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| Silveira,Débora Rodrigues da; Lopes,Nathalie Almeida; Gonzalez,Helenice de Lima; Timm,Cláudio Dias. |
| 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Food safety; Foodborne diseases; Pathogenic microorganisms. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000400012 |
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| Timm,Cláudio Dias; Riet-Corrrea,Franklin. |
| Revisam-se as intoxicações por plantas que ocorrem em suínos no Brasil, Uruguai e Argentina. Descrevem-se a intoxicação por sementes de Senna occidentalis, que causa necrose muscular segmentar e lesões hepáticas, e a intoxicação por sementes de Aeschynomene sp., caracterizada por áreas de degeneração focais e simétricas na substância branca do cerebelo. Mencionam-se, também, a intoxicação por Wedelia glauca e Xantium spp., que causam necrose centrolobular no fígado; a intoxicação por Amaranthus spp., que produz necrose tubular tóxica; a intoxicação por Solanum malacoxylon, caracterizada por calcificação dos tecidos moles; a intoxicação por frutos maduros de Melia azedarach, que causa sinais nervosos, digestivos e musculares; e a intoxicação por Crotalaria... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plantas tóxicas; Suínos; Senna occidentalis; Amaranthus spp.; Aeschynomene sp.; Melia azedarach; Wedelia glauca; Xanthium spp.; Solanum malacoxylon; Crotalaria spectabilis. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781997000300027 |
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| Conceição,Rita de Cássia dos Santos da; Sturbelle,Régis Tuchtenhagen; Timm,Cláudio Dias; Leite,Fábio Pereira Leivas. |
| Genus Salmonella bacteria are among the major pathogenic microorganisms in food. This bacterium pathogenicity is related to a number of virulence factors, among which its flagella. Flagellum expression is one of the virulence factors modulated by Quorum Sensing. Epinephrine produced by mammals uses the same signaling pathway of the 3 bacteria autoinducer. This study evaluated the effect of molecules inducer (epinephrine) and autoinducers (autoinducer 2 and autoinducer 3) and their association with the motility, growth and expression genes flhC, fliA, fliY, motA, motB e fliC of Salmonella Typhimurium (ST). Initially, ST was inoculated in BHI. Then, motility assays, growth curves and gene expression were performed by testing different concentrations of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Quorum sensing; Salmonella; Epinephrine; Autoinducer; Motility. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001202201 |
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