Indole production, methyl red, Voges-Proskauer, citrate, urease, oxidase, H₂S production, and gelatin liquefaction are tests historically performed on a

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In the early decades of the twentieth century, Enterobacteriaceae were identified using more than 50 biochemical tests in tubes; this method is still used today in reference and public health laboratories. Certain key tests such as indole, methyl red, Voges-Proskauer, and citrate, known by the acronym, IMViC, were routinely performed to group the most commonly isolated pathogens. Today, this type of conventional biochemical identification of enterics has become a historical footnote in most clinical/hospital laboratories.

Indole Production, Methyl Red, Voges-Proskauer, Citrate, Urease, Oxidase, H₂S Production