Table 3.

Degree of condensation as evidenced by S/G ratio and condensed: non-condensed G₂ ratios of enzymatic mild acidolysis lignin (EMAL) isolated from sugarcane bagasse and for lignins isolated from four agricultural feedstocks with [TEA][HSO₄] with 20 wt% water and a biomass to solvent ratio of 1:10 g/g.

Lignin	Sub-unit composition				S/G ratioa	Cond/Non-condb
	G2	G2,cond	S2	S2,cond
Bagasse EMAL	81.8	18.2	182.5	42.5	1.12	0.18
Wheat straw 170°30′	55.8	44.2	83.3	41.3	0.62	0.44
Rice straw 170°30′	47.1	52.9	62.0	34.9	0.48	0.53
Rice husk 170°45′	54.5	45.5	22.2	17.5	0.20	0.45
Bagasse 170°45′	42.9	57.1	64.3	57.9	0.61	0.57

^aCalculated from HSQC NMR spectra signals as 0.5(S₂ + S_2,cond)/(G₂ + G_2,cond).

^bCalculated as cond/non-cond = G_2,cond/(G₂ + G_2,cond).