In order to explore the best drying process and the drying process of the product moisture changes of dry hawthorn, hawthorn as raw material, hot air, the microwave drying alone and combined drying. Through the orthogonal test analysis of optimum conditions of combined drying of hawthorn, using 16 kinds of fruit and vegetable slices drying model to fit test data, determine the dynamic model for the combined drying of hawthorn.
The results show that the hot air microwave drying has advantages of hot air and microwave drying alone, the best conditions of drying: air temperature is 75 DEG C, the conversion rate of water content 50%, microwave power density of 2.7 W/g; hot air and microwave drying equipment of Hawthorn combined drying can be used in Approximation of diffusion Hii and model and others model are described. The research results can provide theoretical basis and guidance for the deep processing technology of hawthorn and industrial applications.
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