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Registros recuperados: 12 | |
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Tondo,Eduardo Cesar; Machado,Taís Raquel Marcon; Malheiros,Patrícia da Silva; Padrão,Débora Kruger; Carvalho,Ana Lyl de; Brandelli,Adriano. |
The adhesion of Salmonella (S.) strains to stainless steel and polyethylene and their inactivation by biocides used in food industry was investigated. Coupons of stainless steel and polyethylene were immersed in bacterial suspensions of S. Enteritidis, S. Typhimurium, and S. Bredeney during 15, 30, and 60 minutes, and submitted to different concentrations of peracetic acid (PAA), sodium hypochlorite (NaOCl), and quaternary ammonium (Quat) sanitizers. Hydrophobicity of the surfaces was evaluated by contact angle measurements using the sessile drop method and bacterial adhesion was accompanied through bacterial counts and scanning electron microscopy (SEM). Results indicated that the three serovars of Salmonella presented similar adhesion to both materials... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Salmonella; Adhesion; Biocides; Stainless steel; Polyethylene. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000400022 |
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Malheiros,Patrícia da Silva; Paula,Cheila Minéia Daniel de; Tondo,Eduardo Cesar. |
No período de 1999 a 2002, uma linhagem geneticamente caracterizada de Salmonella Enteritidis esteve envolvida em mais de 90% das salmoneloses ocorridas no RS. Este trabalho teve por objetivo avaliar a cinética de crescimento dessa linhagem, comparando-a com o crescimento de uma linhagem de S. Typhimurium e de S. Bredeney não envolvida em surtos alimentares. Para tanto, cada linhagem foi semeada separadamente em caldo nutriente (CN) e em salada de batata com maionese caseira (SMC), os quais foram mantidos a 30 °C e 9,5 °C. Os resultados obtidos em laboratório foram comparados com os resultados modelados pelo Pathogen Modelling Program, USDA. Em CN, a cinética de crescimento a 30 °C foi semelhante para todas as linhagens, as quais atingiram aproximadamente... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Salmonella; RS; Cinética de crescimento; Maionese caseira. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612007000400013 |
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Schneid,Andréa dos Santos; Rodrigues,Kelly Lameiro; Chemello,Davi; Tondo,Eduardo Cesar; Ayub,Marco Antônio Zacchia; Aleixo,José Antonio Guimarães. |
In this work, an indirect ELISA based on a monoclonal antibody (MAb) specific for an outer membrane protein of Salmonellaenterica serovar Enteritidis was used for detection of Salmonella in 154 samples of chicken meat. Its efficiency was determined through comparison with the results obtained from the conventional method. The prevalence of samples contaminated with Salmonella was 23% with the conventional culture method, and 26% with the ELISA. From thirty-five samples positive for Salmonella by the conventional method, 33 were also positive by ELISA. Seven other samples were only positive in the ELISA. Comparison of the results obtained in the two methods showed an ELISA sensitivity and specificity of 94%, and positive and negative predictive values of... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Salmonella; Monoclonal antibody; Policlonal antibody; ELISA. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000300027 |
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Costalunga,Suzana; Tondo,Eduardo Cesar. |
Salmonella spp. was the major cause of reported foodborne diseases in the last years in the State of Rio Grande do Sul, South of Brazil. Epidemiological data on salmonellosis, occurred in the period of 1997 to 1999 and supplied by the Division of Sanitary Surveillance (DVS/RS), were analysed according to the following factors: total number of confirmed outbreaks, number of people involved, outbreaks incidence according to the period of the year, age and sex of involved people, food vehicle, food storage conditions, local where the disease occurred, and possible causes of the outbreaks. The results indicated that 8217 people were involved, and 1557 had to be hospitalized. The highest number of outbreaks occurred during springtime and the principal age group... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spp.; Foodborne disease; Salmonellosis. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000400013 |
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Klug,Tâmmila Venzke; Segaspini,Moises Jardim; Novello,Júnia Capua de Lima; Moresco,Amanda Bianchini; Paiva,Ana Raisa; Rios,Alessandro de Oliveira; Tondo,Eduardo Cesar; Bender,Renar João. |
ABSTRACT: In the present study, tannin extracts (rinsed or not) were compared to the use of sodium hypochlorite and tap water on fresh cut crisp leaf lettuce stored under modified atmosphere packaging. Effects of these sanitizers on total color difference and microbial levels of the product after sanitization and storage for 9 days at 3°C were evaluated. Performance of rinsed SM(r) tannin extract was comparable to the results of chlorine solution for all the analyzed parameters and; furthermore, that extract presented a high reduction in the initial bacterial count of minimally processed lettuce. However, storage of tannin extracts, did not impart better outcomes than the use of tap water. Therefore, the tannin extract storage SM(r) could be used in... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fresh cut lettuce; Tannin extracts; Postharvest storage; Acacia mearnsii De Wild. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000801357 |
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Registros recuperados: 12 | |
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