Effects of different calcium oxide dipping concentrations in aroma profiles of pink lady apple cultivar during cold-storage
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Tarih
2021
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Objective: The aim of this research was to assess the profile of volatile compoundschanges during the cold storage in ‘Pink Lady’ apples.Material and Methods: Six-year-old Cripps Pink (Pink Lady) fruits of apple treesgrafted onto M9 rootstock were used as a plant material for this study. The trees werein a commercial orchard in Çanakkale-Turkey. Fruits were carefully picked up by handat the commercial harvesting time. The fruits were dipped into calcium oxide solutions(concentrations of 2 and 4%) during three minutes. Control fruits were exposed todistilled water. Fruits were stored at 0°C and 90% relative humidity for 6 months. Thearoma profiles of apples determined by GC/MS (Gas Chromatography/MassSpectrometry) analysis followed by liquid-liquid extraction. Stored fruits were analyzedfor their volatile contents at the 2nd, 4th and 6th months.Results: Fresh fruits at harvest period contained 15 volatile compounds in total.However, higher levels of aroma volatile compounds were detected in 6 months ofcold storage. According to the chromatography results, control fruits had 24 volatilecompounds, 2% CaO treated fruits had 25 volatiles and 4% CaO treated fruits had 27volatile compounds at the end of the 6 months of cold storage. Apples at the initialstage produced an abundance of hexyl acetate (4.56%), butyl acetate (3.83%), andhexyl hexanoate (1.68%), which confer typical apple aroma characteristics. Mostly,ester production exhibited a fairly broad peak, declining as fruit aged. Isobutyric acid,allyl ester (initial 0.55%) was lower at the beginning of the storage compare to the endof storage (control fruits 0.06%, 2%CaO 0.13%, 4% CaO 0.20%).Conclusion: CaO applications especially 4% concentration had deformation effect onepidermal layer cells on fruit surface. As a result, CaO applications had a significanteffect on aroma enhancement in Pink Lady apples during cold storage.
Açıklama
Anahtar Kelimeler
Kimya, Analitik, Bahçe Bitkileri, Spektroskopi, Gıda Bilimi ve Teknolojisi, Bitki Bilimleri
Kaynak
Ege Üniversitesi Ziraat Fakültesi Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
58
Sayı
3
