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The Shanghai Yetuo freeze-drying machine is suitable for materials that are sensitive to heat and prone to thermal deformation and denaturation. In the field of biology, there are drugs, vaccines, serum, plasma, antibodies, microorganisms, plant extracts, etc. Non biological fields: food, nanoparticles, colloids, plants, cultural relics, etc.
The core technology of Shanghai Yetuo freeze-drying machine is freeze-drying, also known as freeze-drying. Compared with conventional drying methods (drying in the sun, boiling, drying, spray drying, etc.), freeze-drying technology has the following advantages in actual use:
1、 Freeze drying is generally carried out at low temperatures, so many heat sensitive substances such as proteins and microorganisms will not undergo denaturation or lose their biological activity.
2、 When dried at low temperatures, the loss of some volatile components in the substance is minimal, making it suitable for drying some chemical products, drugs, and food.
3、 During the freeze-drying process of the freeze dryer, the growth of microorganisms and the action of enzymes cannot be carried out, so the original characteristics can be maintained.
4、 Due to drying in a frozen state, the volume remains almost unchanged, maintaining the original structure and preventing concentration.
5、 After drying, the substance is loose and porous, appearing sponge like. It dissolves quickly and completely after adding water, almost immediately restoring its original shape.
6、 Due to the drying process being carried out under vacuum with very little oxygen, some easily oxidizable substances are protected.
7、 Drying can remove more than 95-99% of moisture, allowing the dried product to be stored for a long time without deterioration.
8、 Due to the presence of water in the material in the form of ice crystals after pre freezing, inorganic salts dissolved in water are evenly distributed throughout the material.
9、 During sublimation, dissolved substances in water precipitate, avoiding the phenomenon of surface hardening caused by inorganic salts carried by the migration of internal moisture to the surface in general drying methods.
