Modified Duncan Strong (DS) Medium is used for isolation and differentiation of Clostridium perfringens from other clostridia from food on the basis of raffinose fermentation. This medium is formulated as per Duncan and Strong and recommended by APHA for the isolation and differentiation of C. perfringens. It is also recommended for the rapid detection of the Clostridium perfringens enterotoxin.
1. Duncan C. and Strong D., 1969, Appl. Microbiol., 16 : 82.2.Labbe R. G. and Rey D. K., 1979, Appl. Microbiol., 13 : 559.3.Downes F. P. and Ito K., (Eds.), 2001, Compendium of Methods for the Microbiological Examination of Foods, 4th Ed., APHA, Washington, D.C.