Many media have been developed to enumerate Clostridium perfringens from foods. In this study, six media [iron sulfite
(IS) agar, tryptose sulfite cycloserine (TSC) agar, Shahidi Ferguson perfringens (SFP) agar, sulfite cycloserine azide (SCA),
differential clostridial agar (DCA), and oleandomycin polymyxin sulfadiazine perfringens (OPSP) agar] were compared in a
prestudy, of which four (IS, TSC, SCA, and DCA) were selected for an international collaborative trial.