Summary :
[Objective] The drying characteristics of fungus under different microwave powers were studied.
[Objective] The drying characteristics of fungus under different microwave powers were studied.
[Method] The effect of microwave power on the microwave drying characteristics of fungus was analyzed from the relationship of water content and drying rate, and the water loss law of microwave drying process in fungus was obtained.
[Results] The experiment showed that the higher the microwave power, the faster the drying speed of the fungus; under the same microwave power, the initial drying speed was slower; the medium-term accelerated drying, and the later stage appeared constant speed or slowdown.
The higher the microwave power, the higher the temperature of the dried material, and the faster the temperature rises during the same drying time; when it reaches about 70 °C, the protective film on the surface of the fungus is destroyed, and the protection of moisture in the fungus is lost, and the temperature rises again. trend. According to the analysis, the microwave drying speed is affected by the internal energy conversion process of the drying field and also depends on the internal structure of the material.
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