|
This study was carried out to investigate the cultivar differences of storage potential caused by postharvest calcium chloride (CaCl₂) infiltration methods (dipping, pressure, or vacuum) and CaCl₂ concentrations (o, 2, 4, or 6%) in apple fruits, `Tsugaru´ , `Jonathan´ , and `Fuji´ . In `Tsugaru´ apples, no difference was observed in flesh firmness between the treated fruits and the control ones. However, in `Jonathan´ and `Fuji´ apples, the flesh firmness observed was higher in pressure or vacuum infiltration except in dipping. In `Jonathan´ apples, the higher CaCl₂ concentration tended to cause higher flesh firmness, but not in `Fuji´ apples. Furthermore, in `Jonathan´ apples, the flesh firmness of vacuum infiltration plots w as kept higher than that of pressure infiltration plots. However, in `Fuji´ apples, pressure infiltration led to a somewhat higher flesh firmness than vacuum infiltration. The higher infiltration pressure resulted in the tendency of higher flesh firmness in `Fuji´ apple fruits, but no significant difference was observed in `Jonathan´ apple fruits. No difference was observed in the content of soluble solids or total acidity regardless of postharvest CaCl₂ infiltration methods or CaCl₂ concentration.
|