Published in Scientific Papers. Series B, Horticulture, Volume LXI
Written by Gültekin ÖZDEMIR, Mihdiye PİRİNÇÇİOĞLU, Göksel KIZIL, Murat KIZIL
Grape cultivars (Vitis vinifera L.) are believed to have health benefits due to their antioxidant activityand phenolic content. Thus, scientists have conducted research to explore their positive effects on many human diseases. The aim of this study was to determinetotal phenolic and flavonoid contents of berry pulp, seed and skin of Öküzgözü and Boğazkere red wine grape cultivars grown in Turkey. In conclusion, it was found that total phenolic (μg GAE/mg) and flavonoid content in Öküzgözü and Boğazkere grape cultivars showed importantdifferences according to the berry skin, pulp, seed and research years. The highest phenolic content was found in Öküzgözü berry pulp 803.00 μg GAE/mg in 2012 year. When the flavonoid amounts are compared, it has been determined that the total flavonoid amount varied from 5.08 μg QUE/mg to 111.55 μg QUE/mg. The highest flavonoid content was found in the Öküzgözü grape berry skin in 2011 year (111.55 μg QUE/mg). This study showed that these grapes are a potential source of phenolic and flavonoid compounds. It can be concluded that selected grape varieties and their parts can be considered a good source of phenolics.
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