Enzymatic conversion of pretreated lignocellulosic biomass: A review on influence of structural changes of lignin

Yequan Sheng; Su Shiung Lam; Yingji Wu; Shengbo Ge; Jinglei Wu; Liping Cai; Zhenhua Huang; Quyet Van Le; Christian Sonne; Changlei Xia

doi:10.1016/j.biortech.2020.124631

Enzymatic conversion of pretreated lignocellulosic biomass: A review on influence of structural changes of lignin

Yequan Sheng, Su Shiung Lam, Yingji Wu, Shengbo Ge, Jinglei Wu, Liping Cai, Zhenhua Huang, Quyet Van Le, Christian Sonne, Changlei Xia^*

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Review › Research › peer-review

139 Citations (Scopus)

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.

Original language	English
Article number	124631
Journal	Bioresource Technology
Volume	324
Number of pages	10
ISSN	0960-8524
DOIs	https://doi.org/10.1016/j.biortech.2020.124631
Publication status	Published - Mar 2021

Keywords

Enzymatic hydrolysis
Lignin characterization
Lignin structure
Pretreatment
Pseudo-lignin

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title = "Enzymatic conversion of pretreated lignocellulosic biomass: A review on influence of structural changes of lignin",

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.",

keywords = "Enzymatic hydrolysis, Lignin characterization, Lignin structure, Pretreatment, Pseudo-lignin",

author = "Yequan Sheng and Lam, {Su Shiung} and Yingji Wu and Shengbo Ge and Jinglei Wu and Liping Cai and Zhenhua Huang and Le, {Quyet Van} and Christian Sonne and Changlei Xia",

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T1 - Enzymatic conversion of pretreated lignocellulosic biomass

T2 - A review on influence of structural changes of lignin

AU - Sheng, Yequan

AU - Lam, Su Shiung

AU - Wu, Yingji

AU - Ge, Shengbo

AU - Wu, Jinglei

AU - Cai, Liping

AU - Huang, Zhenhua

AU - Le, Quyet Van

AU - Sonne, Christian

AU - Xia, Changlei

PY - 2021/3

Y1 - 2021/3

N2 - 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.

AB - 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.

KW - Enzymatic hydrolysis

KW - Lignin characterization

KW - Lignin structure

KW - Pretreatment

KW - Pseudo-lignin

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DO - 10.1016/j.biortech.2020.124631

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AN - SCOPUS:85099192104

SN - 0960-8524

VL - 324

JO - Bioresource Technology

JF - Bioresource Technology

M1 - 124631

ER -

Enzymatic conversion of pretreated lignocellulosic biomass: A review on influence of structural changes of lignin

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Keywords

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