what categories of culture media do microbiologists use
Classification of culture media used in Microbiology laboratory on the basis of consistency. 1  Solid medium. solid medium contains agar at a concentration of 1.5-2.0% or some other, mostly inert solidifying agent. 2  Semisolid media. They are prepared with agar at concentrations of 0.5% or less. 3  Liquid (Broth) medium.