What are the benefits of domestic freeze dryers
Domestic freeze dryer is composed of refrigeration system, vacuum system, heating system, electrical instrument control system. So what are the benefits of domestic freeze dryers? Let's take a look:
I. Freeze-drying is carried out at low temperatures and is therefore particularly suitable for many heat-sensitive substances. Such as proteins, microorganisms, etc. will not denature or lose biological vitality. Therefore, it is widely used in medicine.
2. The volume is almost unchanged because it is dried in a frozen state, and the original structure is not condensed.
3. After drying, the material is loose and porous and appears sponge-like. After adding water, it dissolves quickly and completely almost immediately restores its original properties.
24. Because the drying is carried out under vacuum with very little oxygen, some easily oxidizable substances are protected.
5. When drying at low temperature, some volatile components in the material have little loss, which is suitable for drying some chemical products, drugs and food.
26. During the freeze-drying process, the growth of microorganisms and the role of enzymes cannot be performed, so the original sexual performance can be maintained.
VII. Drying can remove more than 95-99% of water so that the dried product can be stored for a long time without deterioration.
Application of domestic freeze dryer
Freeze-drying is a method of freezing the water-containing materials in advance and then sublimating them in a vacuum to obtain dry items. The original biological and chemical properties of the freeze-dried articles are basically unchanged, and it is easy to be stored for a long time. After adding water, it can return to the form before lyophilization and maintain its original biochemical properties. Therefore, freeze-drying technology has been widely used in chemical industry, biological products and other fields.
之前 Before using a lyophilizer to freeze-dry, place the items to be dried in a low-temperature refrigerator or liquid nitrogen, and freeze the items completely before freezing and drying.
The main body of the lyophilizer and the vacuum pump are connected by a vacuum tube, and the connection uses an international standard clamp. The clamp contains a sealing rubber ring. Before connecting, apply a proper amount of vacuum grease to the rubber ring, and then clamp it with the clamp.
There is a power socket for the vacuum pump on the right side of the host, and the power cord of the vacuum pump is connected well.
Check the vacuum pump to make sure that the vacuum pump oil has been filled. Do not run without oil. The oil level must not be lower than the center line of the oil mirror. Before the first use, please read the instruction manual of the vacuum pump in detail.
The "O" sealing rubber ring above the cold trap of the host should be kept clean. For the first use, it can be coated with a thin layer of vacuum grease. The plexiglass cover is placed on the rubber ring and gently rotated a few times to facilitate sealing. .
Freeze dryer has a wide range of applications in the pharmaceutical, biological, chemical and food industries. For heat-sensitive substances such as antibiotics, vaccines, blood products, enzyme hormones and other biological tissues, freeze-drying technology is very suitable.
If you have the needs of freeze dryers, freeze dryers, etc., you need to know the quotation, Please go to **** to find the phone + 86-10-58895379 or email: info @ bjsyhx.com.cn Contact us, we will contact you in the first time.
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