The origin of freeze-drying machines originated in the 1920s vacuum freeze-drying technology after decades of ups and downs, and made great progress in the 20 years after Zui. In the 21st century, vacuum freeze-drying technology has become more and more popular with people due to the advantages that other drying methods cannot match. In addition to its wide application in the fields of medicine, biological products, food, blood products and active substances, its application scale and field Still expanding. To this end, vacuum freeze drying is bound to become an important application technology in the 21st century.
Freeze-drying process The freeze-drying process plays a key role in the manufacture of certain biological products and pharmaceuticals. For example, the measles vaccine and BCG vaccine are only valid for 3 months in the case of cold preservation, and the BCG vaccine safety test takes 2 months to complete. The lyophilization process keeps the live bacteria count of BCG in a qualified level after 4 to 5 years of storage. At present, the lyophilization process biopharmaceutical is mainly used in the production of biological, biochemical products, traditional Chinese medicine injection products and heat-labile antibiotic products.
Freeze dryer origin and freeze-drying process
2023 03/02