Plate count agar (PCA) is a microbiological growth medium commonly used to assess or to monitor "total" or viable bacterial growth of a sample. PCA is not a selective medium.
The composition of plate count agar may vary, but typically it contains (w/v):
-
- 0.5% peptone
- 0.25% yeast extract
- 0.1% glucose
- 1.5% agar
- pH adjusted to neutral at 25 C.
Plate count broth does not contain agar.
Famous quotes containing the words plate and/or count:
“I sometimes have the sense that I live my life as a writer with my nose pressed against the wide, shiny plate glass window of the “mainstream” culture. The world seems full of straight, large-circulation, slick periodicals which wouldn’t think of reviewing my book and bookstores which will never order it.”
—Jan Clausen (b. 1943)
““The days have outnumbered
my fingers and toes.
What can I count with now?”
Saying this,
the naive girl cries.”
—Hla Stavhana (c. 50 A.D.)