Changes of quality traits and phytochemical components of jujube fruit treated with preharvest GA3 and Parka during cold storage   
Yazarlar (6)
Orhan Karakaya
Erdal Ağlar
Burhan Öztürk
Sefa Gün
Umut Ateş
Dr. Öğr. Üyesi Osman Nuri ÖCALAN Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale
Makale Alt Türü Ulusal alan endekslerinde (TR Dizin, ULAKBİM) yayınlanan tam makale
Dergi Adı Turkish Journal of Food and Agriculture Sciences
Dergi ISSN 2687-3818
Dergi Tarandığı Indeksler TR DİZİN
Makale Dili İngilizce
Basım Tarihi 09-2020
Cilt No 2
Sayı 2
Sayfalar 30 / 37
DOI Numarası 10.14744/turkjfas.2020.007
Makale Linki https://dergipark.org.tr/en/download/article-file/1247473
Özet
The study aimed to assess the effects of pre-harvest gibberellic acid (GA3) and Parka applications on fruit quality and bioactive components of jujube (Ziziphus jujuba Mill. cv. ‘Li’) fruit during the storage. Fruit were kept at 0±0.5 °C and 90±5% RH for 45 days. Parka and GA3 applications delayed weight losses and respiration rate in the cold storage. While the effect of the Parka application on the decrease in fruit firmness values depending on the storage time was not significant, it can be said that GA3 application was effective in maintaining the fruit firmness in the cold storage. The increase in soluble solids content (SSC) during cold storage was less with GA3 application. The decrease in titratable acidity with ripening in the cold storage was similar in the Parka and control applications. It can be said that GA3 application was effective in maintaining the titratable acidity during storage and this effect increased with the combination of Parka+GA3. The highest vitamin C at the end of the storage was recorded in fruit treated with Parka. Total phenolics, total flavonoids and antioxidant activity decreased in all applications during the storage. GA3 and Parka applications retarded the losses in total phenolics, total flavonoids and antioxidant activity in the storage. As a result, it can be said that the pre-harvest GA3 and Parka applications give positive results in maintaining the quality properties of jujube fruit in the cold storage
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