Maturity and Storage Quality of Jonagold Apples Related to Starch Index
DOI:
https://doi.org/10.71318/apom.2000.54.4.213Abstract
Quality of Jonagold apples that were harvested at two maturities as determined by starch index was evaluated over three seasons. Apple quality was evaluated after harvest and after regular atmosphere (RA) and controlled atmosphere (CA) storage at 2% O 2and 3% CO 2, or 1% O 2and 1% CO 2. At harvest, differences in firmness, soluble solids content, acids and both exterior and interior color was evident between apples harvested at starch index 2 and 4. Apples harvested at a starch index of 2 maintained good quality during 50 days of RA storage and 120 days of CA storage. Delay in the time to establish CA influenced both firmness and acid content of Jonagold apples. The best CA storage atmosphere to maintain the quality of Jonagold apples was 1% O 2& 1 % CO 2.
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