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Enzymatic oxidation of 5-hydroxymethylfurfural (HMF) by different oxidases in dependence of the pH. PeryAAO (A), PostAAO (B), BaduAAO (C), and galactose oxidase (GAO) (D); HMF (blue), 5-diformylfuran (DFF) (violet), HMFCA (green), 5-formyl-2-furancarboxylic acid (FFCA) (red), and sum of HMF and its derivatives (black). Data points are means of triplicate measurements with standard deviations <5%.
