Produção Nacional
Revisado por pares
Phytochemical screening and antioxidant activity of ethanol extract of Tithonia diversifolia (Hemsl) A. Gray dry flowers
2014; Medknow; Volume: 4; Issue: 9 Linguagem: Inglês
10.12980/apjtb.4.2014apjtb-2014-0055
ISSN2588-9222
AutoresRobson Miranda da Gama, Marcelo Guimarães, Luíz Carlos de Abreu, José Armando-Junior,
Tópico(s)Bee Products Chemical Analysis
ResumoTo evaluate the antioxidant activity of extracts of dried flowers of Tithonia diversifolia (Hemsl) A. Gray (T. diversifolia) dry flower-a shrubby plant belonging to the Asteraceae family and very common in Brazil, providing data to help prevent premature aging skin. The tests of phytochemical screening included total phenols, tannins, flavonoids, alkaloids and saponins. The active antioxidant was determined by 2,2-diphenyl-1-picryl-hydrazyl method. The phytochemical screening of T. diversifolia dry flowers revealed the presence of phenolic compounds (tannins, flavonoids and total phenols), while alkaloids and saponins were not detected. The IC50 values showed a strong antioxidant activity of the plant extracts. Therefore, this study suggests the possibility of using dry flowers extracts of T. diversifolia for the prevention of cell aging, as was shown to have significant antioxidant activity.
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