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You are here:Home » Culture Media » Media-Microbiological » Cetrimide Agar, Non-USP (Pseudosel AgarŪ) (Powder)

Cetrimide Agar, Non-USP (Pseudosel AgarŪ) (Powder)

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Specifications

Selective isolation of Pseudomonas aeruginosa and other gram-negative, non-fermentative bacteria.
Catalog #C3100
Centrimide Agar is based on Tech Agar, which was developed by King, Ward and Raney. Centrimide is prepared according to this formula with the addition of Centrimide (cetyltrimethylammonium bromide). Cetrimide is a quaternary ammonium, cationic detergent with limited disinfectant action. It causes nitrogen and phosphorus to be released from the bacterial ceII. This germicidal activity is effective on most microorganisms except Pseudomonas aeruginosa. Centrimide Agar Base is supplemented with 1% Glycerol as a source of carbon.
AppearanceBeige, homogeneous, free flowing powder.
SolubilityLight to medium beige, slightly turbid.
pH (25°C)7.2±0.2
Storage and StabilityStore powdered media at RT. Opened bottles should be capped tightly and kept in a dark, low humidity environment. Prepared media should be kept at 4°C and used within a short period of time.
Microbiological Analysis
Escherichia coli ATCC 8739Inhibited
Pseudomonas aeruginosa ATCC 27853Growth, yellow-green colonies
Pseudomonas aeruginosa ATCC 10145Growth, yellow-green colonies
Pseudomonas aeruginosa ATCC 9027Growth, yellow-green colonies
Staphylococcus aurous ATCC 25923Inhibited
Appearance
Beige, homogeneous, free flowing powder.
Solubility
Light to medium beige, slightly turbid.
pH (25°C)
7.2±0.2
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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