Freeze drying, also called lyophilization, is a dehydration process that freezes a material and then removes the ice by sublimation under vacuum, leaving a dried product that can often be rehydrated later with little loss of structure or activity. French physiologists Jacques-Arsene d'Arsonval and Georges Bordas built an early freeze-drying apparatus in 1906 at the College de France to preserve biological specimens and serum. The technique was substantially advanced during the Second World War, when American bacteriologist Earl W. Flosdorf helped develop practical industrial freeze-drying equipment to preserve blood plasma for military use, laying the groundwork for its later widespread industrial and pharmaceutical application.
Facts
SignificanceDeveloped as a commercial technique in World War II to make blood plasma and penicillin stable without refrigeration. 1 Connections
In Field
Source Freeze drying - Wikipedia
Sources
1. Freeze drying - Wikipedia
History, paragraph 3
developed as a commercial technique that enabled blood plasma and penicillin to be rendered chemically stable
In Field: Chemical Engineering, Introduction
Freeze drying, also known as lyophilization or cryodesiccation, is a low-temperature dehydration process that involves freezing the product and lowering pressure, thereby removing the ice by sublimation.
In Group: Chemical Separation and Purification Techniques, Lead section
Freeze drying, also known as lyophilization or cryodesiccation, is a low-temperature dehydration process that involves freezing the product and lowering pressure, thereby removing the ice by sublimation.
View the SourceReader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.