Controlled atmosphere maintains the quality of certain fresh produce in mixed cargo shipments

Abstract

AbstractShipping containers are used globally for the domestic distribution and export of several products. In this study, we compared the efficacy of controlled atmosphere (CA) containers to reefer containers based on the quality of 41 fresh fruits and vegetables exported from Japan to Singapore. We used instrumental analysis and sensory evaluation to compare the quality of fruits and vegetables transported in these two container types. Thirteen types of produce showed higher quality in the CA container than in the reefer container. Two types of fruits deteriorated in flavor due to abnormal maturation under CA conditions. Six types of produce showed higher quality in the reefer containers than in the CA containers. The CA containers were particularly effective in improving the quality of leafy vegetables, root vegetables, and fresh legumes; thus, CA containers are excellent for exporting these types of produce.Practical applicationsThe export of fresh fruits and vegetables by CA containers is expanding year after year, but their operation is difficult because the optimal storage environment for fruits and vegetables varies from item to item. This study showed the effectiveness of CA containers in improving the quality of leafy vegetables, root vegetables, and fresh legumes during their export from Japan to Singapore. These findings would contribute to the expansion of exports using CA containers in the future.