Determinación de la calidad higiénica e investigación de Salmonella spp y Yersinia enterocolítica en helados. / [Determination of the sanitary quality and detection of Salmonella spp and Yersinia enterocolitica in ice cream]

ABSTRACT

In order to determine the sanitary quality of ice-creams and the presence of pathogenic or potentially pathogenic species of Salmonella and Yersinia enterocolitica, 50 samples from 5 different industrial and semi-industrial producers in San Luis (Argentine) were examined. The enumeration of coliforms was positive for all the samples with values less than or equal to 20/g. Fourteen per cent of the samples were positive for the investigation of Staphylococcus aureus in 1 g. For the plates enumeration 12.0