Effect of 1-methylcyclopropene treatment combined with modified atmosphere packa-ging on the postharvest storage quality and antioxidant capacity of mini-cucumber
Effect of 1-methylcyclopropene treatment combined with modified atmosphere packa-ging on the postharvest storage quality and antioxidant capacity of mini-cucumber
In order to extend the storing period of mini-cucumber,the individual and combined effects of 1-methylcyclopropene(1-MCP)and modified atmosphere packaging(MAP)on the postharvest storage quality of mini-cucumber during storage at(10±1)℃ were investigated in this research.The results showed that 1-MCP,MAP and 1-MCP+MAP treatments could delay the decline of chlorophyll content,hardness and total soluble solid content,in comparison with the control group.Among the three treat-ments,1-MCP+MAP treatment maintained the highest antioxidant enzyme activities(catalase and ascor-bic acid peroxidase)and 1,1-Diphenyl-2-picrylhydrazyl(DPPH)free radical scavenging activity and hydroxyl radical scavenging activity,significantly suppressed the changes of malondialdehyde(MDA)content,weight loss and respiration rates.Therefore,the preservation effect of 1-MCP+MAP treatment on the quality of cucumber was significantly better than that of the treatment alone,and the low-tempera-ture storage period could be prolonged by 5-10 d.The results of the study provide a technical reference and theoretical basis for the application of 1-MCP combined with MAP treatment in the preservation of mini-cucumber.
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