Trypton (pancreatic digest of casein) 6.0 g.Yeast extract 2.0 g.Glucose 4.0 g.NH4CH3COO 3.0 g.MgSO4 .7H2O 0.3 g.K H2PO4 0.5 g.FeSO4 .7H2O 0.01 g.Agar 15.0 g.Distilled water 1000.0 ml.pH 6.5 ± 0.1 at 25°C