Fig. 4From: Laccase-catalyzed lignin depolymerization in deep eutectic solvents: challenges and prospectsRepresentative structures of HBD and HBA (a), optimized geometry of ChCl:glycerol (b) (Nian et al. 2019), the correlation between lignin solubility and the K–T solvatochromic parameters of DES (c) (Zhou et al. 2022a, b), and laccase activity in different DES (d) (Toledo et al. 2019)Back to article page