Produção Nacional
Revisado por pares
Avaliação da atividade antioxidante do ácido fítico de germe de milho
2009; Brazilian Chemical Society; Volume: 32; Issue: 7 Linguagem: Inglês
10.1590/s0100-40422009000700020
ISSN1678-7064
AutoresCristina Tostes Filgueiras, Adriana Lourenço Soares, Massami Shimokomaki, Elza Iouko Ida, Rúbia Casagrande,
Tópico(s)Pineapple and bromelain studies
ResumoCORN GERM PHYTIC ACID ANTIOXIDANT ACTIVITY EVALUATION.The obtained corn germ phytic acid (CGPA) antioxidant potential was evaluated through the deoxyribose, bathophenanthroline (BPS) and DPPH • assays.In the concentration of 130.5 μM of CGPA the hydroxyl radical maximum sequestering antioxidant activity was 29.3% while standard phytic acid (SPA) presented this maximum activity of 18.2% in the concentration of 33.2 μM of SPA.The BPS assays revealed that the chelation activity towards Fe 2+ increased concurrently with the increase of CGPA concentration and its Fe 2+ contact time.Finally, DPPH • assay showed that CGPA and SPA did not present electron-donating capacity to DPPH • .
Referência(s)