Antioxidant Capacity through Electrochemical Methods and Chemical Composition of and from the Ecuadorian Amazon.

This study evaluated the antioxidant properties and chemical composition of the seeds, pulp and peels of Ungurahua () and Pasu ()-fruits, native to the Ecuadorian Amazon. The antioxidant capacity was measured by 1,1-diphenyl-2-picrylhydrazyl (DPPH) and cyclic voltammetry (antioxidant index 50 (AI)) assays; differential pulse voltammetry was used to evaluate antioxidant power using the electrochemical index. The total phenolic content, as well as the yellow flavonoid and anthocyanin content, were quantified via spectrophotometry.