Table 2.

Phenol content of commercial and acetylated lignins deduced from UV/Vis spectra, and the corresponding percentage of esterification.

Lignin	Type I OH	Type IV OH	% Esterification
	(mmol g−1)	(mmol g−1)
KL	0.936	0.097
AKL	0.765	0.089	17.3
OL	0.528	0.123
AOL	0.0	0.055	91.6
HL	0.424	0.156
AHL	0.0	0.073	87.6