Refrigerated storage
Refrigerated storage rooms typically maintain temperatures between 0℃ and 5℃ for the purpose of preservation. Shenzhen's cold storage facilities are designed to preserve the original quality and freshness of agricultural products for extended periods, minimizing the death of the product itself and keeping cells in a dormant state during refrigeration to reduce nutrient loss and maintain a lively quality. This is commonly applied to fruits and vegetables. In today's fruit and vegetable industry, which is largely concentrated in cultivation, cold storage is inevitably used during transportation and sale to maintain the necessary nutritional content of the produce.
Micro-ATM Oxygen-Reduced Storage Refrigeration Warehouse
Modified Atmosphere Storage is a relatively advanced fresh produce preservation facility both domestically and internationally. It can adjust the temperature and humidity within the storage, as well as control the levels of oxygen and carbon dioxide in the air, keeping the produce in a dormant state and maintaining its original quality upon removal from storage.
1. Extend the storage life of fruits and vegetables, typically twice as long as in standard refrigerated warehouses, and sell upon reaching premium pricing.
2. Retains the freshness and crispness of fruits and vegetables. After shipment, the moisture, vitamin content, sugar content, acidity, firmness, color, and weight of the produce all meet storage requirements. Fruits are crispy, vegetables are tender and green, almost indistinguishable from freshly picked, and can provide the market with high-quality fruits and vegetables.
3. Inhibits the occurrence of fruit and vegetable diseases and pests, minimizing weight loss and pest damage to the maximum extent.
4. The display period for fruits and vegetables after picking can be extended to 21-28 days, whereas in a regular cold storage, the display period after picking for fruits and vegetables lasts only about 7 days before they spoil.
Modified Atmosphere Storage (MAS) refers to the preservation effect achieved through gas regulation methods. Gas regulation involves reducing the oxygen concentration in the air from 21% to 3%-5%. Essentially, a MAS warehouse is a high-temperature cold storage facility enhanced with a gas regulation system. It leverages the combined effects of temperature control and oxygen content to suppress the post-harvest respiratory state of fruits and vegetables. A storage space of 15-20 square meters can hold 5-7 tons. Investment: Refrigeration system: 19,500 RMB, Gas regulation system: 27,400 RMB.
(2) Methods to Prevent Cold Storage Odor
Food stored in cold storage must be inspected; milk storage cold rooms can only be used if they are free of spoilage. The cold storage rooms must not have any odors before receiving goods. If there are odors, they must be treated technically and the odors must be eliminated before use. Regular maintenance of the refrigeration equipment is essential, and stacking and unloading activities must be strictly prohibited to prevent damage to pipelines and leakage of refrigerants.
Note: The cold storage room must be free of odors before receiving goods. If there are odors, they must be treated technically and the odors must be eliminated before use. Ensure that the food entering the cold storage is inspected and not spoiled before storage. Regular maintenance of the refrigeration equipment is required, and unloading and stacking are strictly prohibited to avoid damaging pipelines and causing refrigerant leakage. During the cold processing of food, the temperature in the cold storage room must be maintained at a certain level, and food undergoing cold processing should not be transferred to another storage room or stored. If the temperature in the cold storage room cannot be lowered, the cause must be immediately identified and resolved before processing the food again. Food that can interact with each other must not be stored together in the cold storage.
