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Bi-plots of principal component analysis (PCA): Factor 1 vs. Factor 2 (a) and Factor 1 vs. Factor 3 (b) separates enzymatic treatments in terms of enzymatic activity profile, phenolic acids, and monosaccharide composition of WB hydrolysates. Abbreviations: decarboxylated form of dihydroferulic acid (DFA dc); dihydroferulic acid isomer 1 (DFA i1); dihydroferulic acid isomer 2 (DFA i2); ferulic acid (FA); total phenolic compounds (TPC); vanillin ferulic acid (VFA).
