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Alkali Scientific Mannitol Egg Yolk Polymixin Agar 20mL Plate, 10/Pk
Supplier: Alkali Scientific MEYP00
Mannitol Egg Yolk Polymyxin (MYP) Agar is a selective and differential medium commonly used for the isolation and enumeration of Bacillus cereus in food safety testing. Each plate contains approximately 20 mL of agar formulated according to ISO and FDA BAM standards. The medium incorporates polymyxin B to inhibit competing Gram negative bacteria, increasing selectivity for Bacillus species. Mannitol fermentation provides differential identification, as B. cereus typically does not ferment mannitol and therefore produces pink colonies on the phenol red indicator background. The inclusion of egg yolk emulsion allows detection of lecithinase activity, a characteristic enzyme produced by B. cereus. Lecithin breakdown forms opaque precipitation zones around colonies, aiding identification.
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