Identification of species of the Genus listeria by fermentation of carbohydrates and enzymatic patterns.

Patterns of carbohydrates and determination of API ZYM and API oxidases can be considered a useful way to differentiate the strains of Listeria. With all this information it is possible to work out a schematic table that allows the identification of Listeria strains with a remarkable certainty. By numerical analysis four differentiated clusters have been demonstrated.