Shanghai Haozhuang Instrument Co., Ltd. has developed the LNB brand freeze dryer, which is energy-saving and environmentally friendly, leading the country. Professional manufacturing is more secure and affordable.
Freeze-drying (hereinafter referred to as freeze-drying) is to freeze the water-containing material into a solid state, and then to sublimate the water from the solid state into a gaseous state to remove the water and preserve the material , Drying, spray drying and vacuum drying, etc., but ordinary drying methods are usually carried out at temperatures above 0 ℃ or higher. The dried products generally have the problems of shrinking volume and hardening texture. Most of the volatile components will be lost. Some heat-sensitive substances are denatured and deactivated, and some substances even oxidize. Therefore, compared with the product before drying, there is a big difference in the characteristics of the product after drying.
Vacuum freeze drying technology, referred to as freeze drying, also known as sublimation drying. Widely used in medicine, biological products, chemical industry and food industry. For heat-sensitive substances such as antibiotics, vaccines, blood products, enzyme hormones and other biological tissues, freeze-drying technology is very suitable. The freeze-drying method is basically carried out below 0 ℃, that is, the product is frozen. Only when the residual moisture content of the product is reduced later, the product is allowed to rise to a temperature above 0 ℃, but generally does not exceed 40 ℃. Under vacuum, when the water vapor directly sublimates out, the drug remains in the ice shelf when it freezes, forming a sponge-like loose porous structure, so its volume is almost unchanged after drying. Before use again, as long as water for injection is added, it will immediately dissolve.
The main application of drug freeze-drying includes western medicine and traditional Chinese medicine. Western medicine freeze-drying has been developed in China, and many larger pharmaceutical factories have freeze-drying equipment.
In terms of Chinese medicine, it is currently limited to the lyophilization of a small amount of Chinese medicinal materials such as ginseng, velvet antler, 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 inspection drugs; blood, bacteria, arteries, bones , Long-term preservation of skin, cornea, nerve tissue and various organs.
Shanghai Haozhuang Instrument Co., Ltd. is a laboratory instrument manufacturer integrating R & D, production, sales and service. The company brings together many technical talents and advanced production equipment in electronics, refrigeration, design, manufacturing, etc., and focuses on high-tech fields such as experimental instruments and biomedical engineering. The company's research and development team has rich product experience and industry experience for our technology. The service provides a reliable guarantee. The company's main research and development and production: low temperature constant shaker temperature tank, snowflake ice machine, ultrasonic cleaning machine, ultrasonic cell crusher, sterile homogenizer, low temperature coolant circulation pump, low temperature thermostat circulator, constant temperature water tank / oil tank, high temperature circulation Device, snowflake ice machine, freeze dryer, chromatography experiment freezer, double glass reactor, water bath and other biochemical experiment equipment. It is a high-tech enterprise specialized in providing biochemical instruments, analytical instruments, glass instruments, and laboratory products.
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