Freeze drying of biological productsMachine is a device that uses sublimation principle to remove moisture from various biological products through low-temperature freeze-drying and vacuum drying. Leech products are vacuum freeze-dried using a biopharmaceutical freeze-drying machine to obtain leech freeze-dried powder, which retains the nutritional components, microorganisms, and trace elements of the original leech and has good rehydration properties. It can be stored at room temperature for a long time. The application of biological product freeze-drying machine in the processing of leech freeze-dried powder has changed the traditional drying processing method used by enterprises.

Because traditional leech drying methods include drying, sun drying, microwave drying, and other processing treatments, all of which can cause problems such as material oxidation, loss of nutrients, and changes in shape and color. The biopharmaceutical freeze dryer crystallizes pre treated leech raw materials into a solid state at a low temperature of -50 ℃, and then dries them once under a vacuum of about 25PA to remove about 90% of the flowing water. Further analyze and dry the leech freeze-dried powder, with a vacuum control of around 20PA. After drying, obtain a leech freeze-dried powder with a water content of about 1%. The processing of leech freeze-dried powder by biological product freeze-drying machine requires three stages of work processing: pre freezing, one-time drying, and analytical drying. The temperature and time control of the entire sublimation drying process need to be guided by SFD freeze-drying machine engineers, and carried out under compliant freeze-drying technology to ensure the preservation of the original active substances and nutrients of leeches.

The freeze-dried powder of leeches processed by a biological product freeze-drying machine greatly maintains its original active substances and medicinal properties, and has been widely used in the leech processing industry. The SFD biopharmaceutical freeze-drying machine is suitable for freeze-drying and processing various biological agents, protein products, microbial agents, etc.