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Pearson’s correlation scatterplot of the relationships between (A) ABTS and TPC, (B) FRAP and TPC, (C) DPPH and TPC, (D) ABTS and TFC, (E) FRAP and TFC, and (F) DPPH and TFC. Abbreviations: ABTS: 2.20-azinobis (3-ethylbenzothiazoline-6-sulfonic acid); CE: catechin equivalents; DPPH: 2.2-diphenyl-1-picryl-hydrazyl-hydrate; FRAP: ferric reducing antioxidant power; DW: dry weight; GAE: gallic acid equivalents. Dashed line represents the regression curve.
