Fig. 4From: Stereo-preference in the degradation of the erythro and threo isomers of β-O-4-type lignin model compounds in oxidation processes III: in the reaction with chlorine- and manganese-based oxidantsTime course of the change in the recovery yield of compound 1E or 1T, when either compound was individually treated in the manganese dioxide system at a pH of 1.0 and room temperature. Compound 1E: filled circle, filled diamond, filled square; compound 1T: open circle, open diamond, open squareBack to article page