"TEKNIK" LYOPHILIZERS (FREEZE DRIER) JEQ-250:Freeze-drying by lyophilizers (also known as lyophilization or cryodesiccation) is a dehydration process typically used to preserve a perishable material or make the material more convenient for transport. Freeze-drying works by freezing the material and then reducing the surrounding pressure and adding enough heat to allow the frozen water in the material to sublime directly from the solid phase to gas.
APPLICATIONS:
Pharmaceutical and biotechnology
Pharmaceutical companies often use freeze-drying to increase the shelf life of products, such as vaccines and other injectables. By removing the water from the material and sealing the material in a vial, the material can be easily stored, shipped, and later reconstituted to its original form for injection.
Food industry
Freeze-drying is used to preserve food and make it very lightweight. The process has been popularized in the forms of freeze-dried ice cream, an example of astronaut food. It is also popular and convenient for hikers because the reduced weight allows them to carry more food and reconstitute it with available water. Instant coffee is sometimes freeze-dried, despite high costs of freeze-dryers. The coffee is often dried by vaporization in a hot air flow, or by projection on hot metallic plates. Freeze-dried fruit is used in some breakfast cereal. Culinary herbs are also freeze-dried, although air-dried herbs are far more common and less expensive. However, the freeze-drying process is used more commonly in the pharmaceutical industry.
Technological industry
In chemical synthesis, products are often lyophilized to make them more stable, or easier to dissolve in water for subsequent use.
In bioseparations, freeze-drying can be used also as a late-stage purification procedure, because it can effectively remove solvents. Furthermore, it is capable of concentrating substances with low molecular weights that are too small to be removed by a filtration membrane.
Freeze-drying is a relatively expensive process. The equipment is about three times as expensive as the equipment used for other separation processes, and the high energy demands lead to high energy costs. Furthermore, freeze-drying also has a long process time, because the addition of too much heat to the material can cause melting or structural deformations. Therefore, freeze-drying is often reserved for materials that are heat-sensitive, such as proteins, enzymes, microorganisms, and blood plasma. The low operating temperature of the process leads to minimal damage of these heat-sensitive products
Other Information
- Packaging Details:
THESE "TEKNIK" LYOPHILIZERS ARE HEAVY,COSTLY, DELIGATE AND THE RESEARCH INSTRUMENTS, HENCE IT IS SUGGESTED TO BRING IT IN PERSONAL VEHICLE NOT IN TRANSPORT OR CARGO, IF REQUIRED PERSONAL DELIVERY CAN BE ARRANGED FOR THE SAFE AND SOUND DELIVERIES AT THE REQUIRED DESTINATIONS.
