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Provedor de dados:  Ciência Rural
País:  Brazil
Título:  Behavior of Staphylococcus aureus and autochthone microbiota in fresh sausages added of sodium nitrite and stored under refrigeration
Autores:  Correia,Lucyanne Maria Moraes
Pereira,Juliano Gonçalves
Pinto,José Paes de Almeida Nogueira
Barcellos,Vinicius Cunha
Bersot,Luciano dos Santos
Data:  2014-10-01
Ano:  2014
Palavras-chave:  Fresh sausage
S. aureus
Resumo:  Fresh sausages are cured meat products that may be contaminated with Staphylococcus aureus during the manufacturing procedure, which is frequently related with inadequate handling practices. The use of nitrite in meat products has proven efficacy against Clostridium botulinum, and studies indicate that bactericidal action against S. aureus depends on factors that are intrinsic and extrinsic to the product. The objective of the present study was to evaluate the effect of nitrite concentration, and pH on S. aureus and psychrotrophic autochthone microbiota in fresh sausages stored at different times and temperatures. Fresh sausage were produced at nitrite concentrations 50, 150 and 200ppm and contaminated with S. aureus. The sausages were storage at refrigeration (7 and 12°C) and the quantification of S. aureus and psychrotrophic microorganisms was carried out on days 0, 2, 4, 7, and 10. Results showed that nitrite concentrations and the temperatures used had minimal effect on the multiplication of S. aureus and psychrotrophic autochthone microbiota. Final counts depended only on the length of storage: at the end of 10 days, counts were statistically similar in the different groups, showing that temperature and nitrite concentrations used did not control microbial growth effectively. It is suggested that the product should be stored below 7°C or at freezing temperatures for greater microbiological stability
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Universidade Federal de Santa Maria
Relação:  10.1590/0103-8478cr20131142
Formato:  text/html
Fonte:  Ciência Rural v.44 n.10 2014
Direitos:  info:eu-repo/semantics/openAccess

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