THE EFFECT OF DIFFERENT AMERICAN VINE ROOTSTOCKS ON THE PHYTOCHEMICAL CHARACTERISTICS IN DRIED BANAZI BLACK GRAPE (VITIS VINIFERA L.)

Abstract

Banazi Black grape which is almost never consumed freshly is a very important, seed bearing, local type which is directly dried in the sun with its cluster without any processing. Ungrafted (5 years old and over 40 years old) and grafted (41B, 99R, 1103P and 110R) Banazi Black grape varieties which were 5 years old were used in the study conducted in Turkey, Malatya, Yesilyurt district, Konak town. The grapevines in the farmer vineyards, grown in dry conditions, were established in the form of blocks, serpene cultivation was applied on the stocks, and cane training was made. The photochemical characteristics of the dried grape belonging to the rootstocks used in 5 year-old Banazi Black grape which were ungrafted (5 and 40 years old ungrafted) and grafted with 41B, 99R, 1103P, 110R rootstocks were investigated in this study. It was determined from the analyzed phenolic compounds that gallic acid was 4.10-14.43 mg/kg; catechin was 146.87-306.87 mg/kg, rutin was 38.96-78.15 mg/kg, naringin was 22.54-50.97 mg/kg, phloridzin was 40.03-107.72 mg/kg, and quercetin was 0.47-1.67 mg/kg. Total antioxidant capacity in total phenolic substance rootstocks was determined to be 0.19-0.22 mg trolox equivalent/g; gallic acid/g was 7.51-21.66 mg. The amount of resveratrol was between 0.19-1.30 mg/kg among the rootstocks. The differences between the rootstocks were statistically significant in terms of phenolic compounds. 40 year-old ungrafted vinestock took a higher value when compared to the other rootstocks in terms of phenolic compounds.