Microwave drying characteristics and drying model of sweet potato chips

1. Abstract: The characteristics of microwave drying equipment of potato chips were studied. The microwave drying test factors of potato chips were determined. The single factor test was carried out to analyze the loading, microwave power and slice thickness from the relationship between water content, water loss rate and power consumption. The effect of microwave drying characteristics of the potato chips on the microwave drying process of the potato chips was obtained. The mathematical model of microwave drying of potato chips was determined. The DPS software was used to fit the experimental data, and the fitting equation which accorded with the microwave drying law of the potato chips was obtained. The statistical test showed that the fitting effect was very good.

   

   microwave drying equipment 

   Key words: sweet potato microwave drying; characteristics; model

   Sweet potato is one of the traditionally cultivated food crops. It is rich in nutrients and enjoys the reputation of “nutrition and health food”. China’s sweet potato has the highest annual planting area and total output, ranking first in the world. However, due to its high water content, perishable and dehydrated sweet potato, it has become a short-lived and difficult-to-preserve agricultural product.

   sweet potato microwave drying