Application technology of medicinal freeze-drying machine in the processing of freeze-dried powder of traditional Chinese medicine decoctio
Medicinal freeze dryer is a vacuum freeze dryer equipment that freeze dryer technology is used in the drying and processing of traditional Chinese medicine. Its working principle is that the processed Chinese medicine is pre-frozen and crystallized in the freeze dryer, and then in a vacuum environment of about 1~30pa Directly sublimate and dry the water to obtain a freeze-dried product of traditional Chinese medicine with a water content of about 1%. The main feature is that it can preserve the original medicinal properties of traditional Chinese medicine, which is convenient for long-term storage and carrying at room temperature. It has strong rehydration property, is convenient to use, and is easy to absorb. The traditional Chinese medicine freeze-drying technology of the freeze dryer solves the problem of inconvenient storage, carrying and use of traditional Chinese medicine, bringing high efficiency and convenience.
After obtaining a traditional Chinese medicine formula, after dispensing and brewing to obtain a decoction, it enters a medicinal XY freeze dryer for low-temperature cooling and crystallization into a solid state, freezes at the crystallization temperature -50°C for about 3 to 5 hours, and then enters a vacuum drying process. In the drying stage, the primary drying temperature control range: -50~10°C, the vacuum control of the freeze dryer: 15PA±3, and the drying time: about 12~20 hours. After the first drying, the traditional Chinese medicine freeze dryer enters the analysis and drying stage, the temperature control range: 15~55℃, the vacuum control of the vacuum freeze dryer: 10PA±3, and the freeze drying time: about 10~15 hours. After analysis and drying, the freeze dryer automatically enters the heat preservation stage, and a pressure rise test is performed before the material is discharged to ensure that the freeze-drying effect is achieved. The freeze-dried material of traditional Chinese medicine with a water content of 1% is obtained, and then the freeze-dried powder of Chinese medicine decoction is obtained after low-temperature crushing.
In the whole vacuum freeze-drying process, water is physically removed under low temperature and vacuum environment, which can effectively ensure that the material does not change, oxidize, or produce chemical reactions to ensure the pharmacological properties of traditional Chinese medicine.
At present, the medicinal freeze-drying machine is widely used in pharmacies and pharmaceutical factories in the processing of freeze-dried powder of traditional Chinese medicine decoction. Cordyceps freeze-drying, velvet antler freeze-drying, etc. are also widely used in deer blood freeze-drying, hippocampus freeze-drying, sheep placenta freeze-drying and various traditional Chinese medicine formula decoction freeze-drying.
