Fig. 3

Oxidation of the non-phenolic lignin model compound veratryl alcohol by 0.5 U/mL IlMnP1 and IlMnP2 at 30 °C for 48 h. a VA was treated by the two IlMnPs in the malonate buffer (50 mM, pH 5.0) with or without 1 mM Mn²⁺. b VA was treated by the two IlMnPs in the malonate and oxalate buffer (50 mM, pH 5.0) with 1 mM Mn²⁺. Control VA was treated without any enzyme in the malonate buffer (pH 5.0) with 1 mM Mn²⁺