Effect of a Nonionic Surfactant on Enzymatic Hydrolysis
of Lignocellulose Based on Lignocellulosic Features and Enzyme Adsorption
Posted on 2020-06-25 - 20:31
Reduction
in the adsorption of cellulase onto lignin has been thought
to be the common reason for the improvement of enzymatic hydrolysis
of lignocellulose (EHLC) by a nonionic surfactant (NIS). Few research
studies have focused on the relationship between lignocellulosic features
and NIS for improving EHLC. This study investigated the impact of
Tween20 on the enzymatic hydrolysis and enzyme adsorption of acid-treated
and alkali-treated sugarcane bagasse (SCB), cypress, and Pterocarpus soyauxii (PS) with and without being
ground. After addition of Tween20, the adsorption of cellulase onto
unground and ground alkali-treated SCB increased, and the unground
acid-treated SCB exhibited little change in adsorption cellulase,
while other unground and ground, treated samples showed decreased cellulase adsorption. Tween20 could
improve the enzymatic hydrolysis of acid-treated SCB, while it had
little influence on the enzymatic hydrolysis of other treated materials.
After being ground, both cellulase adsorption and enzymatic hydrolysis
of treated lignocelluloses increased, and Tween20 could enhance the
enzymatic hydrolysis of acid-treated materials while hardly affected
the enzymatic hydrolysis of alkali-treated materials. This indicated
that the promotion effect of Tween20 on enzymatic hydrolysis of treated
lignocellulose could not be mainly ascribed to the hindrance of Tween20
to cellulase adsorption on lignin but was related to the lignocellulosic
features such as hemicellulose removal and surface morphology changes.
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Wang, Wen; Wang, Chaojun; Zahoor; Chen, Xiaoyan; Yu, Qiang; Wang, Zhongming; et al. (1753). Effect of a Nonionic Surfactant on Enzymatic Hydrolysis
of Lignocellulose Based on Lignocellulosic Features and Enzyme Adsorption. ACS Publications. Collection. https://doi.org/10.1021/acsomega.0c00526
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AUTHORS (8)
WW
Wen Wang
CW
Chaojun Wang
Z
Zahoor
XC
Xiaoyan Chen
QY
Qiang Yu
ZW
Zhongming Wang
XZ
Xinshu Zhuang
ZY
Zhenhong Yuan