Processing principle of freeze dryer
Processing principle of freeze dryer
technology, referred to as lyophilization, water vapour sublimation in a vacuum environment, low temperature drying, so that the water-containing materials can be stored for a longer period of time. Lyophilization is a method of pre-freezing an aqueous material and then sublimating it under vacuum to obtain a dried article. The freeze-dried items have the same biological and chemical properties, and are easy to store for a long time. After adding water, they can be restored to the form before lyophilization, and can maintain their original biochemical characteristics. Therefore, freeze-drying technology is widely used in the chemical industry, biological products and other fields.
Freeze-drying is a good way to preserve tissues and tissues that are sensitive to biological properties. The freeze dryer is suitable for drying bacteria, viruses, plasma, serum, antibodies, vaccines, and pharmaceuticals, microorganisms, yeast, plant extracts for biological research, and the like. It includes the following two points:
1. It is used for drying and preserving products that are easy to dehydrate. After adding water, it can restore the characteristics of raw materials without affecting its biological activity.
2. Drying is achieved at very low temperature, the protein remains anhydrous, and other major chemical bonds remain unchanged. By freeze-drying, materials such as tissue, tissue extract, bacteria, vaccine, and plasma become dry. Thus, no enzymatic, bacterial or chemical changes occur.
The disadvantage of the conventional high-temperature dryer is that it causes the material to shrink and destroy the cells. The structure of the sample is not destroyed during the freeze-drying process because the solid component is supported by the firm ice on its seat. When the ice sublimates, he leaves pores in the dry remaining material. This preserves the biological and chemical structure of the product and the integrity of its activity.
If you have the needs of freeze dryers, freeze dryers, etc., you need to know the quotation, Please go to to find the or : Contact us, we will contact you in the first time.
Floor model manifold freeze dryers：
：
在线联系供应商
Other supplier products
 |
LGJ-18S Standard Type Experimental Freeze Dryer | This Technical parameters： freeze drying area：0.18㎡/0.27㎡ tray dia.：Φ240mm tray numbers：4pcs or 6pcs tray spacing：70mm/50mm co... |
 |
LGJ-12S Series Vacuum Freeze Dryer | When we say ?, we truly mean home. It provides the convenience, simplicity, and electrical power requirements of other major kitchen appliances... |
 |
LGJ-12S Multi Manifold Standard Type Experimental Freeze Dryer | Technical parameters： freeze drying area：0.12㎡ tray dia.：Φ200mm tray numbers：4pcs tray spacing：70mm cold trap temp.：≤-56℃，opt... |
 |
LGJ-10FD Standard Type Experimental Freeze Dryer | Freezing and drying process of are finished in the same place (patented product). It changes the cumbersome operation of the drying process in t... |
 |
Which foods can be lyophilized with a freeze dryer | Which foods can be lyophilized with a freeze dryer At present, thedryer is divided into an electric heating freeze dryer and a silicone oil heatin... |
Same products
 |
货柜监装 | 卖方: 821678 | 广东检验检测有限公司是中国领先的第三方质量控制服务提供商之一，一直为全球客户提供产品检验、工厂/供应商评估、项目质量管理、产品测试以及质量工程咨询。监装是产品装入集装箱时的装车过程控制。 |
 |
货柜监装 | 卖方: 821678 | 广东检验检测有限公司是中国领先的第三方质量控制服务提供商之一，一直为全球客户提供产品检验、工厂/供应商评估、项目质量管理、产品测试以及质量工程咨询。监装是产品装入集装箱时的装车过程控制。 |
 |
CLONED CARDS+ FRESH DUMPS+PIN, | 卖方: cardersdrives | Sell Fresh Dumps CCV+FULLZ GIFTCARDS Credit Cards CLONECARDS ALL COUNTRY LIVE 100%Dumps CVV Fresh... |
 |
AFEN欧式速溶热冷咖啡杯面自动售卖机投币式 | 卖方: 湖南艾丰自动售货机有限公司 | Model AF-60GC4 Name Cup noodle vending machine Capacity ... |
 |
AFEN 24 hour self service automatic pharmacy store medical locker vending machine | 卖方: 湖南艾丰自动售货机有限公司 | Model AF-ZK(22SP)+AF-BLH-19S Dimension H:1940mmW:397mmD:320mm Power AC100V-240... |
