Microwave sterilization is a mechanical technology that mainly used for the drying and sterilization of medicines, nutritional supplements, food products, agricultural products, beef jerky, instant noodles, fast food, rice noodles in powder, granules, flakes and other state, the roasting, puffing, sterilization, peeling of almonds, peanuts, red dates, walnuts, chestnut, and the anti-mildew, sterilization,fresh-preservation of pickles,pot-stewed fowl, all kinds of meat small package and so on.
The purpose of sterilization is to eliminate harmful substances, microbial pollution that food contaminated by external world in the process, such as bacterial pollution in water, two of bacteria pollution in the air,two cross-infection caused by employees hand, equipment, containers, tools, turnover boxes, packaging materials contaminated and so on.
Microwave sterilization is a new type of sterilization equipment developed in recent decades. The traditional sterilization methods include water sterilization, air bacteria sterilization, pasteurization, ultraviolet lamp irradiation sterilization, etc.
1.Water sterilization: UV disinfection irradiate microorganism by ultraviolet at 260nm, it can cause chemical reactions within its molecules to kill it. This technology not only can be used to sterilize a variety of food containers ,but also can be used for the sterilization of meat, soft drinks, beer manufacturing water, vegetables, fish, shellfish and their products, as well as the sterilization of the thaw water of cooling water, frozen fish.However, water sterilization can not be sterilized for vacuum-packed, canned food.
2.Bacterial killing in the air: Food dynamic sterilizer is independent air purification and disinfection device, there are cabinet type, wall hanging type, ceiling type and other forms. An air dynamic disinfector with 2000 air volume can be opened in the room for 60 minutes, which can meet the disinfection requirements.
The disinfector is non-toxic and harmless, and can be used continuously in human situations, effectively avoiding secondary contamination of food by bacteria in the air. But mechanical equipment covers a large area, which requires professional personnel to operate and consumes a large amount of labor.
3.Pasteurization:Pasteurization technology is mainly used for the sterilization of orange, apple juice food, since the pH value of juice food less than 4.5 , no microbial growth.Sterilization objects are yeasts, molds and lactic acid bacillus. In addition, pasteurization also used to sterilize jam, syrup, canned fruit, beer, pickled vegetables, canned pickles and so on.
For sealed acidic foods, pasteurization have reliable acid resistance.For those low-acid foods that are not resistant to high-humidity treatment, as long as it does not affect consumption habits, the pH value can be reduced to the range of acidic foods by adding acid or by means of microbial fermentation, so as to achieve the purpose of preservation of food quality and storage resistance through low-temperature sterilization.This method needs a long time and is not suitable for heat-sensitive food.
4.UV light irradiation sterilization: this way has a strong bactericidal effect, simple to install, easy to use, and be widely used in the food industry. Due to harmful ultraviolet light, it can only be used in case of static (no human), and provide opportunities for secondary contamination of food for the bacteria during the actual production.
There is a shortcoming of ultraviolet light, the effective irradiation distance is 1.5 meters,most of bacteria, viruses in the air only temporarily stunned (or less hidden in the external radiation from 0.6M)when it opened, not completely kill; when closed,the stunned bacteria, viruses will rebound after people, things moving, so that the number of airborne bacteria higher.
Through understanding of traditional sterilization techniques above,we know all of this have disadvantages, with the progress of social development, microwave sterilization equipment could cater to the development of the food category better.The thermal effects of Microwave on bacteria make the protein change,make the bacteria lose nutrition, reproduction and survival conditions and death.
So what are the advantages and characteristics of our microwave sterilization equipment?
(1) Energy savings: Conventional thermal sterilization often exists heat lossesin environment and equipment, while the microwave directly acts on the food, thus no additional heat loss. In comparison, generally saving 30-50% electric energy.
(2) Even and thorough:Conventional thermal sterilization starting from the material surface, and then transferred to the inside by heat conduction.There is difference in temperature. In order to maintain food flavor, reduce processing time, the food did not meet enough internal temperature,which affect the sterilization effect.
Microwave has penetrating effect, When processing to food whole, surface and interior are affected at the same time, so disinfection sterilization is even and thorough.
(3)Easy to control: microwave food sterilization equipment has some characteristics,such as out-of-the-box,no thermal inertia of conventional thermal sterilization, convenient operation, the microwave power from zero to the rated power is continuously adjustable, transmission speed can adjust continuously from zero, easy to control.
(4)Simple equipment, advanced technology: as compared to conventional sterilization, microwave sterilization device does not need a boiler, complex piping systems, coal yard and transportation vehicles, only water, electricity and other basic conditions enough.
(5) It is a mixed system composed of a microwave generator respective fine power, the wave guide connector and the processing chamber, the food shelf life after processed up to 6 months.
Microwave sterilization dryer machine with stainless steel plate, robust and sturdy, have a strong thermal insulation properties; adopting tunnel structure, configuration PLC system, hot and cold air system, an infrared thermometer,implementing pipeline work,all of this enhances the upstream and downstream connection of production process to a great extent , and increases the overall efficiency.
The leader microwave equipment company has decades of manufacturing experience, to solve the rationalization of sterilization methods, do not damage the nutritional value, to ensure that food dietary fiber can be retained to an extreme after sterilization.
Choosing our microwave sterilization equipment is a wise decision, because whether in the equipment or the entire component configuration, we choose international and domestic well-known brands of accessories, to ensure quality and safety from the point of view of improving safety, rapidity and environmental protection .