Preliminary phytochemical screening and antimicrobial evaluation of three medicinal plants used in Nigeria (original) (raw)

2011, African Journal of Traditional, Complementary and Alternative Medicines

The phytochemical constituent and some antioxidant indices of ethanolic leaf extract of Azadirachtaindica were evaluated. A. indica.was found to contain some secondary metabolites like alkaloids, phenolic compounds, terpenoids, flavonoids, steroids and reducing sugar. The total phenolic content, reducing power and H 2 O 2 scavenging activity are 3.04±0.03mg/g garlic acid equivalent, 0.45±O.01 and 10.15± 1.14 respectively. This shows that the plant has antioxidant activity, the phytochemical constituent explain why the plant has been used as antimicrobial agents for preventing and treating microorganisms infections.

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