Microwave sterilization of pastries is a new sterilization method. It makes use of the thermal and non-thermal effects of microwaves, so that the microorganisms in the food are affected by these two effects at the same time, thereby achieving the purpose of sterilization. Here are some key points about microwave sterilization of pastries:

1. Principle of microwave sterilization:

Thermal effect of microwave energy: Under the action of a certain intensity of microwave field, insects and bacteria in food will absorb microwave energy and heat up due to molecular polarization, thereby denaturing their proteins and losing their biological activity. This thermal effect mainly plays the role of rapid heating and sterilization.

Non-thermal effects of microwave energy: High-frequency electric fields can also change the membrane potential and polar molecular structure of microorganisms, mutate their proteins and physiologically active substances, and cause them to lose vitality or die. This non-thermal effect plays a special role in sterilization that conventional physical sterilization does not have.

2. Microwave sterilization characteristics:

Short time and fast speed: Compared with conventional thermal sterilization, microwave sterilization treatment time is greatly shortened, and the sterilization effect of various materials is generally 3-5 minutes.

Low-temperature sterilization maintains nutrients and traditional flavor: Microwave sterilization uses special thermal and non-thermal effects to better maintain the nutrients and traditional flavor of food.

Microwave sterilization device:

The microwave heating and sterilizing device mainly includes the part that generates microwaves (consisting of a microwave generator and a microwave conduit), the furnace body or furnace cavity part (made of materials that can reflect microwaves and can produce microwave resonance), and a microwave stirring or dispersion device in the furnace. , sealed door part (to prevent microwave leakage) and operation control part (including safety interlock device).

In general, microwave sterilization of pastries is an efficient and rapid sterilization method that can effectively kill microorganisms in a short time while maintaining the nutritional content and traditional flavor of pastries.

However, it should be noted that the operation of microwave sterilization equipment requires professionals to ensure the safety and sterilization effect of the equipment.