Abstract

The present study was carried out to screen phyto constituents and evaluate the antioxidant activity of Phyllanthus emblica, Ananas comosus, Momordica charantia extracts and its potential as preservative. The antioxidant effects were evaluated for radical scavenging activity using FRAP with certain modifications. The choloform extract of Momordica charantia revealed highest free radical scavenging activity. Similarly the ethanolic extracts of Phyllanthus emblica has also possess significant scavenging effect. Total phenolic content of the extracts Phyllanthus emblica, Ananas comosus, Momordica charantia were determined by Follins Ciocalteau method with certain modifications. Positive correlations were found between Total Phenolic Content of the extracts and Antioxidant activity. The Phytochemical screening suggests that phenols and flavonoids of these extracts might provide a considerable antioxidant potential. Quantification of ethanol extract of Phyllanthus emblica by HPLC method revealed the Vitamin C content in them, which serve as a Preservative agent. Addition of Vitamin C content of Phyllanthus emblica, Ananas comosus, Momordicacharantia in commercial foods will increase the Antioxidant content and may have a potential as a natural preservative.

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