CHROMOGENIC STAPHYLOCOCCUS AUREUS AGAR BASE *

Chromogenic Staphylococcus aureus Agar Base is recommended for isolation and enumeration of coagulase positive Staphylococcus aureus from environment samples. Coagulase positive S. aureus gives brown black colonies with clear zone around the colony whereas S. epidermidis gives slightly brownish colonies. Other organisms give either colourless colonies or bluish coloured colonies due to the presence of chromogen. Listeria monocytogenes colonies are bluish in colour whereas Bacillus, E. coli and Micrococcus give colourless colonies.

for isolation and identi?cation of Staphylococci