Microbiology of Foods
Suspected colonies of Staphylococcus aureus when grown on Baird-Parker medium shall show

protease activity
none of these
catalase activity
coagulase activity

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Microbiology of Foods
Examination of the presence / absence of organisms refers to

incubation of a food suspension in an enrichment medium followed by inoculation on to a non-selective medium.
incubation of a food suspension in an enrichment medium
incubation of a food suspension in an enrichment medium followed by inoculation on to a suitable selective medium.
None of these

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