ATCC medium: 530 Leonian's agar
Peptone......................0.625 g
Maltose......................6.25 g
Malt extract.................6.25 g
KH2PO4 .......................1.25 g
MgSO4 . 7H2O .................0.625 g
Agar........................20.0 g
Distilled water..............1.0 L