Liquid nitrogen cryopreservation technology of seafood is a new kind of food cryotechnology. The standard temperature of liquid nitrogen is -195.8℃ which is the most environmental protection, most efficient and most economical cooling medium in food industry. When seafood contact with liquid nitrogen, the temperature difference will exceed 200℃ which can rapid freeze the seafood in 5 minutes. Rapid freezing can form the least ice particles of seafood, put an end to the loss of moisture, and inhibit the destruction of bacteria and other microorganisms to food, so the food hardly discoloration and rancidity and maintain the original color and flavor and nutrients of the seafood. Long-term freezing can ensure the best taste.
The value of aquatic products depends primarily on its freshness. However, the moisture of aquatic products is quite high, generally 70%-80%; there is little matrix protein in muscle protein, muscle tissue is fragile, autolysis is quick and easily hurt and affected by microbial infection, so it is easy to corrupt. Seafood storage shelf life is mainly influenced by storage temperature and temperature fluctuations. While the storage temperature of intelligent cryoseafood series can reach -190℃ stably which can effectively extend the shelf life of seafood storage. When the shelf life is extended, it will miss the peak season which can earn higher yields. This series is mainly used to store high-end seafood products with good quality effect and large storage capacity. Mainly used to store some expensive seafood such as croaker, tuna, salmon, cod, etc.
Key Features:
1. Quick refrigeration
2. Long-term freshness retain
3. No power, no noise
4. No maintenance
5. Large storage capacity
6. Low liquid nitrogen evaporation rate
7. Easy to operate
8. Refreshing appearance
Software presentation
Applications Scenarios
Applications Value
There is a big difference between cryoseafood series and traditional cryopreservation ways, not only reflects in the principles and ways of cryopreservation, but also reflects in the cost. The cost of cryoseafood series is less than traditional ways. The Comparison table is below:
By contrasting liquid nitrogen cryopreservation technology and traditional cryopreservation technology, we can calculate the average annual investment of liquid nitrogen cryopreservation is about 0.0217 million/tons; the average annual investment of cold room is about 0.0385 million/tons; the average annual investment of freezer/refrigerator is about 0.0385 million/tons. So the liquid nitrogen cryopreservation technology has the following advantages:
1. Quick Chill
2. Long Fresh-keeping Time
3. Low Operation and Maintenance Cost
4. High Return Rate on Investment
5. No Energy Consumption and Noise
6. Small Footprint
7. Energy Saving and Environmental Protection
8. Cost Efficient
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