Several new sterilization methods for QS certifica

Several new sterilization methods of food QS certification

in recent years, sterilization equipment has been widely used in the food industry. Here are several popular food sterilization equipment in the international market:

(I) high voltage electric field sterilization equipment

this technology uses the dielectric blocking principle of strong electric field pulse to inhibit microorganisms. Some manufacturers in France and the United States have used this new technology of strong electric field to kill cells in food processing. This technology can avoid protein denaturation and vitamin damage caused by heating. The working principle of the system is: when the food is sent into the pulse tube with two parallel carbon poles, the contact is connected, and the capacitor begins to charge; After charging, the contact turns to the other end, and the capacitor discharges through a pair of carbon electrodes, and within a few seconds. The biggest obstacle for carbon fiber lightweight composites to enter the Chinese automotive market is the lack of rapid mass production technology and professional utilization skills and knowledge. When the operating temperature is 45 ℃ ~ 50 ℃ and the field strength is 30kv/cm, the effect of killing microorganisms is particularly good

(II) induction electron sterilization equipment

the electric spectrum irradiation technology produced by the linear induction electron accelerator of hips/ppo alloy with electricity as energy can lead to changes in microbial cells, and then inactivate and kill harmful microorganisms. This new technological device accelerates electrons to hit heavy metal lead plates. The lead plate produces strong rays with broadband electronic energy spectrum, so it has high sterilization energy and is convenient to use. In addition, the new method of strong light pulse sterilization is to use continuous broadband spectrum short and strong pulses to inhibit microorganisms on the surface of food and packaging materials, transparent beverages, solid surfaces and gases

(III) microwave sterilization equipment

Germany bestorf company has recently developed a microwave mixing room system, which uses microwave to sterilize food, and the effect is very ideal. The system consists of micro generator with corresponding power supply equipment, waveguide connector and processing room. It can quickly pasteurize food in continuous flow with extremely small temperature difference in food. In the processing room, the microwave energy can be evenly distributed on the processed food, heated to the pasteurization temperature of 72 ℃ ~ 85 ℃, which is a market-oriented means, for 1 ~ 8 minutes, and then sent to the storage room, and the temperature drops below 15 ℃ before storage

(IV) X-ray if we measure this signal directly, line sterilization, filling and packaging machine

a sealed joint sterile food filling and packaging machine using X-ray sterilization, which was jointly developed by Toyo automatic machinery company and tengsen Industrial Company in Japan. This machine uses X-rays to pre sterilize food. Unlike other similar filling and packaging machines, the sterilization process is not to make bags first, and then send the bags one by one to the filling and packaging machine for sterilization in the bag. Instead, the bags are made of composite film as raw material and sterilized, which are directly sent to the filling and packaging machine for filling and packaging in the sealed state, so as to simplify the process of heating and sterilization after filling used by ordinary packaging machines, which is fast and can avoid damaging the flavor of food

(V) infrared sterilization packaging machine

the infrared aseptic packaging machine pioneered by mitz company in Japan is composed of a packaging machine and a channel infrared shrinking machine. The machine can choose heat shrinkable film of corresponding thickness and color according to the shape and size of the package, and sterilize in radiation at the same time. The sterilization procedure and packaging rate were increased by 6 ~ 8 times. (end)