BacterChrom™ B. cereus Agar Plates

Ready-to-use chromogenic medium on 90mm plates for detection and enumeration of Bacillus cereus group.
Code: 01031
Packaging: 10 plates/box or as per customer requirements.
Storage Conditions: 2–8°C.
Transportation: Ambient temperature.
Shelf Life: 03 months from the date of manufacture.

INTENDED USE

BacterChrom^TM B. cereus is a selective and differential culture medium designed for the detection and enumeration of Bacillus cereus group bacteria in environmental and food samples. It is intended for use in food safety testing and environmental monitoring to identify contamination with toxin-producing Bacillus cereus.
The packaging with semi-permeable Cellophane film helps balance the humidity of the environment during storage.

PRINCIPLES

Bacillus cereus is a spore-forming bacterium commonly found in soil and various food products. It produces toxins that can cause two types of foodborne illnesses:
- Diarrheal illness: Associated with meat or vegetable-containing foods, occurring after long incubation periods (8 – 16 hours).
- Emetic illness: Associated with improperly stored cooked rice, occurring after short incubation periods (1 – 6 hours).
This medium is formulated with selective agents to inhibit the growth of non-target organisms and chromogenic substrates for the differentiation of Bacillus cereus. The bacterium’s ability to hydrolyze specific substrates results in characteristic colony coloration, enabling rapid identification

RESULTS

Microoragnism	Typical colony appearance
Bacillus of cereus group	blue, with white halo
Other Bacillus	blue, colourless or inhibited
Gram negative bacteria	inhibited
Yeast and moulds	inhibited

BacterLab ensures the quality of each product batch by testing with ATCC reference strains.

PERFORMANCE	RESULTS
Culture conditions: 18 – 24 hours, incubated at 35 – 37°C, inoculum ≤ 10³ – 10⁴CFU/mL
B. cereus ATCC 10876	Blue with white halo
E. coli ATCC 35218	Inhibited, no growth

For 1 liter of medium

pH of the ready-to-use medium at 25°C: 6,8 ± 0,2

*Note: This ingredient is for reference only our company will formulate the ingredient according to requests or tender specifications.

Product Name	Code	Packaging
BacterChrom™ B. cereus Agar	01031	10 plates/box or as per customer request.