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Deep eutectic solvents (DES) are recognized as an emerging green solvent that can be applied to lignocellulosic biomass fractionation and valorization. A deep understanding of the physicochemical properties of DESs is of great significance to the development of biomass processing technology. Meanwhile, the importance of DESs is manifested by an increasing number of value-added chemicals derived from lignocellulose in DESs. This review focuses on the physicochemical properties of different types of DESs as well as examples of their application to lignocellulosic fractionation. Additionally, recent advancements in research on converting products from DESs fractionation into bio-based materials are highlighted. Potential obstacles and prospects for integrating DESs into biomass processing are also discussed.
Bao et al. (Mon,) studied this question.