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Phytochemical screening and antioxidant activity of ethanol extract of Tithonia diversifolia (Hemsl) A. Gray dry flowers
Asian Pacific Journal of Tropical Biomedicine ; (12): 740-742, 2014.
Article Dans Chinois | WPRIM | ID: wpr-951845
ABSTRACT

Objective:

To 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.

Methods:

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.

Results:

The phytochemical screening of T. diversifolia dry flowers revealed the presence o 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.

Conclusions:

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.

Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) langue: Chinois Texte intégral: Asian Pacific Journal of Tropical Biomedicine Année: 2014 Type: Article

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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) langue: Chinois Texte intégral: Asian Pacific Journal of Tropical Biomedicine Année: 2014 Type: Article