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Shadan Khorshidi,Gholamhossein Davarynejad,Ali Tehranifar,Esmaeil Fallahi 한국원예학회 2011 Horticulture, Environment, and Biotechnology Vol.52 No.5
The trend of postharvest changes in sweet cherry (Prunus avium) cv. Siah-e Mashhad, sour cherry (Prunus cerasus)cv. Érdi Bőtermő and Iranian local cultivar named Albaloo Mohallai were investigated. The traits were recorded included antioxidant activity, total anthocyanin and phenolic content, flesh firmness, titratable acidity (TA), soluble solids concentration (SSC), Juice pH, SSC/TA ratio and percentage of weight loss. They were evaluated at harvest after 15, 30, 45 and 60 days of storage in packages with modified atmosphere (MAP) and regular atmosphere (RAP) (control) and refrigerated at 0± 1℃. The results showed that the fruits packed in modified atmosphere had better quality than the ones packed in air due to higher SSC, TA, firmness, and lower pH, SSC/TA ratio and weight loss. All quality attributes diminished with storage time,while fruit firmness did not exhibit any particular trend during storage. The trends of total anthocyanin, phenolic content, and antioxidant activity during storage varied, depending on the cherry type. The negative correlation between antioxidant activity and fruit deformation (r from -0.49 to -0.72) was found.
Gholamhossein Davarynejad,Shadan Khorshidi,J?zsef Ny?ki,Zolt?n Szab?,Judit Gal-Remennyik 한국원예학회 2010 Horticulture, Environment, and Biotechnology Vol.51 No.6
The study was undertaken to elucidate the understanding of biochemical and physical properties of nine fresh and dried apricot cultivars (‘Jumbo cot’, ‘Tom cot’, ‘Goldstrike’, ‘Goldbar’, ‘Bergeron’, ‘Bergarouge’, ‘Sweet cot’, ‘Yellow cot’ and ‘Zebra’) cultivated at the Boldogk?v?ralja Commercial Orchard of Debrecen, Hungary. Flesh firmness, skin color, total soluble solid content, titratable acidity, and antioxidant capacity were measured by ferric reducing antioxidant power (FRAP) method and chemiluminescence assay. Fruits were harvested at commercial maturity stages. Fresh apricot and the stoned, non sulphurated fruits dried with hot air for 24 hours were used for measuring antioxidant activity. The contents of antioxidant compounds were analyzed according to a factorial experiment with completely randomized design. All measured characteristics were significantly different among cultivars. ‘Goldbar’ had the highest lipophilic antioxidant capacity (ACL), hydrophilic antioxidant capacity (ACW) and FRAP value. Drying changed the correlation between assays.