Rhapsody Agar for Pseudomonas spp.

The peptones constitute nutritive substrates necessary for the rapid growth of Pseudomonas. 

The chromogenic substrate contained in the medium is hydrolyzed by all Pseudomonas. As a result, colonies present a light blue to blue-green coloration. 

The selective system and the cephalosporin insure the inhibition of most of the secondary flora.