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, innovative 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 fractionation (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.

木质纤维素生物质在预处理过程中释放出多种化合物，其中最重要的是还原糖，可用于生产生物燃料和其他一些产品。因此，创新的木质纤维素材料绿色预处理技术被认为可以在刚性碳水化合物-木质素基质的消化率方面打开一扇新的大门，以降低粒径并去除半纤维素/木质素含量，从而成功生产有效的生物产品。本文回顾了木质纤维素的组成，并强调了各种绿色预处理，即新型绿色溶剂基 IL 和 DES 蒸汽爆炸、超临界二氧化碳爆炸 (Sc–CO2) 和共溶剂增强木质纤维素分馏 (CELF) 以及合适的机理途径LCB预处理工艺。最后，