Meryem KARA, SALİHA DİNÇ, Fatih ER, Oktay YILDIZ, Hüseyin ŞAHİN, Zehra CAN

Bazı Hibrit Domates Çeşitlerinin Biyokimyasal Parametrelerinin ve Uçucu Bileşenlerinin Karşılaştırılması

Meyve ve sebzelerin kalite değerlendirmelerinde genellikle şekil, renk, irilik ve verim gibi morfolojik ve kalite parametreleri dikkate alınmaktadır. Bununla birlikte son zamanlarda tüketicilerin yüksek oranda biyoaktif bileşenlere, minerallere ve kabul edilebilir aromaya sahip gıdalara olan ilgisi artmıştır. Hem düzgün morfolojik özelliklere sahip hem de yüksek oranda biyoaktif bileşenlere sahip meyve ve sebzelerin yetiştirilmesine katkıda bulunmak amacıyla Türkiye’de yetiştirilen iki hibrit domates çeşidinin (Ege F1 ve Alida F1) biyokimyasal parametreleri (fenolik bileşenler, askorbik asit, β-karoten, likopen, mineraller) ve uçucu bileşenleri açısından karşılaştırılmıştır. Alida F1 yüksek oranda likopen ve mineral değerlerine sahipken, Ege F1 fenolik bileşenler ve uçucu bileşenleri açısından dikkate değer bulunmuştur. Her iki çeşidin askorbik asit içerikleri 7.13-11.94 mg 100 g-1 fw arasında değişmiş ve Ege hibritinin askorbik asit değeri kayda değer bulunmuştur. Klorojenik asit, kafeik asit, p-kumarik asit, rutin ve trans ferulik asit her iki çeşitte bulunan ana fenolik bileşenlerdir. Potasyum (K) (% 4.09), her iki hibrit domateste bulunan baskın mineraldir. Hekzenal, test edilen uçucu aroma bileşenleri arasında en yüksek konsantrasyona sahip bileşen olup bunu 2-hekenal, (6-methyl)-trans5-Hepten-2-one izlemiştir. İki çeşidin de biyokimyasal parametrelerinin ve uçucu aroma bileşenlerinin karşılaştırılması, yetiştiricilere istenen özelliklere ve besinsel değere sahip domateslerin yetiştirilmesi ve çeşit seçimine fırsat verecektir.

Comparison of Biochemical Parameters and Volatile Compounds of Some Hybrid Tomato Varieties

Evaluating morphological and quality parameters such as shape, colour, size and yield are all common practices when assessing the quality of fruit and vegetables. In recent times, however, consumer interest in foods with high levels of bioactive components, high mineral content and acceptable flavor has increased considerably. In order to make a contribution to the production of fruit and vegetables with excellent morphological properties and high levels of bioactive compounds, two different hybrid tomato varieties (Ege F1 and Alida F1) cultivated in Turkey were compared in terms of their biochemical parameters (phenolic compounds, ascorbic acid, β-carotene, lycopene, minerals) and volatiles. While the Alida F1 was rated the highest for lycopene and mineral values, the Ege F1 was outstanding in terms of phenolic compounds and volatiles. Ascorbic acid content of both cultivars ranged from 7.13 to 11.94 mg 100 g-1 fw. The quantity in the Ege hybrid was remarkable. Chlorogenic acid, caffeic acid, p-coumaric acid, rutin and trans ferulic acid were the main phenolic compounds in both cultivars. Potassium (K) (4.09%) was the most predominant mineral in both hybrid tomatoes. Hexenal had the highest concentration value among tested volatiles followed by 2-hexenal, (6-methyl)-trans5-Hepten-2-one. Comparison of biochemical parameters and volatiles of both varieties will give breeders an opportunity to choose the desired traits of tomatoes to cultivate for both taste and nutritional value.

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