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    Agro-morphological and biochemical characteristics of european cranberrybush (viburnum opulus l.)
    (Publ House Bulgarian Acad Sci, 2018) Ersoy, Nilda; Ercişli, Sezai; Akın, Melekşen; Gündoğdu, Müttalip; Çolak, Ayşen Melda; Ayed, Rayda Ben
    The study aims to determine some agro-morphological (fruit weight, fruit flesh ratio, fruit skin colour, number of fruits per raceme, number of racemes per bush), and biochemicals (vitamin C, soluble solid content, organic acids, total phenol, total anthocyanin, total flavonoid and antioxidant capacity) in fruits of ten promising European cranberrybush (Viburnum opulus L.) genotypes grown in Erzurum province in Turkey. The results showed genotype-specific differences in most of the agro-morphological, biochemical and bioactive characteristics. The genotypes had fruit weight, number of fruits per raceme and number of racemes per bush between 0.58 and 0.80 g; 38.4 and 58.2 and 392 and 543, respectively. The vitamin C and soluble solid content were ranged from 33 to 42 mg per 100 g and 11.3 to 13.1%. Total phenol, total anthocyanin and total flavonoid content ranged from 703 to 911 mg gallic acid equivalent per 100 g fresh weight, 22-48 mg per 100 g expressed cyanidin-3-rutinoside, 187-302 mg routine equivalent per 100 g fresh weight. Genotype ERZ-08 had the highest antioxidant capacity as 32.70 mu mol trolox equivalents per gramme based on FRAP assays.
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    Evaluation of European Cranberrybush (Viburnum opulus L.) genotypes for agro-morphological, biochemical and bioactive characteristics in Turkey
    (Polish Soc Horticultural Sci, 2017) Ersoy, Nilda; Ercişli, Sezai; Gündoğdu, Müttalip
    The study evaluated some agro-morphological (fruit weight, fruit flesh ratio, fruit skin colour, number of fruits per raceme, number of racemes per bush), biochemical (vitamin C, soluble solids content, organic acids), and bioactive (total phenolics, total anthocyanins, total flavonoids, and antioxidant capacity) characteristics of the fruit of a number of selected European Cranberrybush (Viburnum opulus L.) genotypes grown in the Sivas province of Turkey. To evaluate the antioxidant capacity, ferric reducing antioxidant power (FRAP) assays were performed. The results showed genotype-specific differences in most of the agro-morphological, biochemical and bioactive characteristics. The range of fruit weight, number of fruits per raceme, and number of racemes per bush was between 0.67 and 0.82 g, 40.7 and 57.1, and 470 and 581, respectively. The highest vitamin C and soluble solids contents were found in the fruits of genotypes SIV-9 and SIV-6 as 39 mg per 100 g and 12.6%, respectively. Tartaric acid was the main organic acid in all the genotypes; it ranged from 120 to 144 mg per 100 g of fruit FW. Total phenolic, total anthocyanin and total flavonoid contents ranged from 621 to 987 mg gallic acid equivalents per 100 g, 15 to 51 mg cyanidin-3-rutinoside equivalents per 100 g, and 202 to 318 mg rutin equivalents per 100 g, respectively. Genotype SIV-10 had the highest antioxidant capacity (34.90 mu mol Trolox per g, based on FRAP assays). The present study shows the potential of the evaluated European Cranberrybush genotypes for improving the nutritional value through germplasm enhancement programmes.
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    Phytochemical and antioxidant diversity in fruits of currant (ribes spp.)
    (Univ Agr Sci & Veterinary Med Cluj-Napoca, 2018) Ersoy, Nilda; Küpe, Muhammed; Gündoğdu, Müttalip; İlhan, Gülce; Ercişli, Sezai
    Currant successfully grown in a wide area in Turkey due to its environmental plasticity. The aim of this study is to determine variations in phytochemical contents and antioxidant capacity from certain currant cultivars and genotypes commercially grown in Turkey. Fruit samples taken from two red currant cultivars ('Red Lake', 'Rovada') and four black ('S. Nigrum', 'Tokat 2', 'Tokat 3' and 'Tokat 4') and the genotype 1310 (red currant) were subjected to analysis for phenolic compounds (protocatechuic, vanillic acid, ellagic acid, rutin, quercetin, gallic acid, catechin, chlorogenic acid, caffeic acid, syringic acid, p-coumaric acid, o-coumaricacid, phloridzin and ferulic acid), organic acids (citric acid, tartaric acid, malic acid, succinic acid, and fumaric acid), vitamin C, antioxidant capacity (Trolox equivalent antioxidant capacity [TEAC] assay) and sugars (glucose, fructose and sucrose). Results showed that phytochemical contents and antioxidant capacities statistically varied among currant cultivars and genotype (p < 0.05). Caffeic acid was determined only in the genotype 1301. Ellagic acid (1.680 mg/100 g), gallic acid (2.022 mg/100 g), rutin (4.649 mg/100 g), catechin (8.005 mg/100 g) and chlorogenic acid (2.721 mg/100 g) were found the highest values in 'Tokat 3', 'Red Lake', 'Tokat 3', 1310 and 'S. Nigrum', respectively. Citric acid, fumaric acid, and malic acid were dominant among organic acids for all cultivars and the genotype 1310. Contents of glucose and fructose among sugars were measured to be higher than content of sucrose for all cultivars and the genotype. The highest antioxidant capacity was detected in cultivar of 'Rovada' and the genotype 1310.