The medium is made selective for Pseudomonas aeruginosa by the
addition of X107 C.N. supplement. Alternatively the medium can be made selective for Pseudomonas species generally by the addition of
X108 C.F.C. supplement. This medium can be made selective for the isolation of Burkholderia cepacia by the addition of X140.
These reactions are mannitol fermentation and lecithinase production.
The product uses agar of very high gel strength in order that it can be used in pour-plate as well as surface inoculation techniques. The product can be remelted prior to use although it should not be held for a prolonged period in the molten stage.