Extraction of Antioxidant Compounds from Eugenia uniflora L. Leaves by Energized Dispersive Guided (EDGE) System

Paulo Natan Alves dos Santos; Allan dos Santos Polidoro; Anaí Loreiro dos Santos; Elina Bastos Caramão

doi:10.34178/jbth.v6i4.335

Paulo Natan Alves dos Santos
Allan dos Santos Polidoro
Anaí Loreiro dos Santos
Elina Bastos Caramão

DOI: https://doi.org/10.34178/jbth.v6i4.335

Keywords: Antioxidants, Eugenia uniflora L., EDGE

Abstract

The leaves of Pitanga (Eugenia uniflora L.) present recognized antioxidant potential that has practical applications in pharmaceuticals, food, perfume, agrochemical, and cosmetic industries. The Energized Dispersive Guided Extraction (EDGE) system, which combines dispersive solid-phase extraction with the Accelerated Solvent Extraction system, was employed in "combined mode" with extraction cycles to obtain antioxidant compounds from Pitanga leaves. The results showed that extraction cycles with different solvents produce similar extraction yields. At the same time, their ability to scavenge free DPPH radicals exhibited variations according to the polarity of the extraction solvent. Thus, acetone was the optimal solvent for extracting antioxidant compounds from E. uniflora leaves in the combined mode.