Characteristic of pits and skins of organic colored grape varieties

The paper presents the physical, biological and chemical characteristics of the pits and skins of some types of organic varieties of coloured grapes cultivated in the wine–growing and wine–growing zone of Imereti. The antioxidant activity of the solid parts of the grape raw materials of the Zeibel, Jvarisula, Ojaleshi-clone, and Isabella varieties and the prospects for the use of their extracts with a therapeutic target in food additives were studied. Grape seeds and skin are rich in phenolic compounds and anthocyanin glycosides, respectively, they are of interest to our research.