Comparative Studies on Phytochemical Screening and Antioxidant Activity of Zehneria scabra (Linn. F) Soud and Zehneria maysorensis (Wight & Arn.) Leaves
Keywords:
Zehneria scabra, Zehneria maysorensis, Phytochemica, AntioxidantAbstract
The present study was carried out to evaluate antioxidant activity of petroleum ether, methanol and water extracts of Zehneria scabra and Zehneria maysorensis. The preliminary phytochemical tests showed the presence of alkaloid, tannin, saponins, phenol, flavonol glycosides, cardiac glycosides, phytosterol, fixed oils and fats, gums and mucilage. A dose dependent antioxidant activity was observed in case of extracts. Phenolics (36.6 g gallic acid equivalents (GAE)/100 g extract), tannin (21.6 g GAE/100 g extract), and flavonoid content (67.5 g rutin equivalents/100g extract) were found to be highest in acetone extract. Zehneria scabra and Zehneria maysorensis both methanol extract showed maximum antioxidant activity in DPPH (21.6 and 40.87
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