With the acceleration of the pace of life, people are more inclined to buy convenience food. Improving fish processing technology, increasing processing volume and enriching product types are crucial to the fish market. As an important exhibition in the industry, Shanghai Food Expo provides a platform for the research progress and product display of fish processing technology, and promotes the sustainable development of the fish processing industry and aquaculture industry.

Overview of fish product processing

Fish is an important source of protein, its protein content is high and easy to digest and absorb, containing all essential amino acids. Fish food is popular because it is delicious and nutritious. China's fishing industry is vital to economic development, but fish processing technology is relatively backward, mainly staying in the primary processing stage, such as freezing, curing, etc., the proportion of deep processing is only 42.6%, far lower than the 75% of developed countries. The technology and equipment of processing enterprises are old, the production efficiency is low, and the processing of freshwater fish is difficult because of the number of bone spurs, resulting in fewer deep-processing products. In addition, improper disposal of by-products causes environmental pollution and waste of resources, which limits the sustainable development of fisheries and processing industries.

Research progress in processing technology of fish products

Fish processing technologies are designed to extend storage time, improve utilization, increase diversity, and provide nutrients while generating profits for manufacturers. Traditional technologies include preservation, drying, high temperature sterilization and low temperature preservation, but with the growing demand for healthy food, new technologies have become important.

2.1 Freezing preservation technology

Cryogenic preservation technology by inhibiting microbial activity to keep fresh, including ultra-cold preservation technology, cold sterilization preservation packaging technology and live preservation technology, in order to maintain the freshness and quality of fish.

2.2 Ultra-high pressure technology

Ultra-high pressure technology maintains food nutrition and flavor, simplifies processes, extends shelf life, and is preservative-free. It changes protein structure and prepares active peptides, and has been widely used in food processing in the world.

2.3 Microencapsulation technology

Microencapsulation technology seals trace substances and is widely used in the food industry, especially in the extraction of EPA and DHA from fish oil to reduce oxidation and maintain stability and function.

2.4 Ultrafine grinding technology

Ultrafine grinding technology pulverizes the material into fine particles, increases the interface activity, improves the taste and nutrient absorption. In fish products, it is used to produce fish powder to enhance the added value of fish bones.

2.5 Modern microwave technology

Microwave technology is fast, uniform, efficient, used in food sterilization, drying and so on. In the processing of aquatic products, improving efficiency and quality, reducing energy consumption, is the future research direction of aquatic products industry.

Conclusion

With the rapid development of economy and society and the continuous upgrading of consumption level, traditional processing technology can no longer meet the needs of consumers for safe, healthy, nutritious and delicious fish products. To strengthen the research of fish processing technology and promote the healthy and rapid development of fishery industry with technological innovation is a great event for the benefit of the country and the people. The core of fish processing technology is to extend the storage time of fish food, improve the comprehensive utilization of fish body, increase the diversity of products, and provide nutrients required for human health. With the research and application of freezing preservation technology, ultra-high pressure technology, microencapsulation technology, ultra-fine grinding technology and modern microwave technology in the field of deep processing of fish products, China's fishery and fish processing industry will enter a new period of development.

If you would like to learn more about the food industry, please visit the SIAL Shanghai website for more information.

Source: Aquatic Processing Technology Alliance

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