Enrichment media are specialized growth environments used in microbiology to enhance the growth of specific microorganisms. These media contain nutrients and conditions that support the proliferation of certain bacteria or fungi while inhibiting others. This selective growth is crucial for isolating and studying particular species in a mixed sample. Commonly used in laboratories, enrichment media can include components like peptones, yeast extract, and salts to provide essential nutrients. Examples of enrichment media include selenite broth for isolating Salmonella and blood agar for growing fastidious organisms. These media play a vital role in clinical diagnostics and research.