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Review | Open Access

A Review of Lignocellulosic Biomass Pretreatment Technologies

Caoxing Huang1( ), Jiao Liu1, Wenhui Geng2, Wei Tang1, Qiang Yong1
Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037, China
Department of Forest Biomaterials, North Carolina State University, Raleigh, NC, 27695, USA
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Abstract

Lignocellulose is the most abundant renewable resource on earth. However, owing to the tightly entangled structural characteristics, it is challenging to convert lignocellulose into bio-based products in the biorefinery process without pretreatment. Pretreatment can destroy the natural resistance structure of lignocellulosic biomass, which is conducive to its downstream enzymatic saccharification and fermentation process. Physical, chemical, and physicochemical pretreatments have been widely conducted for lignocellulosic biomass; several updated approaches and peculiar chemicals have also been proposed for these pretreatment methods in the recent years. Hence, this study comprehensively reviews the novel technologies and chemicals that were applied in the various pretreatments. In addition, the mechanisms, advantages, and disadvantages of the updated pretreatments are discussed to provide a reference for developing new pretreatment methods.

Keywords

pretreatmentenzymatic hydrolysislignocellulosic biomassbioethanol

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Paper and Biomaterials
Volume 6 Issue 3,
July 2021
Pages 61-76
DOI: 10.1213/j.issn.2096-2355.2021.03.007
Cite this article:
Huang C, Liu J, Geng W, et al. A Review of Lignocellulosic Biomass Pretreatment Technologies. Paper and Biomaterials, 2021, 6(3): 61-76. https://doi.org/10.1213/j.issn.2096-2355.2021.03.007

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Received: 28 March 2021
Accepted: 07 June 2021
Published: 25 July 2021
© 2021 Paper and Biomaterials

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
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