Determination of secondary metabolites and antibacterial property of extract from the leaves of Stachytarpheta jamaicensis (L.) Vahl
Oliva C. Ruma, Teresita B. Zipagang
The study evaluated the phytochemical profile and antibacterial activity of the ethanolic extract of Stachytapheta jamaicencis (L.) Vahl. leaves to validate the folkloric claim as an external anti-bacterial agent using the crude extract obtained by macerating the powdered dried leaves with 95% ethanol for 72 hours, and concentrated in vacuo. Phytochemical screening using the standard qualitative technique revealed the presence of flavonoids, phenolics, saponins, tannins and terpenoids. Paper disc diffusion method was applied in evaluating the antibacterial activity of the ethanolic extract against a common bacterium, Staphylococcus aureus. The activitydetermination resulted to zone of inhibition between 5 -26 millimeters. The results indicate that the leaf extract has a potential activity against the test organism and could be attributed to the presence of the secondary metabolites indicated.