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Antioxidant and free radical-scavenging activity of feijoa essential oil (EO) towards Folin (A); 2,2-diphenyl-1-picrylhydrazyl (DPPH) (B); ferric reducing antioxidant power (FRAP) (C); trolox equivalent antioxidant capacity (TEAC) (D); iron-chelating activity (E), and oxygen radical absorbance capacity (ORAC) (F) assay. The asterisks (**) indicate significant differences (p < 0.001).
