Apple fruit recovery from anoxia under controlled atmosphere storage

Food Chem. 2022 Mar 1:371:131152. doi: 10.1016/j.foodchem.2021.131152. Epub 2021 Sep 16.

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.

Keywords: Anaerobic metabolism; Anoxia; Apple; Controlled atmosphere storage; Ethanol; Fruit; Quality.

MeSH terms

  • Anaerobiosis
  • Atmosphere
  • Fruit
  • Hypoxia
  • Malus*