الفهرس 
Literature ReviewOnly 14 pages are availabe for public view
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Abstract
Hellenic vineyard is composed of a diversity of native grape varieties (Vitis vinifera sp.) that possess distinctively different anthocyanin potential. However, detailed examination of the pigment composition has not been carried out, and therefore the actual anthocyanin profile of some varieties is poorly known. In order to investigate the pigment content of several widely cultivated varieties, and to ascertain whether anthocyanins account for antioxidant activity in grape berries, six prevalent anthocyanins were determined in grape extracts from thirteen native and four of the so-called “international” cultivars grown in Greece. The analysis showed that anthocyanin content varied from 85.7 to 1914.0 mg kg-1 fresh berry weight, the mean being 731.7 mg kg-1. The cultivars Mandilaria, Mavrodafni and Vapsa contained significantly higher amounts of total anthocyanins compared with all the other cultivars tested (P < 0.001), as opposed to Liatiko, which was particularly poor in anthocyanins (P < 0.001). Assessment of the antiradical activity of extracts using the stable DPPH• radical revealed a low and statistically insignificant correlation (r2 = 0.072, P > 0.05) with total anthocyanin content, suggesting that other constituents are likely to exert strong antioxidant effects in grapes.