Description
Synonyms: MYP Agar, MEYP Agar
for determination of Bacillus cereus in Food sample in accordance to ISO 7932 and ISO 21871, pkg of (90 mm plate (20 or per box))
General description
ReadyPlate™ is ready to use media to provide the highest level of quality and testing confidence for improving accuracy and significantly reducing the risk of false results. ReadyPlate™ Mannitol Egg Yolk Polymyxin Agar is used for the confirmation and enumeration of colonies of Bacillus cereus.
Application
ReadyPlate™ Mannitol Egg Yolk Polymyxin Agar is used for the confirmation and enumeration of colonies of Bacillus cereus in food samples.
Analysis Note
The MYP agar differentiates B. cereus from other bacteria by its resistance to Polymyxin B, its inability to produce acids from mannitol, and the presence of lecithinase. Peptone and meat extract serve as carbon and nitrogen sources for B. cereus. Bacteria that ferment mannitol to produce acids produce yellow staining of the medium with phenol red as a pH indicator. The lecithin present in egg yolk is cleaved by the lecithinase-producing B. cereus, leading to the formation of an opalescent white precipitation zone surrounding the colonies. Since B. cereus is mannitol-negative, the agar around colonies remains unchanged or is discolored by light alkalization (pink colonies). E. coli, other Enterobacteriaceae, and P. aeruginosa are inhibited by Polymyxin B.
PROPERTIES
Agency
ISO 21871
ISO 7932
reg. compliance
FDA BAM
form
plate (ready-to-use)
feature
ready-to-use
manufacturer/tradename
ReadyPlate™
packaging
pkg of (90 mm plate (20 or per box))
pH
7.2 ( in H2O)
application(s)
environmental
food and beverages
microbiology
storage temp.
2-8°C
suitability
Bacillus cereus
Legal Information
READYPLATE is a trademark of Merck KGaA, Darmstadt, Germany
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