According to reports, the use of micro-frozen technology for refrigeration of aquatic products is a major breakthrough in the preservation of aquatic products, and related technology projects have obtained national patents. The principle is based on the freezing and frost-resisting mechanism of organisms, by using micro-frozen liquids for micro-freezing, and then cold treatment and refrigeration, to ensure that the cell walls of fish and shrimp and other frozen products are well-preserved in the technical aspects, and there is no soluble protein and cell protoplasm during thawing. Extravasation, to achieve the effect and purpose of preservation. This technology can also be used for preservation of meat, fruits and other aspects. According to reports, the shrimps were chilled after being micro-frozen, placed in a cold storage at -18°C, and thawed after 10 months. The shrimps were intact in head and tail and had a certain degree of curvature. The shrimps were quite firm and blue-white. Translucent is not reddish, shell glossy, slightly moist, red after cooking, fragrant, shrimp body elastic, curved, with similar quality of live shrimp. Relevant persons believe that the large-scale acquisition of aquatic products such as white shrimp and tilapia by the micro-frozen technology will be processed for export, which will be of great technical and economic importance for the production of agricultural and sideline products in Hainan Province, especially for the development of the fish and shrimp aquaculture industry. . At present, Hainan's export of seafood is a major issue. In particular, seafood such as South American white prawn and Pleurodon praecox, which are rich in nutrients and delicious, are more likely to spoil and deteriorate at room temperature. However, frozen and quick-frozen foods do not last long and are easily deteriorated in cold storage. It is reported that the use of micro-frozen technology, shrimp can be stored at minus 18 degrees Celsius for up to 24 months, the preservation of the national fresh shrimp standards, and no chemical preservatives, is a natural health food.
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