Cragg J, Andrews A V
J Hyg (Lond). 1973 Jun;71(2):417-22. doi: 10.1017/s0022172400022865.
A significant proportion of a consignment of branded Parma Ham was found to have ;blown' tins; the associated bacterial flora was therefore investigated. No Salmonella or Shigella were found. Clostridium welchii type A and Clostridium bifermentans were isolated in moderate numbers only from enrichment cultures of the ham. Staphylococcus spp. and coryneform bacteria were obtained from all tins and Group D streptococci were present in a few. No food-poisoning cases were associated with this ham.
一大批品牌帕尔马火腿被发现有“鼓胀”的罐头;因此对相关的细菌菌群进行了调查。未发现沙门氏菌或志贺氏菌。仅从火腿的富集培养物中分离出少量A型韦氏梭菌和双发酵梭菌。从所有罐头中都分离出葡萄球菌属和棒状杆菌,少数罐头中存在D组链球菌。没有与这批火腿相关的食物中毒病例。