What type of organism is phenylethyl Alcohol Agar for ? how does it work ?
How does it effect gram negaitve ?
Gram-Positive Cocci
It just discourages growth
breaks down membrane permeability layer
What is Mannitol Salt agar for ? How does it work ?
why is it differential and selective ?
It provides mannitol for certain bacteria , but has salt to dehydrate most bacteria Phenol red changes the color to indicate fermentationis used for isolation and differentation
Staphylococcus aureus
What organisms is MacConkey Agar used for ?
Is it selective ,differential ,or both ?
What does it contain ?
it is used to isolate and differentiate members of the Enterobacteriaceae . since it can ferment lactose
both
crlb
What is the Eosin Metheylene Blue Agar ?
What does pls ?
Isolation of fecal coliforms
peptone , sucrose , lactose
What is Hektoen Enteric Agar for ?
How does it work ?
It is for Shigella and Salmonella species
Looks for ablity to lactose , sucrose , salciin. and hydrogen into sulfur gas