L. mono Confirmatory Agar Base 100G

L. mono Confirmatory Agar Base is recommended for the selective and differential isolation of Listeria monocytogenes from clinical and food specimens. Differentiation of L.monocytogenes from other Listeria species is based on phosphatidylinositol-specific phospholipase C (PIPLC) activity and fermentation of α-Methyl D-mannoside. Phospholipase C enzyme activity results in the formation of an opaque halo around the colonies. Listeria monocytogenes, Listeria ivanovii exhibit positive PIPLC activity, Listeria ivanovii appears as light purple colony while Listeria monocytogenes produce yellow colured colony.