BacterChrom™ StrepB Agar Plates

Ready-to-use chromogenic medium on 90mm plates for isolating and differentiating Streptococcus group B (S. agalactiae).
Code: 01003
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™ StrepB is a selective chromogenic culture medium that is intended to aid in the qualitative determination of Group B Streptococcus (GBS) colonization in pregnant women. This medium supports the growth of hemolytic and nonhemolytic GBS strains.
BacterChrom™ StrepB is not intended to diagnose infection nor to guide nor monitor treatment for infections. Further identification, susceptibility testing and epidemiological typing is needed on suspect colonie
The packaging with semi-permeable Cellophane film helps balance the humidity of the environment during storage.

PRINCIPLES

The medium contains components that facilitate the differentiation of Group B Streptococcus (GBS) through distinctive color changes in the colonies, allowing easy identification of suspected colonies. These components support the growth of both hemolytic and non-hemolytic strains of GBS, ensuring a reliable and accurate detection process.

BacterChrom™ StrepB can be used with the following specimens: urine, rectal and vaginal specimens. Sampling and transport equipment must be used in accordance with the recommendations of their suppliers for the conservation of Group B Streptococcus.
Relevant samples can be processed either by direct inoculation onto plates or by pre-enrichment in an enrichment medium (as recommended by the CDC).
Bring the agar plates to room temperature. Dry the agar plates in an incubator by partially opening the agar plates
Streak sample onto plate.
Incubate in aerobic conditions at 35 – 37 °C for 18 – 24 hours

RESULTS

Microorganisms	Typical colony appearance
Streptococcus agalactiae (group B)	mauve
Enterococcus species	steel blue
Lactobacilli, Leuconostoc, Lactococci	light pink Scanty growth to inhibited
Other microorganism	blue, colourless or inhibited

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

Strains	Incubation Conditions	Culture results
C.albicans ATCC 10321	Incubate at 35 – 37°C for 24 – 48 hours	Good growth, light pink colonies
E.coli ATCC 35218	Incubate at 35 – 37°C for 24 – 48 hours	Inhibites

For 1 liter of medium

pH of the ready-to-use medium at 25⁰C: 7,3 ± 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™ StrepB Agar	01002	10 plates/box or as per customer request.