Absrtact: In order to shorten drying time and save drying cost of Lycium barbarum, the microwave drying characteristics of Lycium barbarum and its effect on product quality after drying were studied by using microwave test device and selecting unused drying power and material laying thickness.
The results showed that the drying period of Lycium barbarum could be greatly shortened by microwave drying equipment during the slow drying stage. The drying time of microwave combined drying was about 65 hours shorter than that of natural drying, accounting for 72% of the drying period of natural drying.
Drying power and material layer thickness are important factors affecting microwave drying time. The larger the microwave power is, the smaller the material layer thickness is, the shorter the drying time is. Different microwave drying parameters have different effects on the quality of dried products. Microwave power is 1 kW. When the material layer thickness is 2 cm, the preservation rate and sensory quality of dried polysaccharides are the best.
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