| Literature DB >> 24709536 |
Jingwen Chen1, Wengui Zhang1, Hongman Zhang2, Qiuxiang Zhang3, He Huang4.
Abstract
A screw extrude steam explosion (SESE) apparatus was designed and introduced to pretreat corn stover continuously for its following enzymatic hydrolysis. SESE parameters temperature (100, 120, 150°C) and residence time (1, 2, 3min) were investigated. The enzymatic hydrolysis of corn stover pretreated by SESE and steam explosion (SE) process was carried out and analyzed systematically. A serial of analysis methods were established, and the corn stover before/after the pretreatment were characterized by scanning electron microscope (SEM), X-ray Diffraction (XRD) and Thermal Gravity/Derivative Thermal Gravity Analysis (TG/DTG). After treated by SESE pretreatment at the optimum condition (150°C, 2min), the pretreated corn stover exhibited highest enzymatic hydrolysis yield (89%), and rare fermentation inhibitors formed. Characterization results indicated that the highest yield could be attributed to the effective removal of lignin/hemicellulose and destruction of cellulose structure by SESE pretreatment.Entities:
Keywords: Corn stover pretreatment; Enzymatic hydrolysis; Fermentation inhibitors; Screw extrude steam explosion
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Year: 2014 PMID： 24709536 DOI： 10.1016/j.biortech.2014.02.043
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642