Thermo Scientific™ Cetrimide Selective Agar/Mannitol Salt Agar

Description

Selectively and differentially isolate and identify Pseudomonas aeruginosa and staphylococci using Cetrimide Selective Agar/Mannitol Salt Agar bi-plate.

Selectively and differentially isolate and identify Pseudomonas aeruginosa and staphylococci using Thermo Scientific™ Remel™ Cetrimide Selective Agar/Mannitol Salt Agar bi-plate respectively. This phenol red mannitol agar contains 7.5% sodium chloride as a selective agent as reported by Koch in 1942¹. In 1955, Lowbury described the use of cetrimide in a selective medium for P. aeruginosa².

P. aeruginosa is a multi-drug resistant pathogen recognized for its ubiquity, its intrinsically advanced antibiotic resistance mechanisms, and its association with serious illnesses – hospital-acquired infections³.

Staphylococci are widespread in nature, although they are mainly found on the skin, skin glands and mucous membranes of mammals and birds. The coagulase-positive species, i.e. Staphylococcus aureus is well documented as a human opportunistic pathogen. The ability to clot plasma continues to be the most widely used and accepted criterion for the identification of pathogenic staphylococci associated with acute infections⁴.

• Ease of handling: Read more results from a single patient sample and produce more diagnostic details of pathogenic organisms while reducing storage capacity issues in the incubator with this convenient bi-plate.
• Easy to differentiate: Mannitol Salt Agar differentiates between coagulase-positive and coagulase-negative staphylococci whereas Cetrimide Selective Agar differentiates P. aeruginosa, which forms fluorescent green colonies, from the other nonfluorescent colonies.
• Selective: Sodium chloride in the concentration of 7.5% inhibits many bacteria other than staphylococci in Mannitol Salt Agar whereas cetrimide in the medium inhibits bacteria other than P. aeruginosa in Cetrimide Selective Agar.
• Ready to use: Convenience of a prepared media.
• Easy to read: Coagulase-positive staphylococci produce yellow colonies and a surrounding yellow medium while coagulase-negative staphylococci produce red colonies and no color change of the phenol red indicator in Mannitol Salt Agar. P. aeruginosa is characterized by production of pyocyanin, a blue-green, water-soluble, non-fluorescent phenazine pigment and no color development on negative test in Cetrimide Selective Agar.

Not all products are available for sale in all territories. Please inquire.

Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.

Specifications

• Description: Cetrimide Selective Agar//Mannitol Salt Agar
• Format: Biplate
• Product Type: Agar
• Quantity: 10/Pk.

Safety and Handling

SDS

Not intended for IVD use.