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

Selective isolation of Pseudomonas aeruginosa and other gram-negative, non-fermentative bacteria.

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.

Beige, homogeneous, free flowing powder

Light to medium beige, slightly turbid

7.2±0.2

Escherichia coli ATCC 8739: Inhibited
Pseudomonas aeruginosa ATCC 27853: Growth, yellow-green colonies
Pseudomonas aeruginosa ATCC 10145: Growth, yellow-green colonies
Pseudomonas aeruginosa ATCC 9027: Growth, yellow-green colonies
Staphylococcus aurous ATCC 25923: Inhibited

This 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.