INFLUENCE OF SELECTIVE AGENTS ON RECOVERY OF COLD‐STRESSED CELLS OF Clostridium perfringens

Abstract
Recovery of nonstressed, refrigerated, and frozen cells of two strains of C. perfringens, HR2 and FDl, was observed in the presence of various selective agents. Sodium metabisulfite had little influence on recovery of cold‐stressed cells. D‐cycloserine, kanamycin sulfate, oleandomycin phosphate, and polymyxin permitted good recoveries for strain FD1, but recoveries for strain HR2 were not as high as for FD1 in the presence. of these compounds. Sodium sulfadiazine and neomycin always produced low recoveries for both strains; inhibitory effects were most pronounced for frozen cells. Authors Apilukrivogse and Walker are wirh the Depr. of Food Technology, Iowa Stare Univ., Ames, IA 50011.