A lignin-based gel preparation enabled by a deep eutectic solvent pretreatment recycling liquor: towards a full utilization of lignocellulose.
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...