Aleksieva V
Vet Med Nauki. 1980;17(2):85-91.
The contamination with microorganisms (enterococci and coliforms) indicative of hygeinic status was studied in 98 samples of white brine cheese (33 samples of cow's milk cheese and 65 of ewe's milk cheese) prepared for sale. It was found that 22.4 per cent of the cheese samples do not contain enterococi in 0.01 g product but in 15.3 per cent their amount exceeds 100 000/g. No relationship was found between enterococci finding and cheese content of salt, titratable and active acidity. Cheese contamination with coliforms bacteria is limited--merely 3.1 per cent of the samples contain coliforms in quantity of 10--100/g. No difference was found in the contamination of cow's and ewe's milk white brine cheese with enterococci and coliforms. The enterococci microflora in white brine cheese and in the brine is represented predominantly by Str. faecium and Str. durans (91.3 per cent of the isolated strains). The coliforms are represented by E. coli, Enterob. aerogenes and Citrob. intermedium.
对准备销售的98份白卤干酪样本(33份牛奶干酪样本和65份羊奶干酪样本)中表明卫生状况的微生物(肠球菌和大肠菌群)污染情况进行了研究。结果发现,22.4%的干酪样本在0.01克产品中不含肠球菌,但15.3%的样本中肠球菌数量超过100000/g。未发现肠球菌检出情况与干酪的盐分含量、可滴定酸度和活性酸度之间存在关联。干酪被大肠菌群污染的情况有限——仅3.1%的样本中大肠菌群数量为10-100/g。牛奶和羊奶白卤干酪在肠球菌和大肠菌群污染方面未发现差异。白卤干酪及其卤水中的肠球菌菌群主要由屎肠球菌和耐久肠球菌组成(分离菌株的91.3%)。大肠菌群由大肠杆菌、产气肠杆菌和中间柠檬酸杆菌组成。