This is a medium for the selective isolation of Staphylococcus spp. and Streptococcus spp. primarily from clinical specimens. Based on Columbia Agar Base enriched with 7% Horse Blood the medium is made selective by the inclusion of Colistin and Nalidixic Acid to suppress the growth of the majority of Gram negative bacteria.
PP1080 – Columbia Agar Base with 7% Defibrinated Horse Blood & CNA Selective Supplement
|Shelf Life (days)|
|Storage Temp (°C)|
|Escherichia coli||NCTC 12241||Inhibited|
|Staphylococcus aureus||NCTC 12981||White colonies|
|Streptococcus pyogenes||NCTC 12969||Small colonies with β- haemolysis|