XLD media

1
XLD media
E. coli
Salmonella
Shigella
2
XLD Agar This medium includes a relatively large
amount of lysine which can be decarboxylated (an
anaerobic process), producing an alkaline
product. Thus, Salmonella (lysine
decarboxylation-positive) can be differentiated
from Citrobacter (lysine decarboxylation-negative)
on this medium. A net alkaline colony is more
likely to be an enteric pathogen on this medium
than on the other media mentioned here.
3
EMB Media
E.coli
4
Mannitol Salt
Does not ferment mannitol ferments mannitol
Both are salt tolerant
ferments mannitol Does
not ferment mannitol Both are salt tolerant
5
Blood Agar