African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5229

Short Communication

Salmonella Typhimurium, Enteritidis, Infantis and Derby in pasty dulce de leche

Débora Rodrigues Silveira
  • Débora Rodrigues Silveira
  • Laboratório de Inspeção de Produtos de Origem Animal – LIPOA, Departamento de Veterinária Preventiva, Universidade Federal de Pelotas, Brazil
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Nathalie Almeida Lopes
  • Nathalie Almeida Lopes
  • Laboratório de Inspeção de Produtos de Origem Animal – LIPOA, Departamento de Veterinária Preventiva, Universidade Federal de Pelotas, Brazil
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Helenice de Lima Gonzalez
  • Helenice de Lima Gonzalez
  • Laboratório de Inspeção de Produtos de Origem Animal – LIPOA, Departamento de Veterinária Preventiva, Universidade Federal de Pelotas, Brazil
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Cláudio Dias Timm
  • Cláudio Dias Timm
  • Laboratório de Inspeção de Produtos de Origem Animal – LIPOA, Departamento de Veterinária Preventiva, Universidade Federal de Pelotas, Brazil
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  •  Received: 23 April 2015
  •  Accepted: 10 July 2015
  •  Published: 14 December 2015

Abstract

In order to evaluate the fate of Salmonella Typhimurium, Enteritidis, Infantis and Derby in pasty dulce de leche, aliquots of this sweet were experimentally contaminated with these pathogenic microorganisms at 102 bacterial cells per gram, and later analysed to evaluate microorganism count after storage for 0, 1, 2, 3, 5, 10 and 20 days. Salmonella Enteritidis was able to survive for up to 20 days in dulce de leche, while Salmonella Typhimurium and Infantis for five and ten days, respectively, and serotype Derby for three days. The Salmonella serotypes studied showed different adaptive capabilities regarding population growth in pasty dulce de leche, though all representing potential hazard to the consumer's health. The results are a warning regarding the need to take the appropriate hygienic-sanitary practices during dulce de leche manufacture, packing and handling.

Key words: Salmonella, dulce de leche, food safety.

Copyright © 2024 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

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