Hydroxyl Groups
SKL(mmol/g)
DL (mmol/g)
Carboxylic Acid
1.28
2.44
Guaiacyl-OH
0.96
1.32
Syringyl-OH
0.01
0.03
Aliphatic-OH
0.69
0.82
p-Hydroxyphenyl-OH
0.12
0.4
Table 4:
Quantification of different hydroxyl groups of SKL and DL by
31
P-NMR spectrometry.