Volume 54 Number 4 Article 40
Year 2000 Month 10
Title: Maturity and Storage Quality of ´Jonagold` Apples Related to Starch Index
Authors: S.R. Drake and E.M. Kupferman
Abstract:
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% O2 and 3% CO2 , or 1% O2 and 1% CO2. 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 at
mosphere to maintain the quality of 'Jonagold' apples was 1% O2 & 1 % CO2.
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