Consulta: creatorFacets:"Tondo,Eduardo Cesar"
Registros recuperados: 11
Data/hora: 16/06/2024 16:31:14

Salmonelloses in the State of Rio Grande do Sul, southern Brazil, 2002 to 2004
Provedor de dados: Brazilian Journal of Microbiology
Autores: Wagner,Vanessa Rech; Silveira,Josete Baialardi; Tondo,Eduardo Cesar.
Salmonella has been identified as the main aetiological agent responsible for foodborne diseases in several countries worldwide, including Brazil. In the State of Rio Grande do Sul (RS), southern Brazil, previews studies analysed official foodborne illnesses data, identifying Salmonella as the main bacterial agent of foodborne diseases during the period of 1997 to 2001. The present study aimed to analyse the official epidemiological data on salmonelloses occurred in the State of RS, during the period of 2002 to 2004. Even though data on recent salmonelloses were available, only data concerning the period comprising in 2002 to 2004 were analysed because the official worksheet records presented more consistent information about the salmonellosis outbreaks....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonelloses; Brazil; The State of Rio Grande do Sul.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300009

Assessing the growth and recovery of Salmonella Enteritidis SE86 after sodium dichloroisocyanurate exposure
Provedor de dados: Brazilian Journal of Microbiology
Autores: Ferreira,Fernanda Stoduto; Horvath,Mariana Bandeira; Tondo,Eduardo Cesar.
The objective of the present study was to assess the growth and the recovery of Salmonella (S.) Enteritidis SE86 in different diluents, culture media and using different plating methods after the exposure to 200 mg/kg sodium dichloroisocyanurate (NaDCC). Before and after NaDCC exposure, SE86 was cultured at 30 °C and 7 °C in the following diluents: Peptone water (P), Saline solution (SaS), Peptone water+Saline solution (P+SaS), Peptone water+Tween 80+Lecithin+Sodium thiosulfate (P+N) and Saline solution+Tween 80+Lecithin+Sodium thiosulfate (SaS+N). The SaS diluent was chosen because it was able to maintain cells viable without growth and was further used for plating SE86 on non selective medium (Tryptic Soy Agar-TSA) and on selective media (Mannitol Lysine...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonella Enteritidis SE86; Diluents; Plating methods; Stressed cells; Sodium dichloroi-socyanurate.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300018

Salmonellosis in Rio Grande do Sul, Brazil, 1997 to 1999
Provedor de dados: Brazilian Journal of Microbiology
Autores: 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

Antagonistic activity of Lactobacillus acidophilus LA10 against Salmonella enterica serovar Enteritidis SE86 in mice
Provedor de dados: Brazilian Journal of Microbiology
Autores: Scapin,Diane; Grando,Williani Fabiola; Rossi,Eliandra Mirlei; Perez,Karla Joseane; Malheiros,Patrícia da Silva; Tondo,Eduardo Cesar.
Salmonella enterica serovar Enteritidis is one of the main pathogens responsible for foodborne illness in Brazil. Probiotic bacteria can play a role in defense and recovery from enteropathogenic -infections. In this study, the ability of Lactobacillus acidophilus LA10 to colonise and exert anta-gonistic effects in the gastrointestinal tract was tested before and during experimental infection in conventional mice contaminated with S. Enteritidis (SE86). A dose of 0.1 mL containing 10(8) viable cells of SE86 and L. acidophilus LA10 was orally administered by gavage to mice. The experiment was divided into groups. As a negative control, Group 1 was administered only sterile saline solution. As a positive control, Group 2 was administered only SE86. Group 3...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: S. Enteritidis SE86; Probiotics; Mice; Lactobacillus acidophilus LA10.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100008

Assessing the epidemiological data of Staphylococcus aureus food poisoning occurred in the State of Rio Grande do Sul, Southern Brazil
Provedor de dados: Brazilian Journal of Microbiology
Autores: Lima,Gustavo Costalunga; Loiko,Márcia Regina; Casarin,Letícia Sopeña; Tondo,Eduardo Cesar.
Staphylococcal food poisoning is one of the most frequent foodborne illnesses worldwide and it is caused by the ingestion of food contaminated with enterotoxins produced by some strains of Staphylococcus (S.) aureus. In the State of Rio Grande do Sul (RS), Southern Brazil, S. aureus has been identified as the second most frequent agent of foodborne illnesses in the last two decades. The aim of the present study was to assess and analyse the epidemiological data of S. aureus food poisoning occurred in the State of RS during the years of 2000 to 2002. The official records of epidemiological investigations carried out by the Sanitary Surveillance Services of the State of RS were analysed. Among foodborne outbreaks for which aetiology was determined, S. aureus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Staphylococcus aureus; Food poisoning; RS State; Brazil.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300014

Evaluation of two recommended disinfection methods for cleaning cloths used in food services of southern Brazil
Provedor de dados: Brazilian Journal of Microbiology
Autores: Bartz,Sabrina; Tondo,Eduardo Cesar.
In the State of Rio Grande do Sul (RS), Southern Brazil, a good manufacturing practices regulation was published recommending two disinfection methods for cleaning cloths used in food services. The aim of the present study was to evaluate the efficacy of those methods. Cleaning cloths were sampled without prior notice at food services, on common working days. For the analyses, the cloths were divided in two sub-samples, being one of them microbiologically analyzed. The second sub-sample was further divided in two pieces and submitted to hand washing for two minutes. After that, one piece was boiled in water for 15 min and the other one was soaked in a 200 ppm sodium hypochlorite solution for 15 min. Both pieces of cloth were submitted to microbiological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cleaning cloths; Disinfection; The State of Rio Grande do Sul; Brazilian food services.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300015

Antimicrobial resistance and PCR-ribotyping of Shigella responsible for foodborne outbreaks occurred in southern Brazil
Provedor de dados: Brazilian Journal of Microbiology
Autores: Paula,Cheila Minéia Daniel de; Geimba,Mercedes Passos; Amaral,Patrícia Heidrich do; Tondo,Eduardo Cesar.
Little information about Shigella responsible for foodborne shigellosis is available in Brazil. The present study aimed to investigate the antimicrobial resistance and PCR-ribotyping patterns of Shigella isolates responsible for foodborne outbreaks occurred in Rio Grande do Sul State (RS), Southern Brazil in the period between 2003 and 2007. Shigella strains (n=152) were isolated from foods and fecal samples of victims of shigellosis outbreaks investigated by the Surveillance Service. Identification of the strains at specie level indicated that 71.1% of them were S. flexneri, 21.5% S. sonnei, and 0.7% S. dysenteriae. Ten strains (6.7%) were identified only as Shigella spp. An increasing occurrence of S. sonnei was observed after 2004. Most of the strains...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Shigellosis; Shigella; Antimicrobial; PCR-Ribotyping; RS/Brazil.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000400015

Adhesion and biocides inactivation of Salmonella on stainless steel and polyethylene
Provedor de dados: Brazilian Journal of Microbiology
Autores: 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

Evaluation of an indirect ELISA for the detection of Salmonella in chicken meat
Provedor de dados: Brazilian Journal of Microbiology
Autores: 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

Occurrence of Salmonella spp. and generic Escherichia coli on beef carcasses sampled at a brazilian slaughterhouse
Provedor de dados: Brazilian Journal of Microbiology
Autores: Silva,Fabiana Fernanda Pacheco da; Horvath,Mariana Bandeira; Silveira,Juliana Guedes; Pieta,Luiza; Tondo,Eduardo Cesar.
A total of 120 beef carcasses were analyzed during processing at a slaughterhouse in southern Brazil. The carcasses were sampled by swab at three different steps of the slaughter line and then they were tested for Salmonella and E. coli. The Salmonella isolates were also examined for antimicrobial susceptibility. Salmonella prevalence distribution was modeled and the probability of contamination was simulated using @Risk program and 10,000 interactions. Results demonstrated that 4 beef carcasses (3.3%) were positive for Salmonella only in the first point. The six isolates of Salmonella were classified: S. Newport (n = 3), S. Saintpaul (n = 2) and S. Anatum (n = 1). No Salmonella strains exhibited resistance to any of the antimicrobials tested. As expected,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonella; E. coli; Beef carcasses; Slaughter line; Antimicrobial susceptibility.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000100004

Tannin extracts on quality of fresh cut crisp leaf lettuce
Provedor de dados: Ciência Rural
Autores: 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