1.46427
MacConkey Agar
plate diam. 55 mm, ready-to-use, contact plate for room temperature, aseptically filled, box of 20 plates, for enterobacteriaceae
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About This Item
material
polystyrene plate
Quality Level
Agency
EP
USP
sterility
aseptically filled
form
plate (ready-to-use)
feature
2D bar code
ready-to-use contact plate for room temperature
packaging
box of 20 plates
plate diam.
55 mm
pH
7.1 ( in H2O)
application(s)
food and beverages
microbiology
pharmaceutical
surface monitoring
compatibility
for use with Contact Plate
storage temp.
15-25°C
suitability
bacteria
enterobacteriaceae
General description
MacConkey agar is a selective medium for the isolation and cultivation of Enterobacteriaceae, especially E. coli in pharmaceutical, food, and other samples. Enterobacteriaceae can be differentiated even in the presence of Salmonella and Shigella. The pH ranges betweeen 6.9-7.3, which is optimum for the growth of bacteria. The addition of crystal violet and bile salts to MacConkey Agar inhibits the growth of gram-positive bacteria, whereas the growth of most gram-negative bacteria is supported. Bacteria using lactose and producing acids grow in pink to red-colored colonies, and bacteria not degrading lactose will grow colorless. Additionally, E. coli and other acid-forming bacteria will show a zone of precipitated bile salt around the colonies.
Application
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 2
Regulatory Information
Certificates of Analysis (COA)
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