Table 1.

Solubility of original Kraft lignin at 55 °C in the reaction media used for its enzymatic transesterification and their respective Kamlet-Taft β parameters.

Solvents	Solubility of Lignin % (w/v)	Kamlet-Taft β Parameter Value Reference
Dioxane	6.7 ± 0.7	0.37	[46]
[C4C1im][MeSO4]	29.3 ± 1.3	0.60	[43]
[C4C1im][OTf]	14.7 ± 0.6	0.50	[44]
[C4C1im][PF6]	0.03 ± 0.01	0.21	[42]