Freeze-dried frozen drugs divided into western medicine and traditional Chinese medicine

The freeze drying oven is composed of a refrigeration system, a vacuum system, a heating system, and an electrical instrument control system. The main components are drying ovens, condensers, refrigeration units, vacuum pumps, heating/cooling devices, etc.
Freeze-drying (hereinafter referred to as lyophilization) is a method in which an aqueous substance is first frozen into a solid state, and then the water therein is sublimated from a solid state into a gaseous state to remove water and preserve the substance. The principle of drying is various, such as drying, boiling, drying, spray drying and vacuum drying, but ordinary drying methods are usually carried out at temperatures above 0 ° C or higher. The products obtained by drying generally have problems of shrinking size and hardening of the texture. Most of the volatile components are lost, some heat-sensitive substances are denatured and deactivated, and some substances are even oxidized. Therefore, the dried product has a large difference in properties compared with that before drying.
Vacuum freeze-drying technology, referred to as freeze-drying, also known as sublimation drying. Widely used in pharmaceuticals, biological products, chemical and food industries. Freeze-drying techniques are very suitable for heat sensitive substances such as antibiotics, vaccines, blood products, enzyme hormones and other biological tissues. The lyophilization process is basically carried out below 0 ° C, that is, in the state where the product is frozen, and only when the residual moisture content of the product is lowered in the later stage, the product is allowed to rise to a temperature above 0 ° C, but generally does not exceed 40 ° C. Under vacuum conditions, when the water vapor is directly sublimated, the drug remains in the frozen ice shelf, forming a sponge-like porous structure, so the volume after drying is almost constant. Before using it again, as soon as you add water for injection, it will dissolve immediately.
The main application of pharmaceutical freeze-drying includes two parts, western medicine and traditional Chinese medicine. Western medicine freeze-drying has been developed in China, and many larger pharmaceutical plants have freeze-drying equipment.
In terms of traditional Chinese medicine, it is currently limited to lyophilization of a small amount of Chinese herbal medicines such as ginseng, velvet, yam, and Cordyceps sinensis.
In the field of biotechnology products, freeze-drying technology is mainly used for the production of drugs such as serum, plasma, vaccines, enzymes, antibiotics, hormones; biochemical inspection drugs, immunology and bacteriology; drugs; blood, bacteria, arteries, bones Long-term preservation of skin, cornea, nerve tissue and various organs.
Shanghai Xinzhuang follows the principle of “survive by quality, develop by technology, benefit by management, and credibility by service”. We will do a good job in every set of equipment, every project, every link, strictly abide by the credibility and commitment. Excellent quality and service have won the trust of the majority of users. We win customers with quality, praise 100%, look forward to new and old customers to come to buy!

Http://