Fig. 4From: Effect of type of aromatic nucleus in lignin on the rate of the β-O-4 bond cleavage during alkaline pulping processChange in the yields of S′G and guaiacol, when S′G was treated at 150 °C. Filled circle, filled star S′G, open circle, open star guaiacol, filled circle, open circle 1st trial, filled star, open star 2nd trialBack to article page