Microwave sterilization is an extension of the function of microwave heating technology. It is manifested as the change and reaction of the biological cell physiological activity of the organism after the interaction between the microwave and the organism and its basic unit-cells. Compared with the pasteurization method, microwave sterilization It has the following salient features:
1. Microwave sterilization equipment is a physical sterilization method. It can kill bacteria, molds, eggs, and viruses that are harmful to the human body without adding chemical preservatives. In the process of killing harmful microorganisms, it will not Food residual toxicity or contamination of radioactive substances, safe and harmless. It will not change the color, flavor and nutritional content of the food.
2. At the same sterilization temperature, the required sterilization time is short, and no preheating is required. For example, the killing time of E. coli is about 30s. Under the same sterilization conditions, the lethal temperature of the bacteria is relatively low, and the sterilization effect is extremely significant.
3. It can simultaneously sterilize the surface and the inside of the materials to be sterilized, which greatly shortens the sterilization cycle and ensures the consistency of sterilization.
4. Due to the simultaneity of the sterilization of each part of the material, the sterilization time is short, which can avoid the influence of long-term heating on the quality of the food, especially for the food that is not suitable for sterilization at a higher temperature or a longer heating time. For example: ginger powder with volatile spicy ingredients, fresh jellyfish with more water content, etc. For materials that need to be sterilized while maintaining the same quality requirements as color, fragrance and taste, the use of microwave sterilization can achieve results.
5. Microwave sterilization can be divided into sterilization after packaging and sterilization before packaging. The packaging container can not be made of metal, and it needs to use medium materials. Generally, plastic soft packaging or glass, engineering plastic container is suitable. In order to prevent the bag from expanding during the microwave sterilization process, the equipment can apply pressure in the working chamber and adopt a back pressure sterilization process to prevent the loss of the bag from expanding.
Shandong Arrow Intelligent Equipment Co., Ltd. is the largest manufacturer of puffed food machinery in China. The main products are the production, sales and export of extruder and its supporting equipment. We look forward to reaching cooperation with you!
