İŞÇİ, Burçak Ege University - Faculty of Agriculture - Department of Horticulture, Turkey , ŞEN, Fatih Ege University - Faculty of Agriculture - Department of Horticulture, Turkey , GÜÇLÜ ÖZDEMİR, Aylin Atatürk Soil, Water and Agricultural Meteorology Research Station, Turkey , KAÇAR, Ege Ege University - Faculty of Agriculture - Department of Horticulture, Turkey , ALTUN, Aşkın Ege University - Faculty of Agriculture - Department of Horticulture, Turkey

Effects of Modified Atmosphere Packing (MAP) and Cold Treatment on Organically Grown Table Grape Cultivars

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This study was conducted to determine changes in storage of organically grown table grape cultivars; Vitis vinifera L. cv. Buca Razakı, Vitis vinifera L. cv. Çeşme Pembesi, Vitis vinifera L. cv. Siyah Gemre, Vitis vinifera L. cv. Kırmızı Şam, and Vitis vinifera L. cv. Pek Üzümü. Each cultivar was harvested at optimum time and pre-cooled at 00C for 24 hours. Samples in MAP were placed in plastic cases and kept at -0.50C and 90% relative humidity (RH) for 60 days. Quality changes that took place throughout the storage period were assessed at 15- days intervals through weight loss, stem browning, fruit removal force, berry surface color (CIE L*, a*, b*), total soluble solids content, titratable acidity, sensory properties, and total phenolic content. Due to the increase in decayed berries and adverse effects on the quality, all tested cultivars could be stored successfully for 30 days. Distinctive levels of stem browning in all varieties except Vitis vinifera L. cv. Çeşme Pembesi on the 60th day of storage are effective in limiting the marketability of these grapes. MAP technology could be proven as an economical application for organic grapes. MAP was aimed to investigate as an alternative mean for chemical based treatment such as SO2.

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Turkish grape varieties , organic agriculture , storage , modified atmosphere packaging (MAP) , quality , total phenolic content

The Journal Of Ege University Faculty Of Agriculture

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