Browsing by Author "Hegedus, Attila"

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Estimation of Certain Physical and Chemical Fruit Characteristics of Various Cherry Laurel (Laurocerasus Officinalis Roem.) Genotypes
(Amer Soc Horticultural Science, 2011) Celik, Ferit; Ercisli, Sezai; Yilmaz, Suzan O.; Hegedus, Attila
Fruits of 11 cherry laurel (Laurocerasus officinalis L.) genotypes grown in a single location, Rise province, were analyzed for their fruit characteristics. Both physical and chemical characteristics of cherry laurel fruits were significantly influenced by genotypes. Fruit weight, the number of fruits per cluster, and flesh per seed ratio ranged between 1.87 and 4.01 g; 9.21 and 21.05, and 5.54 and 9.33, respectively. The genotypes R06 and R09 had the highest total anthocyanin [205 and 202 mg/100 g fresh weight (FW), respectively] and R06 and RI I had the highest total phenolic contents (503 and 481 mg/100 g FW, respectively). Total carotenoid and vitamin C contents ranged from 207 to 278 mg/100 g FW and 2.1 to 4.1 mg/100 g FW, respectively. Soluble solid content (SSC), crude fiber, crude protein, pectin, ash, and pH of genotypes fell between 9.64% and 17.10%; 0.44% and 0.85%; 1.44% and 2.09%; 0.20% and 0.47%; 0.25% and 0.71%, and 4.30 and 4.93, respectively. Data demonstrated that the great variations observed in the physical and chemical characteristics of individual cherry laurel genotypes might be explained by genotypic effect because all genotypes grew under the same ecological conditions. The investigated genotypes seemed to be perspective in health promotion.
Organic Acids, Sugars, Vitamin C Content and Some Pomological Characteristics of Eleven Hawthorn Species (Crataegus Spp.) From Turkey
(Soc Biolgia Chile, 2014) Gundogdu, Muttalip; Ozrenk, Koray; Ercisli, Sezai; Kan, Tuncay; Kodad, Ossama; Hegedus, Attila
Background: The Hawthorn (Crateagus sp.) mostly occurs around the temperate region of the world with a high number of species, producing a fruit with numerous beneficial effects for human health. The aim of the study was to determine organic acid and sugar contents in the fruit of a number of hawthorn species grown in Erzincan province of Turkey. Results: Citric acid was the predominant organic acid in all hawthorn species and C. pseudoheterophylla had the highest citric acid content (23.688 g/100 g). There were not statistically significant differences among hawthorn species (except C. atrosanguinea Pojark) in terms of fumaric acid content. C. pontica C. Koch had a higher content of vitamin C (9.418 mg/100 g) compared to other species. Fructose was the predominant sugar component in all species and C. monogyna subsp. monogyna Joiq had the highest fructose content (18.378 g/100 g). Conclusions: The high fruit quality of the studied species indicates the importance of this fruit in human nutrition as a natural source. The study revealed that there were differences in terms of fruit characteristics among hawthorn species and thus better quality hawthorn genotypes can be selected within the species. Hence, this study is considered to be a valuable reference for forthcoming studies. The high fruit quality of the studied species indicates the importance of this fruit in human nutrition as a natural source.
Some Phytochemical and Antioxidant Characteristics of Wild and Cultivated Blackberry (Rubus Caucasicus) Fruits
(Wfl Publ, 2010) Yildiz, Hilal; Sengul, Memnune; Celik, Ferit; Hegedus, Attila; Ercisli, Sezai; Tosun, Murat
Fruit weight, soluble solid content (%), vitamin C, titratable acidity, total phenolic content, total anthocyanin and total antioxidant capacity of wild and cultivated blackberry (Rubus cauctisicus) fruits were determined. Determination of antioxidant activities by beta-carotene-linoleic acid, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging and ferric reducing antioxidant power (FRAP) assays resulted in average 85.17%, 34.90 mu mol/g fw DPPH and 50.70 mu mol TE/g fw FRAP, respectively. In general, wild materials exhibited higher antioxidant activity in all three methods used. The average total phenolic contents of wild genotypes were 381 mg gallic acid equivalent in 100 g fresh weight basis (GAE/g fw) indicating higher value than cv. Chester (310 mg GAE/100 g fw). The genotype ART4 had the richest amount of anthocyanin with an average of 168 mg cy-3-glu/g fw. beta-carotene-linoleic acid, FRAP, total phenolic and total anthocyanins were significantly correlated with each other. The present results suggest that blackberry fruits, in particular, wild ones, are very rich in antioxidants and indicate their importance for human healthy.