速率系数和分形指数）的分形动力学模型。该模型与纤维素酶法糖化的实验数据吻合较好，实验条件包括纤维素酶用量、底物性质、水解温度、反应介质中添加非离子表面活性剂或聚合物等。结果表明，纤维素酶解糖化反应的复杂动力学过程可以用分形动力学模型来描述。该模型表明，非离子表面活性剂或聚合物的加入增加了速率系数，同时降低了分形指数。非离子表面活性剂或聚合物水溶液可能是生物燃料工业中纤维素酶促糖化的一种潜在的介质工程方法。
Fractal kinetic analysis has been applied for the kinetics of enzymatic saccharification of cellulose. Based on the first order cellulose degradation kinetic, a fractal kinetic model with two parameters (rate coefficient and fractal exponent) has been developed. The model fits very well with the experimental data of enzymatic saccharification of cellulose under different conditions, including cellulase loading, nature of substrate, hydrolysis temperature, and addition of nonionic surfactant or polymer in the reaction medium. It indicates that the complex kinetics of enzymatic saccharification of cellulose can be described with the fractal kinetic model. The model exhibits that an addition of nonionic surfactant or polymer increases the rate coefficient and decreases the fractal exponent at the same time. A nonionic surfactant or polymer aqueous solution may be a potential medium engineering method for enzymatic saccharification of cellulose in biofuel industry.