Tiwari N P, Kadis V W
Food Laboratory, Agricultural Regional Centre, Airdrie, Alberta, Canada TOM OBO.
J Food Prot. 1981 Nov;44(11):821-827. doi: 10.4315/0362-028X-44.11.821.
A total of 124 delicatessen meat products were analysed for microbiological quality shortly after purchase and following storage at 22 C for 24 h. Sixty-seven of these products were portion packages and 57 were cuts from bulk products. Coliforms, coagulase-positive staphylococci and Clostridium perfringens contamination was low. Salmonella was not detected in any of the samples. Initially, 34.3% of the portion-packed and 24.5% of bulk cuts contained more than 10 total aerobic plate count per g and, following storage this proportion increased to 62.7% and 57.9%, respectively. Eight samples (11.9%) of portion-packed and seven samples (12.3%) of bulk cuts contained more than 10 psychrotrophs per g initially. After storage, 35% of both types of products yielded >10 psychrotrophs per g. Significant levels of fecal streptococci and yeasts were also isolated from many of these products, indicating need for improvement in manufacturing procedures and retail storage conditions. However, the results of this investigation indicated that chances of a public health hazard from delicatessen meat products would be low.
共对124种熟食肉类产品进行了分析,在购买后不久以及在22℃储存24小时后检测其微生物质量。其中67种产品为分装包装,57种为散装切块。大肠菌群、凝固酶阳性葡萄球菌和产气荚膜梭菌的污染程度较低。所有样品中均未检测到沙门氏菌。最初,34.3%的分装包装产品和24.5%的散装切块每克需氧平板计数总数超过10个,储存后,这一比例分别增至62.7%和57.9%。最初,8个分装包装样品(11.9%)和7个散装切块样品(12.3%)每克嗜冷菌数量超过10个。储存后,两种产品中均有35%每克嗜冷菌数量超过10个。从许多此类产品中还分离出了大量粪链球菌和酵母菌,这表明生产流程和零售储存条件需要改进。然而,本次调查结果表明,熟食肉类产品造成公共卫生危害的可能性较低。