Figure 3From: The fate of lignin during hydrothermal pretreatmentMolecular weights of cellulolytic enzyme lignin (CEL) as determined by gel permeation chromatography: (a) number average and (b) weight average. Molecular weights of CEL before pretreatment, after flowthrough pretreatment, and after batch pretreatment are shown with horizontal hatching, solid, and diagonal hatching, respectively. The black dashed line represents a molecular weight of 3000 on both panels.Back to article page