Microwave vacuum freeze-drying equipment is a high-tech product with excellent application performance, but its application scale in China's food industry is still not very large. For the future prospect of microwave vacuum freeze-drying equipment in China, Chen Jinchuan, director of Nanjing Yatai Microwave Energy Research Institute, believes that microwave vacuum freeze-drying equipment prolongs the shelf life of food, preserves the original flavor and nutrients of food, and retains the physiological activity of raw materials. It has positive significance in enhancing the functionality of health foods and increasing the added value of agricultural products, and thus has a broad use in the health food industry and agricultural product processing industry.
Microwave vacuum freeze-drying technology has the following advantages: First, it can effectively maintain the shape, color, nutrient composition and aroma of the material. These characteristics are especially important for the production of health care products; second, it can greatly save energy. When the material is treated by freeze-drying, it needs to be supplemented with sublimation heat.
There are not many companies developing vacuum freeze-drying equipment in China, and there are fewer companies producing microwave vacuum freeze-drying equipment, only a few. In fact, in the world, there are very few research institutions and enterprises that can successfully solve the "low-pressure gas discharge problem" in the production process of microwave vacuum freeze-drying equipment. Because the water content, structure, viscosity and other properties of food raw materials are different, and there are many varieties of raw materials, different raw materials have different requirements on microwave design parameters. Therefore, in the process of processing agricultural products, microwave equipment has a strong specialization. One sex, it is difficult to be universal. For different agricultural products, microwave equipment with different structures and properties must be used for processing.
Due to the numerous advantages of microwave vacuum freeze-drying equipment, its market prospects are very good, especially in the processing of health care products and high value-added agricultural products, can play a very important role.
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