Bacteroides vulgatus ATCC 8482 ( MIC =600 microg/ml), Bifidobacterium adolescentis ATCC 15703 ( MIC =150 microg/ml), Bifidobacterium breve ATCC 15700 ( MIC =300 microg/ml), Bifidobacterium catenulatum ATCC 27539 ( MIC =150 microg/ml), B. longum ATCC 15707 ( MIC =75 microg/ml), Eubacterium contortum ATCC 25540 ( MIC =32.5 microg/ml), Ruminococcus obeum ATCC 29174 ( MIC =32.5 microg/ml), R. torques ATCC 27756 ( MIC =300 microg/ml), R. gnavus ATCC 29149 ( MIC =75 microg/ml), C. nexile ATCC 27757 ( MIC =150 microg/ml), C. oroticum ATCC 13619 ( MIC =600 microg/ml), C. perfringens CpA ( MIC =75 microg/ml), C. difficile serogroup A B-1 ( MIC =75 microg/ml), C. difficile serogroup C C253 ( MIC =75 microg/ml), C. difficile serogroup D ATCC 43598 ( MIC =150 microg/ml), C. difficile serogroup F M-1 ( MIC =150 microg/ml), C. difficile serogroup S3 79685 ( MIC =75 microg/ml), C. difficile ATCC 43255 ( MIC =150 microg/ml), C. botulinum type A CIP 38 ( MIC =75 microg/ml), C. botulinum type BNCTC 7273 ( MIC =75 microg/ml), C. botulinum type E NCTC 8266 ( MIC =75 microg/ml), C. sordellii VPI 9048 ( MIC =150 microg/ml), C. bifermentans NCTC 506 ( MIC =75 microg/ml), C. septicum ATCC 12464 ( MIC =150 microg/ml), C. sporogenes ATCC 19404 ( MIC =300 microg/ml), B. cereus Z4222, TZ415 ( MIC =75 microg/ml), B. cereus Z4234, K1231, P2101 ( MIC =150 microg/ml)