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Food Science and Technology (Campinas)

On-line version ISSN 1678-457X

Abstract

SILVEIRA, Débora Rodrigues da; LOPES, Nathalie Almeida; GONZALEZ, Helenice de Lima  and  TIMM, Cláudio Dias. Salmonella Typhimurium, Infantis, Derby, and Enteritidis survival in pasty dulce de leche. Ciênc. Tecnol. Aliment. [online]. 2012, vol.32, n.4, pp. 715-718.  Epub Aug 23, 2012. ISSN 1678-457X.  http://dx.doi.org/10.1590/S0101-20612012005000092.

Dulce de leche is a food obtained by concentration and heating of milk with the addition of sucrose. The common practice of opening the dulce de leche containers in retail markets can lead to food contamination by Salmonella. The objective of this study was to evaluate the survivability of Salmonellaenterica subsp. enterica serotypes Typhimurium, Enteritidis, Infantis and Derby in pasty dulce de leche. Aliquots of this sweet were experimentally contaminated with these microorganisms and later analyzed to evaluate microorganism viability after storage for 0, 1, 2, 3, 5, 10, and 20 days. Salmonella was recovered up to the 20th day. These results are a warning about the need to adopt proper sanitary-hygienic measures for handling and packaging this food aiming at food safety.

Keywords : food safety; foodborne diseases; pathogenic microorganisms.

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