Bu çalışmada; Starking Delicious, Amasya, Granny Smith ve Golden Delicious elma çeşitlerinin kalite özellikleri ve aroma profilleri belirlenmiştir. Titre edilebilir asitliği en yüksek ve pH değeri en düşük olan elma Granny Smith iken kurumadde ve suda çözünür kurumadde (SÇKM) değeri en yüksek olan Amasya elmasıdır. Aroma, elmalar için önemli bir kalite kriteridir ve tüketici beğenisinde büyük rol oynamaktadır. Elmaların aroma bileşimi headspace yöntemi ile gaz kromatografisi-kütle spektrometrisi (GC-MS)’nde belirlenmiştir. Elmalarda 24 ester, 5 yüksek alkol, 1 aldehit, 1 terpen ve 9 tanımlanamayan olmak üzere 40 farklı uçucu bileşik tespit edilmiştir. Starking Delicious’un %80.00’ını, Amasya’nın %76.55’ini, Golden Delicious’un %62.82’sini oluşturan esterler elmalardaki başlıca aroma grubudur ve esterler genellikle tüketicilerin tercih ettiği kokuları vermektedir. Bütil asetat, 2-metil bütil asetat, hekzil asetat, (E,E)-α-farnesen, etanol ve etil 2-metil bütanoat elmalarda en yüksek oranlarda belirlenen aroma bileşikleri olmuştur. Bu bileşikler elmanın aromasına muz, meyvemsi, çilek, tatlı, armut, çimen ve alkol gibi koku katkıları yapmaktadır.
In this study; quality characteristics and volatile compounds of Starking Delicious, Amasya, Granny Smith, and Golden Delicious apple cultivars were determined. Granny Smith has the highest titratable acidity and the lowest pH value, while the Amasya apple has the highest dry matter and water-soluble solids. Aroma is an important quality criterion for apples and its has a big role in consumer taste. The aroma composition of apples was determined in gas chromatography-mass spectrometry (GC-MS) using the headspace method. Forty different volatile compounds, including 24 esters, 5 higher alcohols, 1 aldehyde, 1 terpene and 9 unidentified volatile compounds, were detected in apples. Esters, which make up 80.00% of Starking Delicious, 76.55% of Amasya and 62.82% of Golden Delicious are the main flavor group in apples and esters generally impart aroma compounds preferred by consumers. Butyl acetate, 2-methyl butyl acetate, hexyl acetate, (E,E)-α-farnecene, ethanol and ethyl 2-methyl butyrate were the aroma components determined at the highest rates in apples. These compounds contribute to the aroma of apples such as banana, fruity, strawberry, sweet, pear, grass and alcohol.
Primary Language | Turkish |
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Subjects | Food Engineering |
Journal Section | Research Articles |
Authors | |
Publication Date | April 1, 2023 |
Submission Date | September 7, 2022 |
Published in Issue | Year 2023Volume: 9 Issue: 2 |
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