Enrichment culture

This is generally done by introducing nutrients or environmental conditions that only allow the growth of an organism of interest.

Enrichment cultures are used to increase a small number of desired organisms to detectable levels.

[2] The microbiologist (and botanist) Martinus Beijerinck is credited with developing the first enrichment cultures.

[4] Media with a high salt concentration will select for halophiles.

Selenite broth is used to selectively isolate Salmonella species.