Fig. 5From: Synergistic contribution of hydrosulfide and carbonate anions to the β-O-4 bond cleavage of lignin model compounds in a green liquor pretreatment for enzymatic hydrolysis of lignocellulosic materialsChange in the yields of compounds II and III, and the total yields of these compounds on the basis of the initial amount of compound II, when compound II was treated in solutions 1, 2, and 3 at 140 °C: filled star open star open triangle, 150 °C: filled diamond open diamond open inverted triangle, and 160 °C: filled circle open circle multi symbol Back to article page