1, maintain a low-temperature environment

Temperature affects the physical, biochemical and mutagenic reactions in fruit storage, is an important factor in determining the quality of fruit storage. Low temperature can inhibit fruit respiration and some other metabolic processes, and can reduce the kinetic energy of water molecules, so that the evaporation rate of liquid water is reduced, thereby slowing down the aging, to maintain the freshness of the fruit and full.

2, change the gas composition

The metabolism of plant cells is mainly oxidation and reduction reactions, in which the utilization rate of oxygen determines the rate of metabolism, thus affecting the quality of fruit storage. Changing the composition of gases in the surrounding environment, such as reducing oxygen content and increasing carbon dioxide, can slow down the metabolism.

3, maintain a high humidity environment

After harvesting the fruit to absorb water from the plant roots of the process is terminated, the loss of water in the fruit can be caused by structural, textural and surface changes, so reducing water loss plays a key role in maintaining the freshness and quality of the fruit.

4, high-pressure preservation

High-pressure preservation of the principle of action is mainly in the storage above the application of a small pressure from the outside to the inside, so that the storage of the external atmospheric pressure is higher than its internal vapor pressure, the formation of a sufficient from the outside to the inside of the positive pressure difference, the general pressure of 2,500 to 4,000 atmospheres. Such a positive pressure can prevent the fruit water and nutrients to the outside diffusion, slow down the rate of respiration and ripening speed, so can effectively extend the fruit storage period. p>Note:

Tropical, subtropical fruits should not be refrigerated

Mango, dragon fruit, pineapple, lychee, longan, papaya, rambutan and other tropical, subtropical fruits. However, these fruits should not be put into the refrigerator to save. Because once put into the refrigerator, within a few days its surface will appear black spots, because most of them are more afraid of cold.

If the skin of the fruit is sunken, and there are some dark brown spots, indicating that the fruit is frostbitten. Frostbitten fruits not only have their nutrients destroyed, but also spoil easily. In a few days, the color of the flesh will turn brown and begin to rot.

Baidu Encyclopedia - Fruit Preservation