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    Home > Active Ingredient News > Drugs Articles > Why microwave is used in the sterilizer

    Why microwave is used in the sterilizer

    • Last Update: 2018-09-30
    • Source: Internet
    • Author: User
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    Why does the medicinal material sterilizer use microwave? Medicinal materials can be used for pharmaceutical raw materials, especially for Chinese medicinal materials in China, i.e raw materials of Chinese medicine without processing or finished products Traditional Chinese medicine is a traditional Chinese medicine Chinese medicine culture has a long history and is broad and profound It not only contains the unique cultural phenomenon of simultaneous development of Chinese and Western medicine created by thousands of years of Chinese medicine civilization and integration of modern western medicine civilization, but also is an important part of Chinese culture Microwave sterilization of medicinal materials is the result of the joint action of thermal effect and biological effect of electromagnetic field The thermal effect of microwave on bacteria is to change protein, make bacteria lose nutrition, reproduction and living conditions and die The biological effect of microwave on bacteria is that the electric field changes the potential distribution of cell membrane cross-section, affects the concentration of electrons and ions around the cell membrane, thus changes the permeability of cell membrane Therefore, bacteria are malnourished, unable to metabolize normally, cell structure and function are disordered, growth and development are inhibited and die In addition, the RNA and DNA of DNA, which can make bacteria grow normally and propagate stably, are relaxed, broken and recombined by some hydrogen bonds, thus inducing genetic gene mutation, or chromosome aberration or even breakage Characteristics of microwave sterilization equipment for medicinal materials: 1 Short time, fast speed Conventional thermal sterilization is to transfer heat from the surface of food to the interior through heat conduction, convection or radiation To reach the sterilization temperature, it often takes a long time Microwave sterilization is a direct interaction between microwave and food, bacteria and other microorganisms The thermal effect and non thermal effect work together to achieve the goal of rapid temperature rise sterilization The processing time is greatly shortened The sterilization effect of various materials is generally in 3-5 minutes 2 Compared with conventional thermal sterilization, microwave sterilization can achieve the desired sterilization effect in a relatively low temperature and a relatively short time Generally, the sterilization temperature is 75-80 ℃, which can achieve the effect In addition, the microwave processing food can retain more nutrients and flavor such as color, fragrance, taste, shape, etc., with the expansion effect For example, 46% - 50% of vitamin C is retained in vegetables treated by conventional heat, 60% - 90% by microwave, 58% by conventional heating, and 84% by microwave heating 3 Energy saving conventional thermal sterilization often has heat loss in the environment and equipment, while microwave directly acts on food, so there is no additional heat loss In contrast, it can save 30% - 50% of electricity 4 Uniform and thorough conventional thermal sterilization starts from the surface of materials, but there is a temperature difference between the inside and outside through heat conduction to the inside In order to maintain food flavor and shorten processing time Often the internal temperature of food does not reach enough to affect the sterilization effect Because the microwave can penetrate, when the food is treated as a whole, the surface and the interior are affected simultaneously, so the sterilization is even and thorough 5 It is easy to control the microwave dry operation and sterilization treatment The equipment can be used immediately without the thermal inertia of conventional thermal sterilization The operation is flexible and convenient The microwave power is adjustable The transmission speed is continuously adjustable from zero It is easy to operate 6 Compared with conventional methods, microwave equipment does not need boiler, complex pipeline system, coal yard and transport vehicle, as long as it has basic conditions of water and electricity 7 Improve the working conditions, save the floor area of the equipment with low working environment and low noise, greatly improve the working conditions, the operation of the whole microwave equipment only needs 2-3 people.
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