BacterChrom™ COL_R Agar Plates

Ready-to-use chromogenic medium on 90mm plates for qualitative analysis of colistin-resistant gram-negative bacteria (COL-R).
Code: 01016
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™ COL_R Agar is a selective and differential chromogenic culture medium, intended for use in the qualitative direct detection of gastrointestinal colonization with colistin-resistant Gram-negative bacteria (COL-R) to aid in the prevention and control of COL-R in healthcare settings.Additionally, the medium can act as an early warning indicator in diagnostic testing, highlighting the possible presence of COL-R bacteria. It can also be used in food, animal feed, livestock, and environmental sample analyses.
The packaging with semi-permeable Cellophane film helps balance the humidity of the environment during storage.

PRINCIPLES

BacterChrom™ COL_R Agar utilizes chromogenic substrates and selective agents to differentiate colistin-resistant Gram-negative bacteria. The chromogenic components react with specific enzymatic activities, producing distinct colony appearances for easy presumptive identification. Selective agents suppress non-target organisms, ensuring specificity and enhancing the accuracy of detection.

Allow to warm to room temperature before inoculation, dry the plates in an incubator with the covers partially removed.
Direct streaking sample onto the plate
Incubate in aerobic conditions at 35 – 37°C for 18 – 24 hours

RESULTS

Microorganism	Typical colony apprearance
COL-R E. coli	dark pink to reddish
COL-R Coliforms	metallic blue
COL-R Pseudomonas	translucent, +/- natural pigmentation cream to green
COL-R Acinetobacter	cream, opaque
Other COL-R Gram (-)	colourless, natural pigmentation
COL-S Gram (-) bacteria	inhibited
Gram (+) bacteria, yeasts	inhibited

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

For 1 liter of medium

Agar	15,0 g
Peptones	20,0 g
Salt	5,0 g
Chromogenic and selective mix	0,8 g
Growth factors	1,7 g
Supplement (S)	2mL

pH of the ready-to-use medium at 25°C: 7,1 ± 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™ COL_R Agar	01016	10 plates/box or as per customer request.