Claim: Manganese peroxidase, an enzyme that catalyzes the chemical reaction, releases Mn(III)-carboxylic acid chelate, as peroxidase structures favor Mn(III)-chelates over free Mn(III) ions.
Evidence: In enzymology, a manganese peroxidase (EC ) is an enzyme that catalyzes the chemical reaction Mn(III) is unstable in aqueous media, therefore MnP releases it as a Mn(III)-carboxylic acid chelate. The peroxidase structure favors Mn(III)-chelates over free Mn(III) ions.