Recent Trends in the Pretreatment of Lignocellulosic Biomass for Value-Added Products
Julie Baruah,Bikash Kar Nath,Ritika Sharma,Sachin Kumar,Ramesh C. Deka,Deben Chandra Baruah,Eeshan Kalita +6 more
TLDR
In this article, the authors discuss the various pretreatment strategies currently in use and provide an overview of their utilization for the isolation of high-value bio-polymeric components, including cellulose, hemicellulose and lignin.Abstract:
Lignocellulosic biomass (LCB) is the most abundantly available bioresource amounting to about a global yield of up to 1.3 billion tons per year. The hydrolysis of LCB results in the release of various reducing sugars which are highly valued in the production of biofuels such as bioethanol and biogas, various organic acids, phenols, and aldehydes. The majority of LCB is composed of biological polymers such as cellulose, hemicellulose and lignin, which are strongly associated with each other by covalent and hydrogen bonds thus forming a highly recalcitrant structure. The presence of lignin renders the bio-polymeric structure highly resistant to solubilization thereby inhibiting the hydrolysis of cellulose and hemicellulose which presents a significant challenge for the isolation of the respective bio-polymeric components. This has led to extensive research in the development of various pretreatment techniques utilizing various physical, chemical, physicochemical and biological approaches which are specifically tailored towards the source biomaterial and its application. The objective of this review is to discuss the various pretreatment strategies currently in use and provide an overview of their utilization for the isolation of high-value bio-polymeric components. The article further discusses the advantages and disadvantages of the various pretreatment methodologies as well as addresses the role of various key factors that are likely to have a significant impact on the pretreatment and digestibility of LCB.read more
Citations
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The role of pretreatment in improving the enzymatic hydrolysis
TL;DR: In this article, the chemical structure of lignocellulosic biomass and factors likely affect the digestibility of LCLs are discussed, and then an overview about the most important pretreatment processes available are provided.
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TL;DR: A comprehensive review of different biorefinery models used for various biomass feedstocks such as lignocelluloses, algae, and numerous waste-types reveals that the social-economic aspect of the industrial sector has a major influence on the full adoption ofBiorefineries in circular bioeconomy.
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Pretreatment Strategies for Enhanced Biogas Production From Lignocellulosic Biomass
Amith Abraham,Anil Kuruvilla Mathew,Hyojung Park,Okkyoung Choi,Raveendran Sindhu,Binod Parameswaran,Ashok Pandey,Jung Han Park,Byoung-In Sang +8 more
TL;DR: Four modes of pretreatment on lignocellulosic biomass and their impact on biogas production process is the major focus of this review article.
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TL;DR: In this paper, a review encompasses the recent advances in selective physical and chemical pretreatment approaches such as milling, extrusion, microwave, ammonia fibre explosion, eutectic solvents etc.
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Lignocellulose biomass pyrolysis for bio-oil production: a review of biomass pre-treatment methods for production of drop-in fuels
TL;DR: In this paper, a review of physicochemical biomass pre-treatment methods used to improve the physiochemical properties of the bio-oils produced from pyrolysis of treated biomass is presented.
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