Quality Management of Fresh Fruit and Vegetables at a Supermarket Chain in Japan

Abstract

Without the cooperation of the supermarket, it is very difficult to continuously measure the storage temperature within the display cases of fresh fruit and vegetables or the on-site temperature distribution of the supermarket. We conducted this research in cooperation with a major supermarket in the Okinawa Islands. The temperature and humidity during transportation from the central depot to some stores, and storage temperature of refrigerated display cases for fruits and vegetables were measured in order to investigate the quality management of fresh fruit and vegetables during daily delivery and sales operations in56stores in the Okinawa prefecture. Temperature and humidity were measured by recording thermometers every10seconds during delivery and in the refrigerated display cases. The surface temperature of the fruit was indirectly measured by an infrared thermometer. Delivery from the distribution center to the store was mainly done using a van- type truck without temperature control. Insulated roll box pallets and gel ices were used for the delivery of the fresh fruit and vegetables, so that they could be transported in conjunction with foods that required no refrigeration, hence reducing transportation costs. The cold storage temperature at the supermarket was 9℃ on average, so fruit and vegetables could be kept in the store for a few days and not in refrigerated display cases or cold storage. However, if kept at this temperature for an extended period, chilling injury symptoms will occur on tropical and subtropical fruits in the display cases or during removal from storage.