Abstract
ANTIOXIDANT ACTIVITY AND PHYTOCHEMICAL STUDIES OF SIX THERAPEUTIC PLANTS WITH TOTAL PHENOLIC CONTENTS

P. Shivakumar Singh and G. M. Vidyasagar*

ABSTRACT

These free radicals produced by the biochemical reaction in human body and cause the structural and functional damage to the neuron, protein, lipids, nucleic acid and cellular molecules The present study intended to evaluation the occurrence of preliminary phytochemicals and free radical scavenging potentials of leaves extracts of therapeutic plants like Annona squamosa L. (AS) Argemone Mexicana L. (AM) Calotropis gigantia Br. (CG) Cassia auriculata L. (CA) Ficus religiosa L. (FR) Jatropha curcas L. (JC) and their correlation with the total phenolic contents (TPCs). The free radical scavenging activity of ethanolic extracts were assessed by 2, 2‑diphenyl‑1‑picrylhydrazyl assay and total phenolic contents by Folin‑Ciocalteu method. The percentage radical scavenging activities of samples were compared to the standard BHA. The leaf extract of Cassia auriculata L. showed marked quantity of phenolics and promising antioxidant activity followed by other extracts. The reductive ability of the extracts was found to increase in a concentration dependent. The results suggested that the phenolic compounds in extracts are most likely to be responsible for the pragmatic free radical scavenging of antioxidant activity.

Keywords: Therapeutic plants, antioxidant activity, 2, 2?diphenyl?1?picrylhydrazyl assay,phytochemal, total phenolics.


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