Abstract
In the present study leaves of an important medicinal plant Vitex negundo was subjected to a phytochemical screening, flavonoid content and characterization of flavonoids moiety of Vitex negundo leaves extracts. The petroleum ether, chloroform, ethanol, methanol and aqueous extracts were prepared, and further screened for preliminary phytochemical test. The quantification of quercetin was investigated in ethanol extract by HPLC study. Preliminary phytochemical revealed the presence of flavonoids and phenolic compounds in ethanol, methanol and aqueous extracts of leaves of Vitex negundo. The ethanol, methanol and aqueous extracts investigated for antioxidant activity, and ethanol extract indicates the presence of highest quantity of flavonoids and polyphenol compared to other extracts. The HPLC chromatogram confirmed the flavonoids moiety was quercetin in ethanol extract, and the yield of quercetin was 42.18 ng/ml.
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