Perfringens Agar Base (O.P.S.P.)
Details
Perfringens Agar Base (O.P.S.P.) is recommended for selective isolation and enumeration of Clostridium perfringens from food. Perfringens Agar with supplements gives high degree of selectivity and specificity.The antibiotics sulphadiazine, oleandomycin and polymyxin B make the medium highly selective inhibiting sulphite-reducing bacteria other than C. perfringens such as Salmonella, Bacillus species, Proteus species, Staphylococci etc. Sodium metabisulphite and ferric ammonium citrate are indicators of sulphate reduction used by C. perfringens, which produces black colonies.
