Inspissation is the process of thickening by dehydration. More specifically, it is the process used when heating high-protein containing media; for example to enable recovery of bacteria for testing.
A common example of inspissation is frying an egg; the loss of water from the protein causes the egg to thicken from a gelatinous fluid to a solid. Any stained bacteria, such as Mycobacteria, can then be isolated.
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