Quality Evaluation of Winery By-Products from Ionian Islands Grape Varieties in the Concept of Circular Bioeconomy

The aim of this work was the study and evaluation winery by-products in framework circular bioeconomy. Grape seeds grape skins from Greek Ionian Islands varieties were analyzed an attempt to provide appropriate basis for model development their sustainable exploitation at a local or regional level. collected directly wineries immediately after vinification process by chromatographic spectroscopic techniques. In addition, annual production yields estimated. seed oil quality evaluated based on fatty acid methyl ester (FAME) composition. skins’ phenolic fraction extracted eco-friendly, nontoxic water-glycerol solvent system detected qualitatively. total content (TPC) antioxidant activity (ABTS, DPPH) measured. Based estimated yields, our results demonstrate that have potential promote cyclical bioeconomy modern economic growth will reduce environmental costs as they can be reused whole material foods, dietary supplements, cosmetic ingredients, food colorants, preservatives.