EVALUATION OF TOTAL PHENOLIC, FLAVONOID AND ANTIOXIDANT ACTIVITY OF SAGITTARIA SAGITTIFOLIA L

Abstract

The present investigation is a study of the Leaves of Sagittaria sagittifolia L. with respect to potential as antioxidant in relation to their total content of Phenolic and Flavonoids compounds in five different organic solvents. The amounts of total phenols were analyzed with the Folin- Ciocalteu Reagent. Gallic acid was used as a standard compound and the total phenols were expressed as mg/g gallic acid equivalent. The antioxidant activity of extracts ^{were expressed as percentage of DPPH radical inhibition and IC}50 ^{values in percentage ranged from 18.86± 0.23 % to 86.65 ± 0.43 % Maximum} phenolic content was found in the methanolic extract (36.4± 0.30) where as maximum flavonoids are detected in ethanolic extract (16.60± 0.01). The high contents of phenolic and flavonoids compounds indicated that these compounds contribute to the antioxidant activity.