Lyophilization | Freeze drying | Preservation of bacterial culture | Bio science

Other 2 methods for preservation of bacterial culture :-
https://youtu.be/rX4UnNZbpuE

Freeze drying, also known as lyophilisation or cryodesiccation, is a low temperature dehydration process that involves freezing the product, lowering pressure, then removing the ice by sublimation. This is in contrast to dehydration by most conventional methods that evaporate water using heat.

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