Stiles M E, Ramji N W, Ng L K, Paradis D C
Can J Microbiol. 1978 Dec;24(12):1502-8. doi: 10.1139/m78-240.
Raw and processed meats were analyzed for presumptive group D streptococci using KF streptococcus agar. Counts were compared with coliform, presumptive Escherichia coli, and Enterobacteriaceae counts but no meaningful relationships were observed. Results indicated that group D streptococci and E. coli type I were principally contaminants from the packing plant, rather than at retail level. The predominating group D streptococcus in both beef and pork cuts was Streptococcus faecalis, while in processed meat (bologna), the predominating group D streptococci were Streptococcus faecium var. durans and Streptococcus faecium. Streptococcus bovis was not detected among the isolates from any meat samples. Marked differences were noted in numbers of group D streptococci in processed meat from different manufacturers. The results did not support the use of group D streptococci as alternative indicator organisms for meats. However, the association of group D streptococci with packing plant contamination may prove to be of value.
使用KF链球菌琼脂对生肉和加工肉进行了D群链球菌的初步分析。将计数结果与大肠菌群、疑似大肠杆菌和肠杆菌科计数进行了比较，但未观察到有意义的关系。结果表明，D群链球菌和I型大肠杆菌主要是包装厂的污染物，而非零售层面的污染物。牛肉和猪肉切块中占主导地位的D群链球菌是粪肠球菌，而在加工肉（博洛尼亚香肠）中，占主导地位的D群链球菌是耐久肠球菌变种和屎肠球菌。在任何肉类样品的分离物中均未检测到牛链球菌。不同制造商生产的加工肉中D群链球菌的数量存在显著差异。结果不支持将D群链球菌用作肉类的替代指示生物。然而，D群链球菌与包装厂污染的关联可能具有一定价值。
