Aug 2026· Journal of Agricultural and Food Chemistry· Vol 74 31, pp.
24058-24081
· 0 citations· 180 references
Medicine
Abstract
Lignocellulosic biomass is a key renewable resource for producing biofuels, biomaterials, and high-value chemicals, but its efficient utilization is hindered by the recalcitrant lignin-carbohydrate complex (LCC) network. Organosolv (OS) and deep eutectic solvent (DES) pretreatments have emerged as promising green strategies for biomass fractionation and lignin extraction. The present work summarizes recent advances in OS and DES pretreatment, with a particular focus on the mechanisms of lignin depolymerization and structural evolution, including changes in major bonds, functional groups, S/G ratio, molecular weight, and its distribution. The selection of solvents, recovery strategies, and the influence of solvent composition and process conditions on lignin recovery and biomass fractionation are critically discussed. The challenges and prospects for improving solvent recyclability and lignin valorization in industrial-scale applications are also highlighted. This review provides insights into green solvent-mediated lignin transformation and supports the development of more sustainable biorefinery processes.
Lignin is a renewable aromatic resource, yet its efficient depolymerization requires metal catalysts under high temperature, pressure, and strong base. This study employed ozone as a clean oxidant for lignin depolymerization under mild, catalyst- and base-free conditions. Grass lignin, rich in p-coumaric acid (pCA), fe...
Yun Zhao, Ting Li, Yang Cao et al.· ChemSusChem· 0 citations
Deep eutectic solvents (DESs) are widely applied in lignocellulosic biomass pretreatment for their green, reusable, and lignin-selective merits. However, lignin accumulation during DES cycling significantly increases solvent viscosity and reduces pretreatment efficiency, severely limiting its sustainable application. T...
Lei-Xin Huang, En-Qing Zhu, Zi-Liang Dai et al.· Bioresource Technology· 0 citations
Deep eutectic solvents (DESs) have emerged as a highly versatile platform for wood modification and biomass processing due to their compositional tunability, mild reaction conditions and capacity for selective regulation of lignocellulosic components, thereby enabling the subsequent structural engineering and functiona...
Yizhen Hua, Tong-Tong Li, Xin-You Liu et al.· Bioresource Technology· 0 citations
The urgent need for bio-based functional materials has driven a shift away from fossil-fuel-sourced materials toward renewable lignocellulosic biomass (LCB). This comprehensive review explores the advancements in LCB carbonization between 2020 and 2026, marking a shift from traditional, low-yield combustion processes t...
H. Appiah, Sang Hyeok Park, J. V. Tongco· C++ Conference· 1 citation
Efficient pretreatment that enables selective fractionation, structural preservation, and coordinated downstream utilization remains a major challenge for lignocellulosic biorefineries. Herein, an alkaline deep eutectic solvent composed of triethylbenzylammonium chloride and ethanolamine was adopted for the integrated...
Achieving efficient delignification while preserving the native structure of lignin remains a critical challenge for integrated bamboo biorefineries. In this study, a ternary deep eutectic solvent (DES) composed of (Benzyltriethylammonium chloride) TEBAC, ethylene glycol (EG), and p-toluenesulfonic acid (p-TsOH) was de...
Yaoyao Jin, Zi-Dong Xu, Haiyan Yang et al.· Bioresource Technology· 1 citation
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