BioMed’s InTray™ MSA is a microbiology sample collection, transport, and culture device for the
growth, observation and selective isolation of staphylococci. This device isolates presumptive
staphylococci based on their ability to grown on agar media with 7.5% sodium chloride. A change of
the phenol red indicator (mannitol fermentation) aids in isolation and identifications of Staphylococcus.