A Study of Antioxidant Properties of Some Varieties of Grapes (Vitis vinifera L.)

Authors: Kedage, Vinayak¹; Tilak, Jai²; Dixit, Ghanasham¹; Devasagayam, Thomas²; Mhatre, Minal³

Source: Critical Reviews in Food Science and Nutrition, Volume 47, Number 2, February 2007 , pp. 175-185(11)

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Abstract:

Grapes (Vitis vinifera L.) are a major fruit crop in the world. Grapes seem to confer health benefits due to their antioxidant activity. We have evaluated the antioxidant potential of 11 grapes varieties from India and nearby Asian countries. The assays employed involve different levels of antioxidant action like ferric reducing antioxidant power, radical scavenging by 1,1-diphenyl-2-picrylhydrazyl, ferrylmyoglobin/2,2'-azobis-3-ethylbenzthiazoline-6-sulfonic acid, oxygen radical absorbance capacity (ORAC), and inhibition of lipid peroxidation. The total phenolic and flavonoids contents were also estimated. Our study indicates that cv. Mango is the most potent followed by Sharad Seedless. Ethanolic extracts were found to be more effective than aqueous extracts. Cv. Sharad Seedless, Mango, and Manikchaman also had high ORAC values. Their HPLC analysis showed the presence of various antioxidant polyphenols. In conclusion our studies identified some varieties of grapes with high antioxidant activities and showed that their high antioxidant potential may be due to their phenolic and flavonoid contents.

Keywords: grapes; antioxidant; phenolics; flavonoids; lipid peroxidation; ORAC; HPL; TBARS; TEAC

Document Type: Research article

DOI: http://dx.doi.org/10.1080/10408390600634598

Affiliations: 1: Department of Botany, Shivaji University, Kolhapur, Maharashtra, India 2: Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai, India 3: Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, India

Publication date: 2007-02-01