Studying the application of dielectric pretreatment before drying

Abstract

In this paper, we studied the characteristics of drying red beets that were pretreated using microwaves before convective drying. The results of shortening the drying period using microwave pre-treatment during drying are analyzed. Experimental data were also obtained and the rehydration process of the dried sample was compared.

Influence of microwave pretreatments on the duration of freeze-drying of onions and beets

“…The heat transfer efficiency is determined by the drying mode. In several works [2], instead of the conductive method, the method of thermoradiation energy transfer was used, which made it possible to speed up the process at all stages of drying thermoradiation energy. The specificity of this type of energy transfer is based on the thickness of the thermocouple current material and its ability to enter the sublimation zone.…”