In this study we investigated preliminary phytochemical, total phenolic, alkaloid content and In-vitro antioxidant activity of hexane, ethyl acetate, ethanol (70%v/v) and methanol extracs of root bark of Rauvolfia tetraphylla from Araku, Andhra Pradesh, India. Rauvolfia tetraphylla root bark revealed the presence of steroids, triterpenoids, flavonoids, glycosides, carbohydrates and saponins but do not give the positive results for tannins, oils, quinines and amino acids. The ethanol (70%v/v) extract has more phenolic content than other extracts and the methanol extract has more alkaloidal content than other extracts. The selected plant extracts were produced concentration dependent percentage inhibition of superoxide radical and produced maximum activity at a concentration of 320 µg and there after the percentage inhibition were raised gradually to its maximum level with higher concentrations. Among the four types of R.tetraphylla extracts, the methanolic extract showed better activity than remaining extracts at 320 µg concentrations.
Loading....