Author(s): Safarov JE, Sultanova Sh A, Khonboev FZ
Convective drying of products is one of the most common ways of drying. The development of such equipment - a fairly promising direction. Technological features of the process allows to preserve the original properties of the product. In addition, the task of producing new qualities in the finished product. you need the appropriate equipment to achieve these goals. Further drying is considered from the standpoint of the most simple and economical process for the preservation of medicinal raw materials, which ensures the safety of almost all the biologically active substances. If the drying process is considered from the technological point of view, a process of removing the liquid, which is in the medicinal material. The freshly harvested raw drug usually contain 70-90% moisture, and dried in - about 10-15%. The drying process and performance drying units morphological features depend on raw material, its initial moisture content, the total surface of the material being dried, as well as humidity, temperature and coolant flow rate. This article describes methods of convective drying of medicinal plants - in drying removal of moisture from the surface due to the diffusion of moisture from the inside of the material to the surface. These two processes need to be in strict compliance, otherwise possible drying, warping the material surface and the deterioration of its quality. We consider different methods of drying of vegetable raw materials. Shows staged authors technology for each herb. As medicinal plant raw material mainly used in the pharmaceutical and medicine in dried form. It is only used in certain types of fresh state after collection.