IN VITRO ESTIMATION OF ANTIOXIDANT ACTIVITY OF SELECTED MEMBERS OF POACEAE AND CYPERACEAE FAMILY
Garima Gupta* and Sumit Kumar
ABSTRACT
The vegetable oils are an essential component of every household, but due to their short term stability the need to enhance their shelf life for long term storage is an important area of research. The vegetable oils which are fortified with synthetic antioxidants are shown to have significantly higher stability in terms of oxidation but their side effects at higher concentrations limit their use in food products. This study aims to determine the effect of various Poacea and Cyperaceae family species extract on lipid oxidation inhibition of vegetable oils. First the five selected plant species were screened for their antioxidant activity. This was done my making water extract of all these plants and then testing them for their phenolic content, flavonoid content and reducing capacity. The species showing maximum antioxidant activity was combined with all the other species to check the antioxidant activity of the combinations. The leaf extract of combination of Vetiveria zizanioides and Cynodon dactylon showed the highest amount of antioxidant activity. Thus this extract combination can be used as a food supplement in order to enhance the shelf life of various edible oils.
Keywords: Vetiveria zizanioides, Phenolics, polyphenolic, nutraceutical.
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