| dc.description.abstract | The volume of the grape waste produced directly relates to the volume of
grapes pressed and in turn depends on the specific climatic conditions of the relevant
vintage. The aim of this work is to evaluate vinegrape leaves as a potential source of
natural antioxidants – polyphenols for their possible use as dietary supplement or food
antioxidants. To this purpose antioxidant activity and contents of phenolic compounds
of the leaves extracts of five grape varieties of Vitis vinifera L (Vranac, Prokupac,
Merlot, Gamay and Italian Rizling), grown in southern Serbia were investigated. The
analysis show high content of polyphenols reflecting their high antioxidant activity (R2
= 0.9819, p<0.01). According to the obtained results, the leaves extracts, can be
considered rich natural source of phenolic compounds with good antioxidant properties. | en |
