Journal
BIORESOURCE TECHNOLOGY
Volume 369, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2022.128328
Keywords
Lignocellulose; Pretreatments; ILs; DES; Sc– CO2; CELF
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During the pretreatment of lignocellulose biomass, reducing sugars are released and can be used for the production of biofuels and other products. Innovative greener pretreatment techniques are being considered to improve the digestibility of lignocellulosic materials and remove hemicellulose/lignin to yield valid bioproducts.
Lignocellulose biomass during pretreatment releases various compounds, among them the most important is reducing sugars, which can be utilized for the production of biofuels and some other products. Thereby, inno-vative greener pretreatment techniques for lignocellulosic materials have been considered to open a new door in the aspects of digestibility of the rigid carbohydrate-lignin matrix to reduce the particle size and remove hemicellulose/lignin contents to successfully yield valid bioproducts. This article reviews about the composition of lignocelluloses and emphasizes various green pretreatments viz novel green solvent-based IL and DES steam explosion, supercritical carbon dioxide explosion (Sc-CO2) and co-solvent enhanced lignocellulosic fraction-ation (CELF) along with suitable mechanistic pathway of LCB pretreatment process. Finally, this article concludes that the existing pretreatments should be redesigned to conquer the demands by large scale production and suggests combined pretreatment methods to carry out various biomass pre-processing.
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