Description: Aero Pseudo Selective Agar is used for detecting Pseudomonas and Aeromonas in foodtuffs, waste water as well as equipment from the food industry. The medium contains sodium glutamate and starch as the only sources of nutrients. Aeromonas degrades starch, producing acid. The acid produced causes the phenol red indicator to change from red to yellow. This reaction is not exhibited by Pseudomonas. Penicillin G and Pimaricin improves the selectivity of the medium. Pseudomonas aeruginosa produces red-violet colony surrounded by a red violet zone while Aeromonas hydrophila forms yellow colony surrounded by a yellow zone.