Conditions for Storage of Persimmons in Controlled Atmosphere Cold Storage

Persimmons are generally picked from the end of September to early October. For persimmons that need to be stored in cold storage, fruits with mature fruits, crisp and hard pulp, and light yellow fruit skins are generally selected. The picked persimmon fruits should retain a short fruit stalk and calyx when entering the persimmon preservation cold storage, so that the fruits are not damaged. Select and remove fruits with insect pests and cracks; then pack and store them.
The storage temperature of persimmon preservation cold storage is -1 - 0°C, and the relative humidity is 85-90%.
When persimmons enter the cold storage preservation cold storage, they need to be precooled. Let the fruit temperature drop to 5°C and then slowly drop to 0°C. The storage time can be about 3 months. After the persimmon fruits are taken out of the cold storage, if the temperature rises, they must be sold in time. Otherwise, the persimmon fruits will quickly become soft and thirsty.
However, persimmon fruits have a high tolerance to CO2 and are more suitable for storage in controlled atmosphere cold storage. The more suitable gas composition for persimmon storage in a controlled atmosphere cold storage is a ratio of O2 2 - 5% and CO2 3 - 8%.
If it is a soft persimmon, it can also be stored at a low temperature below 0°C in a controlled atmosphere preservation cold storage.

It can also be quickly frozen in a quick-freezing cold storage at -20°C for 24 to 48 hours. After the central pulp of the persimmon is fully frozen, it can be stored in a -10°C frozen cold storage.

It can be stored for up to one year. Storing persimmons in a frozen cold storage can maximize the nutritional flavor and original quality of persimmons. It is very suitable for consumers who prefer soft persimmons.

Controlled atmosphere cold storage, also known as controlled atmosphere storage, is currently the most advanced fruit and vegetable preservation and storage method.

Mainly, gas composition adjustment is added to the ordinary preservation cold storage. By controlling conditions such as the concentration of O2, CO2 and ethylene in the storage environment, the respiration of fruits and vegetables themselves is inhibited, the metabolism process of fruit and vegetable products is delayed, and the freshness and original quality of fruits and vegetables are better maintained, and the storage time and preservation time of fruits and vegetables in the cold storage are extended.