Microwave vacuum drying at low temperature sterilization applications 

 Microwave vacuum drying equipment to extend the shelf life of food, preserving the original flavor of food and nutrients, to retain the physiological activity of raw materials, and enhance the function of health food products, increase the added value of agricultural products, etc., have obvious advantages of microwave vacuum drying technology, First, the material can effectively maintain the shape, color, nutrients and aroma of the same, these features, for the production of health products is especially important; Second, it could dramatically reduce energy consumption. Freeze-drying the material in the approach adopted, the need to supplement heat of sublimation. In vacuum conditions, the water vaporization temperature is low, to achieve the low-temperature drying, processing of materials in good condition to maintain the original color, smell, taste and nutrition to prevent the material deterioration in the oxidation of active ingredients, products, rehydration good; microwave penetrate to the material inside the rotating system drive for the rotary movement of materials to make the material more evenly heated, dry more quickly, and its running costs are far lower than the freeze-drying and infrared drying, energy saving, environmental health; full use of microwave heating uniformity small temperature difference between inside and outside the material, both the use of the vacuum drying characteristics, but also solves the heat conduction vacuum difficult problem, greatly improving the drying efficiency and product quality. According to international statistics, the material heated by microwave equipment, and the speed and effectiveness of the conventional heating method is 4 to 20 times. The equipment is mainly used in high value-added, and has a heat-sensitive agricultural and sideline products, health products, food, herbs, fruits and vegetables, chemical raw materials such as dehydration; for the low concentration of chemical products, the removal of crystal water, the enzyme preparation drying, vacuum extraction of Chinese herbal medicine, for research institutions in the laboratory.