Occurrence of Enterococcus spp. isolated from the milk and milk products


  • Ines Lačanin University of Veterinary and Pharmaceutical Sciences Brno, Faculty of Veterinary Hygiene and Ecology, Department of Milk Hygiene and Technology, Palackeho tř. 1/3, 612 42 Brno
  • Marta Dušková University of Veterinary and Pharmaceutical Sciences Brno, Faculty of Veterinary Hygiene and Ecology, Department of Milk Hygiene and Technology, Palackeho tř. 1/3, 612 42 Brno
  • Iva Kladnická University of Veterinary and Pharmaceutical Sciences Brno, Faculty of Veterinary Hygiene and Ecology, Palackeho tř. 1/3, 612 42 Brno
  • Renáta Karpí­šková University of Veterinary and Pharmaceutical Sciences Brno, Faculty of Veterinary Hygiene and Ecology, Department of Milk Hygiene and Technology, Palackeho tř. 1/3, 612 42 Brno




enterococci, PCR, raw cow’s milk, colostrum, whey


Enterococcus spp. is the most controversial group of lactic acid bacteria that have been for years ascribed with beneficial or detrimental role in food and feed. The aim of our study was to monitor the occurrence of Enterococcus spp. as the indicator of the contamination from collected samples of raw cow's milk, goat's colostrum and whey (n = 186). Cultures of enterococci were cultivated and purified and identified by the genus-specific and species-specific PCR method (n = 230). Among suspected isolates in total 222 isolates (96.5%) were identified as Enterococcus spp. The results were the same in all samples separately, more than 90% each of them were positive to Enterococcus spp. The results of counting the number of cultivated colonies showed that the largest number of enterococci is found in the samples of whey taken after the process of electrodialysis and the smallest in the native whey sample. From collected whey samples, 64 samples (90%) were PCR positive for enterococci species. Afterwards within the identification of several selected isolates that were identified, as Enterococcus spp. by the species-specific PCR method the most frequently presented in all of isolates was Enterococccus faecalis. Apparently the presence of enterococci was detected in all samples, but in amounts that aren't hazardous for human health. Although enterococci are oportunistic pathogens, it seems that they occur frequently in foods (especially fermented) in large numbers.


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How to Cite

Lačanin, I. ., Dušková, M. ., Kladnická, I. ., & Karpí­šková, R. . (2015). Occurrence of Enterococcus spp. isolated from the milk and milk products. Potravinarstvo Slovak Journal of Food Sciences, 9(1), 258–262. https://doi.org/10.5219/476

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