Recent developments in pretreatment technologies on lignocellulosic biomass: Effect of key parameters, technological improvements, and challenges

Shashi Kant Bhatia; Sujit Sadashiv Jagtap; Ashwini Ashok Bedekar; Ravi Kant Bhatia; Anil Kumar Patel; Deepak Pant; J Rajesh Banu; Christopher V Rao; Yun-Gon Kim; Yung-Hun Yang

doi:10.1016/j.biortech.2019.122724

Recent developments in pretreatment technologies on lignocellulosic biomass: Effect of key parameters, technological improvements, and challenges

Bioresour Technol. 2020 Mar:300:122724. doi: 10.1016/j.biortech.2019.122724. Epub 2020 Jan 2.

Authors

Affiliations

¹ Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea.
² Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, IL 61801, USA; DOE Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, IL 61801, USA.
³ Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, IL 61801, USA.
⁴ Department of Biotechnology, Himachal Pradesh University, Summer Hill-171005 (H.P), India.
⁵ Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea.
⁶ Department of Chemistry, Central University of Haryana, Mahendragarh, Haryana 123031, India.
⁷ Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, India.
⁸ Department of Chemical Engineering, Soongsil University, 06978 Seoul, Republic of Korea.
⁹ Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea. Electronic address: seokor@konkuk.ac.kr.

PMID: 31926792
DOI: 10.1016/j.biortech.2019.122724

Abstract

Lignocellulosic biomass is an inexpensive renewable source that can be used to produce biofuels and bioproducts. The recalcitrance nature of biomass hampers polysaccharide accessibility for enzymes and microbes. Several pretreatment methods have been developed for the conversion of lignocellulosic biomass into value-added products. However, these pretreatment methods also produce a wide range of secondary compounds, which are inhibitory to enzymes and microorganisms. The selection of an effective and efficient pretreatment method discussed in the review and its process optimization can significantly reduce the production of inhibitory compounds and may lead to enhanced production of fermentable sugars and biochemicals. Moreover, evolutionary and genetic engineering approaches are being used for the improvement of microbial tolerance towards inhibitors. Advancements in pretreatment and detoxification technologies may help to increase the productivity of lignocellulose-based biorefinery. In this review, we discuss the recent advancements in lignocellulosic biomass pretreatment technologies and strategies for the removal of inhibitors.

Keywords: Biomass; Biorefinery; Detoxification; Inhibition; Lignocellulose; Pretreatment.

Publication types

Review

MeSH terms

Biofuels*
Biomass
Biotechnology
Lignin*

Substances

Biofuels
lignocellulose
Lignin