Determination of polyfenolic compound and copper in grape seeds (Vitis vinifera) cultivated Czach Respublic
Author |
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Horníčková, Štěpánka |
Date | Volume | Issue | Start Page | End Page |
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2013 | 6 | 2 | 98 | 100 |
The rest of agricultural production are often overlooked as source of raw material with high added value biologically active substances. Hight content of waste from wine must is created from wine production from grapes. Grape Pie, containing seeds, hulls and stem. These are rich not only in content of polyphenolic substances, but also in vitamin E, which has high antioxidant activity. The content of polyphenols is influenced by external factors, and is thus not only depend on variety, but also on the conditions, location and method of cultivation. Although the content of polyphenols is generally higher in red vine varieties, our determination didn´t confirm this trend. The lowest content of total polyphenols was detected in Cabernet Sauvignon afloat 31,125 mg.kg -1. The highest content of polyphenols was determined by Muller Thurgau 152 586 mg.kg -1. On average, a higher content of polyphenols was for white grapes. This suggests that the content of polyphenols is also important in white grape varieties. Vineyards fertilize by fertilizers containing copper, in the past. The average content of copper in the Bohemia wine region is lower (5.72 mg.kg-1) than in Moravian (9.91 mg.kg -1).
Conference | ||||
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2013-11-28 | 2013-11-29 | Kaunas | LT |