Phenylethyl Blood Agar Base (Anaerobic) 500G

Phenylethyl Blood Agar Base (Anaerobic) is recommended for selective isolation and cultivation of fastidious anaerobic bacteria. This media inhibits facultative anaerobic gram-negative bacteria. Supplementation of medium with L-cystine permits growth of certain thiol-dependent or sulphur containing amino acids- requiring bacteria and fastidious Streptococci. Addition of phenylethanol to a nutritive medium permits the growth of gram-positive organisms but inhibits the gram-negative organisms found in the same specimen.