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Antioxidant activity (TEAC values) of F. arabica based on its property to scavenge ABTS and DPPH free radicals and reduce ferric ions. Concentration-response curve for (A) DPPH, (B) FRAP and (C) ABTS+, as a function of standard trolox solution. (D) Antioxidant activity (TEAC values) of F. arabica (Mean of 3 different experiments ± SEM.).
