Abstract
This study investigated the dynamic changes in the anaerobic metabolism end products (ethanol, acetaldehyde and ethyl acetate) of different apple cultivars during 84-days of regular air (RA) and controlled atmosphere (CA) storage after 0-, 3-, 7- and 14-days of anoxia. Increasing the length of exposure to anoxia increased the anaerobic metabolites concentrations (AMC) in all cultivars. Fruit could recover from anoxia, and the AMC dissipated after 84-days of storage under both storage systems when the duration of anoxia was <7-days. The rate of metabolite dissipation following 14-days of anoxia differed among cultivars and storage systems. The reduction in AMC was faster under CA than RA-storage for ‘Golden Delicious’ and ‘Jonagold’ fruit, while the opposite trend was observed for ‘Kanzi’. These results indicate that storage under CA post anoxia maintains better fruit quality during 84-days of storage than RA and effectively reduces the AMC.
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