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VUM DESCRIPTIC There are many different methods of identifying members of the Enterobacteriaceae. These can include different

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Answer #1

Blood agar

As blood agar contains general nutrients along with 5% sheep blood. So it is helpful in cultivating organisms and to check hemolytic abilit of organisms. Some bacteria produce exoenzymes that causes RBCs lysis and degrade hemoglobin. And this hemolysis olis of different types that can be detected by this blood agar.

positive reaction will be demonstrated by presence of clear zone around bacterial growth whereas there is no clear zone in negative reaction.

organism causes positive reaction is streptococcus

organism causing negative reaction is e. coli.

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