| Literature DB >> 33454445 |
Yequan Sheng1, Su Shiung Lam2, Yingji Wu1, Shengbo Ge2, Jinglei Wu3, Liping Cai4, Zhenhua Huang5, Quyet Van Le6, Christian Sonne7, Changlei Xia8.
Abstract
The demands of energy sustainability drive efforts to bio-chemical conversion of biomass into biofuels through pretreatment, enzymatic hydrolysis, and microbial fermentation. Pretreatment leads to significant structural changes of the complex lignin polymer that affect yield and productivity of the enzymatic conversion of lignocellulosic biomass. Structural changes of lignin after pretreatment include functional groups, inter unit linkages and compositions. These changes influence non-productive adsorption of enzyme on lignin through hydrophobic interaction and electrostatic interaction as well as hydrogen bonding. This paper reviews the relationships between structural changes of lignin and enzymatic hydrolysis of pretreated lignocellulosic biomass. The formation of pseudo-lignin during dilute acid pretreatment is revealed, and their negative effect on enzymatic hydrolysis is discussed.Entities:
Keywords: Enzymatic hydrolysis; Lignin characterization; Lignin structure; Pretreatment; Pseudo-lignin
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Year: 2020 PMID： 33454445 DOI： 10.1016/j.biortech.2020.124631
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642