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    Controlled and modified atmospheres influence chilling injury, fruit quality and antioxidative system of Japanese plums (Prunus salicina Lindell)

    Access Status
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    Authors
    Singh, S.
    Singh, Zora
    Date
    2012
    Type
    Journal Article
    
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    Citation
    Singh, Sukhvinder Pal and Singh, Zora. 2012. Controlled and modified atmospheres influence chilling injury, fruit quality and antioxidative system of Japanese plums (Prunus salicina Lindell). International Journal of Food Science and Technology. 48 (2): pp. 363-374.
    Source Title
    International Journal of Food Science and Technology
    DOI
    10.1111/j.1365-2621.2012.03196.x
    ISSN
    0950-5423
    URI
    http://hdl.handle.net/20.500.11937/23802
    Collection
    • Curtin Research Publications
    Abstract

    Our objective was to compare the effects of controlled atmosphere (CA) and modified atmosphere packaging (MAP) on fruit quality, chilling injury (CI) and pro- and antioxidative systems in ‘Blackamber’ Japanese plums. Matured fruit were stored for 5 and 8 weeks at 0–1 °C in normal air, CA-1 (1% O2 + 3% CO2), CA-2 (2.5% O2 + 3% CO2) and MAP (~10% O2 and 3.8% CO2). CA was more effective than MAP in retention of flesh firmness and titratable acidity during cold storage. Fruit stored in CA-1 showed reduced CI and membrane lipid peroxidation after 5 and 8 weeks of cold storage. Low O2 atmospheres appeared to limit the generation of reactive oxygen species (ROS) and their efficient scavenging through the concerted action of superoxide dismutase and peroxidase. The role of ascorbate–glutathione (AsA–GSH) cycle in the regulation of oxidative stress was also studied during and after storage in different atmospheres. In conclusion, optimum CA conditions delayed fruit ripening and CI through augmentation of antioxidative metabolism and suppression of oxidative processes.

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