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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Storability of “Jonagold” Apple Fruit under Extreme Controlled Atmosphere Conditions
Author(s)
Adriano Arriel Saquet
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DOI:10.17265/2161-6264/2016.04.006
Affiliation(s)
Federal Institute of Science and Education Farroupilha—Campus Panambi, Rua Erechim 860, 98280-000 Panambi, RS, Brazil
ABSTRACT
In two consecutive seasons, the storage capacity
of “Jonagold” apple fruit was investigated under regular
air (RA) and various
controlled atmosphere (CA) conditions during six
months at 0 ± 0.3 °C. The different CA treatment combinations were: (1) 0.5 kPa O2 + 0.5 kPa CO2, (2) 2.0 kPa O2 + 1.0 kPa CO2, (3) 1.0 kPa O2 + 3.0 kPa CO2 and (4) 0.5 kPa O2 + 6.0 kPa CO2. Ethylene production
and respiration rate were evaluated at each two months storage intervals during 7 d shelf life at 20 °C. Fruit quality traits were analyzed immediately at the end of storage period and after 7 d
shelf life at 20 °C. Under CA treatment, the lower the O2 and/or the higher the CO2 partial pressure, the stronger was the
inhibition of the ethylene production and respiration rate of apple fruit. The
0.5 kPa O2 + 6.0 kPa CO2 CA condition induced
the strongest suppression in ethylene production and consequently lower CO2 release by apple fruit. At the end of storage period, “Jonagold” apple fruit was very tolerant to all CA conditions, and any kind of
internal storage disorders was observed. The
storage of “Jonagold” apple at 1.0 kPa O2 +
3.0 kPa CO2 and 0.5 kPa O2 + 6.0 kPa CO2 proportionated higher
flesh firmness (FF), greener skin color (SC) and higher titratable acidity (TA) either immediately
after storage or after 7 d shelf life at 20 °C. Total
soluble solids were not significantly affected by CA storage conditions.
KEYWORDS
Carbon dioxide, “Jonagold” apple, controlled atmosphere conditions, fruit quality, ultra-low oxygen.
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