Manganese peroxidase (MnP) is a hemecontaining glycoprotein that is produced by ligninolytic basidiomycetes. It requires hydrogen peroxide as an oxidant. MnP oxidizes Mn2+ to Mn3+. Mn3+ oxidizes phenolic rings to phenoxy radicals which results in the decomposition of various compounds.http://www.creative-enzymes.com/product/Native-Whiterot-Fungus-Phaner-Ochaete-Chrysosporium-Manganese-Peroxidase_1300.html