Fruit fresh-keeping cold storage can extend the storage […]
Fruit fresh-keeping cold storage can extend the storage period of fruits, ensure the quality of fruits and vegetables, and can store off-season fruits and vegetables, which can meet the needs of customers. So, what issues should be paid attention to in the creation of fruit preservation cold storage?
Fruit cold storage can keep fruits or vegetables for a long time. The skill of fresh-keeping cold storage is to let the stored fruits and vegetables get the effect of low temperature preservation. The temperature of fruits and vegetables should generally be restricted to about 0 to 15 degrees. , Fresh-keeping and refrigeration can effectively reduce the incidence of pathogenic bacteria, and can also reduce the phenomenon of decay in the fruit. At the same time, it can also slow down the respiratory metabolism of the fruit, so that the appearance of pre-preservation and decay The storage time of vegetables and fruits has been greatly extended, which is why we need fruit cold storage to create.
The size of the cold storage should be designed according to the high amount of agricultural products to be stored throughout the year. This capacity is in addition to considering the volume that must be occupied by the storage products in the cold storage, but also the inter-row aisles, the space between the pile and the wall, the ceiling, and the empty space for packaging. After confirming the cold storage capacity, confirm the length and height of the cold storage.
When constructing fruit fresh-keeping cold storage, you should also consider setting up a cooling room. The cooling room is mainly for some food that needs to be frozen after pre-cooling. The processing cycle is generally limited to 12 to 24 hours. After the product is pre-cooled, the temperature is also restricted. About four degrees, this is also a precaution for the creation of fruit fresh-keeping cold storage, which can make the fruit better storage.
Special attention should be paid to the excellent drainage conditions around the cold storage, the low groundwater level, the barrier under the cold storage, and the persistence of excellent ventilation and dryness is very important for the cold storage.
Different varieties of fruits and vegetables have different ability to tolerate low temperatures. Unsuitable low temperature freezing will affect the normal physiological functions of the fruits, cause changes in flavor quality or the occurrence of physiological diseases, which is unfavorable for storage. In terms of fruit, the fruit that is generally grown in the south or in summer is suitable for higher storage temperature. For example, pineapple is suitable for storage at around +5°C. Citrus should be stored at 3°C to 6°C. Bananas cannot be ripened if they are below +12°C for too long. The fruits grown in the north are seasoned apples and pears in autumn and winter, which can generally be stored at a temperature of about 0°C. For example, Golden Delicious and Red Star apples should be stored at 0.5°C to 1.0°C, Cockscomb and Guoguang apples should be stored at -1°C to 0°C, and Canavalia and Green Beans should be stored at 1°C to 3°C. Therefore, when storing fruits and vegetables in high temperature refrigeration, different storage temperatures should be controlled according to different varieties.