Bioactive compounds and fatty acid profile of grape pomace

Abstract

The aims of experiment were to determinate the values of bioactive compounds and fatty acid profile in white dried grape pomace Vitis vinifera “Pinot Gris”. Grape pomace originated from winery of the University farm Kolíňany, centre Oponice. The dry matter and crude fat content was determined after the preparation of samples. The dried grape pomace contained 94.2% of dry matter and 8.40% of crude fat. This research was conducted on antiradical activity (DPPH), total polyphenols, total phelinolic acids, total flavanoids and fatty acid profile. The results confirmed that the grape pomace is considerable source of bioactive compounds, with high antioxidant activity, value of total phenolic acids and total polyphenols. From fatty acids profile are grape pomace significant source of polyunsaturated fatty acids, mainly essential linoleic acid (68.62 g 100 g-1 of fatty acids). They are characterized by wide ratio of n6/n3 fatty acids.

Keywords

• grape by-product
• fatty acid
• bioactive compound
• nutrition