Total phenolic content and free radical scavenging activities of methanolic extract powders of tropical fruit residues
- OLIVEIRA, Alane Cabral de
- VALENTIM, Iara Barros
- SILVA, Cicero Alexandre
- BECHARA, Etelvino Jose Henriques
- BARROS, Marcelo Paes de
- MANO, Camila Marinho
- GOULARTA, Marilia Oliveira Fonseca
DOIAbstract
Methanolic extract powders of acerola, passion fruit and pineapple industrial residues, including pulp, seeds and peel, altogether (except for acerola) devoid of seeds, were screened for antioxidant capacity. The total phenolic contents (TPCs) of the extract powders were compared with their radical-scavenging activities (RSA) against both DPPH(center dot) and superoxide anion (O(2)(center dot-)) radicals, and their protective effect against liposome peroxidation, triggered by peroxyl radical. Lipid peroxidation was followed by the fluorescence decay of the probe, 4,4-difluoro-5-(4-phenyl-1,3-butadienyl)-4-bora-3a,4a-diaza-s-indacene-3-undecanoic acid (C(11)-BODIPY(581/591)). The TPCs of acerola, passion fruit and pineapple extract powders w...
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