Effect of Preharvest Calcium Chloride Treatment on Some Quality Characteristics and Bioactive Compounds of Sweet Cherry Cultivars
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Date
2022
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Publisher
Ankara Üniversitesi
Abstract
The effects of preharvest calcium chloride (CaCl2) treatment on some
quality characteristics and bioactive compounds of sweet cherry fruit
(Prunus avium L. cvs. 0900 Ziraat, Sweetheart and Merton Late) were
investigated. The CaCl2 (1%) solution was sprayed to the cherry trees at
21 and 35 days after full bloom stage. The trees served as control were
treated with distilled water at the same days. CaCl2 treatment
remarkably suppressed the respiration rate and increased titratable
acidity and fruit firmness of cherries. Treated fruit had more attractive
skin colour with higher h° and L* values compared to control. The
individual soluble sugars and total sugar contents of CaCl2 treated
cherries were lower than those of control fruit. The accumulation of
ascorbic acid, stem chlorophyll, total phenolics and anthocyanin
contents of fruit were delayed by CaCl2 treatment in all varieties. The
antioxidant activities of all treated varieties were lower than those of
control fruit. Based on these results, it can be set forth that preharvest
CaCl2 treatment suppressed ripening processes including respiration rate
and maintained firmness and titratable acidity of cherries by maintaining
cell integrity in all varieties during the fruit development period
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Keywords
Antioxidant, activit, Ascorbic acid, Firmness, Fruit sugars