TY - JOUR AU - Lačanin, Ines AU - Dušková, Marta AU - Kladnická, Iva AU - Karpí­šková, Renáta PY - 2015/07/08 Y2 - 2024/03/28 TI - Occurrence of Enterococcus spp. isolated from the milk and milk products JF - Potravinarstvo Slovak Journal of Food Sciences JA - Potr. S. J. F. Sci. VL - 9 IS - 1 SE - Articles DO - 10.5219/476 UR - https://potravinarstvo.com/journal1/index.php/potravinarstvo/article/view/476 SP - 258-262 AB - <p><em>Enterococcus</em> 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 <em>Enterococcus</em> 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 <em>Enterococcus</em> spp. The results were the same in all samples separately, more than 90% each of them were positive to <em>Enterococcus</em> 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 <em>Enterococcus</em> spp. by the species-specific PCR method the most frequently presented in all of isolates was <em>Enterococccus</em> <em>faecalis</em>. 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.</p><!--[endif] --> ER -