Microbial Media

A microbial culture medium is a mixture of substances that promotes and supports the growth and differentiation of microorganisms. Culture media contain nutrients, energy sources, growth-promoting factors, minerals, metals, buffer salts, and gelling agents (for solid media). Culture media are still the golden standard in pharmaceutical, food and beverage industry to enumerate and detect microorganisms. Microbial culture media can be prepared as a liquid, a solid, or as a semi-solid. Solid and semi-solid media contain a solidifying agent such as agar or gelatine.