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Pesquisa Agropecuária Brasileira

Print version ISSN 0100-204XOn-line version ISSN 1678-3921

Abstract

BRACKMANN, Auri; STEFFENS, Cristiano André  and  WACLAWOVSKY, Alessandro Jaquiel. Influence of harvest maturity and controlled atmosphere conditions on the quality of 'Braeburn' apple. Pesq. agropec. bras. [online]. 2002, vol.37, n.3, pp.295-301. ISSN 0100-204X.  http://dx.doi.org/10.1590/S0100-204X2002000300010.

This work was carried out to evaluate the effect of harvest maturity and controlled atmosphere on the quality and internal breakdown incidence in apples (Malus domestica) cv. Braeburn. The treatments consisted in the combination of harvest maturity (March 27, 1997 and April 9, 1997) with storage conditions (0.5°C with: 1 kPa O2/4 kPa CO2; 1 kPa O2/3 kPa CO2; 1 kPa O2/2 kPa CO2; 21 kPa O2/0 kPa CO2-cold storage and; -0.5°C with: 1 kPa O2/3 kPa CO2; 1 kPa O2/2 kPa CO2). After eight months of storage, there was no low temperature injury on fruits stored at -0.5ºC, and the cold storage fruits presented low quality for consumption. Under controlled atmosphere conditions of 1 kPa O2 combined with 2 and 3 kPa CO2 in -0.5ºC, the fruits presented lower rot, fruit cracking and internal breakdown incidence. Late harvested fruits (April 9, 1997) presented higher rot, mealy pulps, cork breakdown and craked fruits incidence. For flesh firmness, titratable acidity and TSS there was no significant difference among controlled atmosphere conditions after seven days in shelf life.

Keywords : Malus domestica; postharvest; physiological disorders; degradation.

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