Chromogenic Agar Burkholderia Cepacia is a selective medium specially formulated for the isolation and detection of Burkholderia cepacia. This medium contains selective agents to improve B. cepacia recovery through the inhibition of common contaminants. Chromogenic substrate is added to detect B. cepacia by means of a color change in its colonies. Bile salts inhibit most Gram-positive cocci except for enterococci. Sodium pyruvate increases the recovery of stressed cells. Tween 80 and soya lecithin neutralize quaternary ammonium compounds and parahydroxybenzoates.