共 43 条
Kinetics of Cellulase Saccharification of Corn Stover after Pretreatment by Lignin Peroxidase and H2O2
被引:4
作者:
Zhang, Zhi C.
[1
]
Li, Jin H.
[2
]
Wang, Feng
[2
]
机构:
[1] Jiangsu Univ, Inst Agroprod Proc Engn, 306 Xuefu, Zhenjiang 212013, Jiangsu, Peoples R China
[2] Jiangsu Univ, Sch Food & Biol Engn, 306 Xuefu, Zhenjiang 212013, Jiangsu, Peoples R China
来源:
BIORESOURCES
|
2017年
/
12卷
/
03期
基金:
中国博士后科学基金;
中国国家自然科学基金;
关键词:
Kinetics;
Heterogeneous system;
Enzyme hydrolysis;
Impeded Michaelis model;
Binary quadratic model;
SOLID-STATE FERMENTATION;
ENZYMATIC-HYDROLYSIS;
HYDROGEN-PEROXIDE;
AQUEOUS-SOLUTION;
OPTIMIZATION;
STALK;
DEGRADATION;
BIOSORPTION;
BIODIESEL;
BAGASSE;
D O I:
10.15376/biores.12.3.5462-5486
中图分类号:
TB3 [工程材料学];
TS [轻工业、手工业、生活服务业];
学科分类号:
0805 ;
080502 ;
0822 ;
摘要:
The kinetics of cellulase saccharification of corn stover (S) after pretreatment by lignin peroxidase (LiP) and H2O2 was modeled in this work. The Impeded Michaelis model was applied in fitting all experimental data. The model gave the initial activity and accessibility of the enzyme on the substrate (K-obs,K-0) and the gradual loss of enzyme activity (K-i). The maximum Y-trs (55.56%) was obtained at pH 4.7, 48.6 degrees C, a 1.5% cellulase, and 12.4: 1 water-to-material ratio. The binary quadratic model provide a good fit of the data on Ytrs and of the model parameters K-obs,K-0 and Ki. The results showed that Ytrs was positively correlated with K-obs,K-0 and negatively correlated with Ki. This study laid a foundation for improving the cellulase saccharification efficiency of lignocellulosic biomass after pretreatment by H2O2 and LiP.
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页码:5462 / 5486
页数:25
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