[Pseudomonas APS nutrient medium for the isolation and identification of Pseudomonas aeruginosa and Pseudomonas...

Pseudomonas APS selective medium has been developed on the basis of a newly detected selective antibacterial action of oxaphenamide (p-oxyphenylsalicylamide), a cholagogue. This medium permits a single-stage combined isolation and identification of P. aeruginosa after 16-24 hrs incubation of inoculated material at 42 degrees C. If the material is incubated at 35-37 degrees C, isolation of P. putida and P. aeruginosa is possible, that are differentiated by a nitroreductase microtest within 3 hrs. The sensitivity and selective ability of the developed medium are superior to other media manufactured in this country and commercial media with cetrimide and irgasan, produced abroad.