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Table 4 31P NMR quantitative analysis of lignin fractions from ethanol organosolv-pretreated wood sawdust (mmol/g lignin)

From: New strategy to elucidate the positive effects of extractable lignin on enzymatic hydrolysis by quartz crystal microbalance with dissipation

Lignin Aliphatic OH Phenolic OH Carboxylic OH
Condensed Non-condensed Total
MWL-25 2.80 0.77 1.27 2.04 0.75
MWL-50 3.32 0.61 1.23 1.85 0.36
EL-25 1.78 1.03 1.73 2.76 0.42
EL-50 2.10 0.92 1.66 2.58 0.30