Effect of physicochemical pretreatments plus enzymatic hydrolysis on the composition and morphologic structure of corn straw

In order to decrease corn straw crystallinity for improving reducing sugar yield, physicochemical pretreatments plus enzymatic hydrolysis were investigated. The results showed that hemicellulose and lignin degradation rates in corn straw treated with physical method (ultrasound wave (group 12), extr...

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Bibliographic Details
Published in:Renewable energy 2019-08, Vol.138, p.502-508
Main Authors: Wang, Ping, Liu, Chaoqi, Chang, Juan, Yin, Qingqiang, Huang, Weiwei, Liu, Yang, Dang, Xiaowei, Gao, Tianzeng, Lu, Fushan
Format: Article
Language:English
Subjects:
Corn straw
Enzymatic hydrolysis
Lignocellulose degradation
Physicochemical pretreatment
Reducing sugar yield
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Summary:In order to decrease corn straw crystallinity for improving reducing sugar yield, physicochemical pretreatments plus enzymatic hydrolysis were investigated. The results showed that hemicellulose and lignin degradation rates in corn straw treated with physical method (ultrasound wave (group 12), extrusion + ultrasound wave (group 14), extrusion + ultrasound wave + microwave (group 15)) combined with chemical compounds (lime + sodium hydroxide + hydrogen peroxide) were significantly higher than the untreated corn straw (P 
ISSN:0960-1481
1879-0682
DOI:10.1016/j.renene.2019.01.118