Changes in temperature and relative humidity, and the freshness-keeping effects of a low-temperature keeping system for fruits and vegetables using refrigerant plates
2020
Genkawa, T. (University of Tsukuba, Tsukuba, Ibaraki (Japan). Faculty of Life and Environmental Sciences) | Garg, P.K. | Ahamed, T. | Noguchi, R.
The performance of a low-temperature keeping system for fruits and vegetables was investigated using a refrigerant plate, the melting point of which is configurable within the chilled range. Young leaves of Japanese mustard spinach and the fruits of strawberry were sealed in a film bag and stored in an insulating container with refrigerant plates for a few days, and the temperature, relative humidity (RH), and qualities before and after storage were measured. The results indicated that the interior of the insulating container was maintained at a low temperature and a high RH for a few days, and that the fluctuations in temperature and RH were smaller than those obtained by mechanical refrigeration with an on-off control and defrosting. Moreover, there was no difference in qualities before and after storage. From these results, it was shown that the low-temperature keeping system using the refrigerant plates is a powerful tool for filling gaps in the cold chain logistics of exporting Japanese fruits and vegetables.
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