Development of a device for biomaterial dehydration

Natural products with a number of specific properties are in increasing demand among the population. For groups of people who consistently implement a "healthy lifestyle", products that exclude the appearance of fat are increasingly used. At the same time, freeze-dried products are used for a variety of functional food rations. The purpose of this research is to develop a device for freeze-drying food products at atmospheric pressure and determine the parameters of the drying process. The duration of drying of frozen milk granules is 12 hours, and the frozen layer of mushroom granules is 24 hours. Drying in both cases lasted 30 minutes until the residual moisture content of the product is less than 5%. In the course of research, we have proposed the design of a special trolley for drying granulated products at atmospheric pressure, allowing the use of a normal, lateral air flow, which serves as a drying agent.