1.
J Food Prot
; 59(11): 1227-1229, 1996 Nov.
Artigo
em Inglês
| MEDLINE
| ID: mdl-31195437
RESUMO
The absence in the supernatant fluid of either extracellular amylase in cultures grown at 46°C or propionic acid has been proposed for the presumptive identification of enterotoxin-positive strains of Clostridium perfringens . However we found that propionic acid was formed by several enterotoxin-positive, as well as enterotoxin-negative, strains of this organism. In addition 4 of 13 ent+ stains produced extracellular amylase during growth at 46°C. These results indicate that neither trait can be used as a reliable indicator of the enterotoxigenicity of isolates of this organism.