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Detection of Bacillus Cereus group: CHROMagar™ B. cereus medium !


CHROMagar developed a new product for the detection and enumeration of Bacillus cereus group in food and environmental samples

Short Background
Bacillus cereus food poisoning is often associated with starchy foods, such as rice and pasta that have been uncorrectly cooled after cooking. if stored at abusive temperatures (approximately 59 to 104°F or 15 to 40°C) for an extended time, it will outgrow and produce a toxin that is heat stable and will not be inactivated.Bacillus cereus prefers to grow at temperatures between 30°C and 37°C, although it can grow at temperatures up to 55°C and in some cases down to 5°C. 

Detection Methods
The classical MYP agar relies on the inability of B. cereus to utilise the mannitol, which renders the plate reading difficult in the presence of abundant flora.

CHROMagar B.cereus, thanks to the chromogenic technology, overcomes this difficulty.

More information on CHROMagar B. cereus?
Visit the dedicated webpage for this product (click here) and contact your local distributor for more information and pricing.
The Ordering Product Reference is BC732 (Pack with powder quantity sufficient for 5000ml of media)


CHROMagar B.cereus

Typical colonies Appearance

Bacillus of cereus group 
→ blue, with white halo 
Other Bacillus 
 → blue, colourless, or inhibited 
Gram negative bacteria 
 → inhibited 
Yeast and moulds 
 → inhibited