Fruit and vegetable fresh-keeping cold storage is actually a kind of controlled-atmosphere fresh-keeping cold storage. It is mainly used to store fruits and vegetables. Respiratory capacity is used to delay its metabolic process, so that it is in a state of near dormancy instead of cell death, so that the texture, color, taste, nutrition, etc. of the stored food can be kept basically unchanged for a long time, thereby achieving long-term freshness. Effect.
Store effect of controlled atmosphere cold storage:
（1） Inhibit respiration, reduce the consumption of organic substances, and maintain the excellent flavor and aroma of fruits and vegetables.
(2) Inhibit water evaporation and keep fruits and vegetables fresh.
(3) Inhibit the growth and reproduction of pathogenic bacteria, control the occurrence of certain physiological diseases, and reduce the fruit rot rate.
(4) Inhibit the activity of certain after-ripening enzymes, inhibit the production of ethylene, delay the post-ripening and aging process, maintain fruit firmness for a long time, and have a longer shelf life.
Controlled-atmosphere cold storage features：
(1) Wide range of applications: suitable for storage and preservation of various fruits, vegetables, flowers, seedlings, etc.
(2) The storage period is long and the economic benefit is high. For example, grapes are kept fresh for 7 months, apples are kept fresh for 6 months, and garlic moss is kept fresh and tender after 7 months,
with a total loss of less than 5%. Generally, the land price of grapes is only 1.5 yuan/kg, but the price after storage can reach 6 yuan/kg before and after the Spring Festival. One-time investment to build a
cold storage, the service life can reach 30 years, and the economic benefits are very significant. The investment in the year will bear fruit in the year.
(3) The operation technique is simple and the maintenance is convenient. The microcomputer of the refrigeration equipment controls the temperature, starts and stops automatically, without special
supervision, and the supporting technology is economical and practical.
Major equipment:
1. Nitrogen generator
2. Carbon dioxide remover
3. Ethylene remover
4. Humidification device.
5. Refrigeration system
6. Configuration of temperature sensor
Post time: Nov-30-2022