Ikonomov L, Iotov I, Todorov D, Slavchev G
Vet Med Nauki. 1976;13(7):55-60.
Studied was in the course of several years the extent of coliform bacterial contamination and the peculiarities the bacteria present in ripened cow's and ewe's white brine cheese offered for consumption. It was demonstrated that these kinds of cheese released in the commercial system contain up to 3.1 per cent coliform bacteria. Certain correlation was established between the coliform count in the cheese and the degree of ripening, the consistence, and the aspect of the cross section surface. If hygiene measures were not observed cheese could be contaminated additionally with coliforms during handling in the shops. Coliform microflora was presented mainly by strains characteristic of fresh fecal contamination (E. coli) and urease-positive organisms of the Citrobacter and Enterobacter genera. To guarantee the consumption of qualitative (in terms of hygiene) white brine cheese it is necessary to include into the respective standards the index "coli titer" of a unit value.
在数年时间里,对用于消费的成熟牛乳和羊乳白软干酪中大肠菌群的污染程度以及所存在细菌的特性进行了研究。结果表明,投放市场的这类干酪中大肠菌群含量高达3.1%。干酪中的大肠菌群数量与成熟度、质地以及横截面外观之间存在一定的相关性。如果不遵守卫生措施,干酪在商店处理过程中可能会被大肠菌群进一步污染。大肠菌群主要由新鲜粪便污染特征性菌株(大肠杆菌)以及柠檬酸杆菌属和肠杆菌属的脲酶阳性菌组成。为确保食用符合质量(卫生方面)要求的白软干酪,有必要在相应标准中纳入单位值的“大肠杆菌滴度”指标。