7 results on '"Joelza Silva Carvalho"'
Search Results
2. Occurrence of Methicillin-Resistant Staphylococcus aureus in Ready-to-Eat Raw Fish from Japanese Cuisine Restaurants in Salvador, Brazil
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Nilma Cintra Leal, Isabela Maciel Melo, Antenor Ferreira Leal Neto, Danilo Elias Xavier, Joelza Silva Carvalho, Carlos Alberto das Neves Andrade, Luana Milen Varjão, and Rogeria Comastri de Castro Almeida
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Methicillin-Resistant Staphylococcus aureus ,Veterinary medicine ,Staphylococcus aureus ,Restaurants ,medicine.drug_class ,Antibiotics ,Erythromycin ,Microbial Sensitivity Tests ,Biology ,medicine.disease_cause ,Microbiology ,03 medical and health sciences ,Antibiotic resistance ,Japan ,medicine ,Animals ,Cefoxitin ,030304 developmental biology ,0303 health sciences ,030306 microbiology ,biochemical phenomena, metabolism, and nutrition ,Staphylococcal Infections ,Methicillin-resistant Staphylococcus aureus ,Anti-Bacterial Agents ,Ciprofloxacin ,Vancomycin ,Brazil ,Food Science ,medicine.drug - Abstract
The presence of methicillin-resistant Staphylococcus aureus (MRSA) strains in food products is a major issue for food safety. The present study was conducted to evaluate the occurrence and antimicrobial resistance profile of S. aureus, focusing on MRSA isolates, in ready-to-eat sashimi from Japanese restaurants in Salvador, Brazil. A total of 127 sashimi samples were collected directly from the take-out service in 16 restaurants. The staphylococcal isolates were identified morphologically and biochemically with standard laboratory procedures. S. aureus isolates were tested with a disk diffusion assay against seven antibiotics, and the cefoxitin and oxacillin were used to identify MRSA strains. Isolates with the MRSA phenotype were confirmed with a PCR assay. S. aureus was found in 73% of the sashimi samples, including sashimi from tuna (75.5% of samples) and salmon (72.5% of samples). Among those positive samples, 37% were contaminated with MRSA strains, found among 38.8% of salmon sashimi and 34.0% of tuna sashimi. Penicillin resistance was the most common type of antimicrobial resistance, found in 65.5% of the sashimi samples, followed by resistance to tetracycline (22.5%), erythromycin (16.0%), and ciprofloxacin (3.2%). Only two S. aureus isolates collected from different fish samples and restaurants had presumed resistance to vancomycin. The high prevalence of S. aureus and MRSA in these sashimi samples indicates a potential risk for foodborne disease, especially MRSA, spreading in the community. HIGHLIGHTS
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- 2019
3. Estudo das condições microbiológicas de farinhas de mandioca (Manihot esculenta Crantz) comercializadas no centro de abastecimento de Alagoinhas, Bahia
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Juliana Thais Santos Silva, Joelza Silva Carvalho, and Vera Lúcia Costa Vale
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- 2012
4. Food Control
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Itaciara Larroza Nunes, Joelza Silva Carvalho, Ellayne Souza Cerqueira, Lilian Santos Soares, and Rogeria Comastri de Castro Almeida
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Veterinary medicine ,Food handlers ,business.industry ,Environmental health ,digestive, oral, and skin physiology ,Medicine ,Northeast brazil ,Coagulase ,business ,Food safety ,Two stages ,Food Science ,Biotechnology - Abstract
Texto completo: Acesso restrito. p. 26 - 213 Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-01-16T20:12:56Z No. of bitstreams: 1 aaa5959.pdf: 282927 bytes, checksum: c49f686f030ca8a05cde6dabcd49fb2e (MD5) Made available in DSpace on 2013-01-16T20:12:56Z (GMT). No. of bitstreams: 1 aaa5959.pdf: 282927 bytes, checksum: c49f686f030ca8a05cde6dabcd49fb2e (MD5) Previous issue date: 2012 The aim of this study was to evaluate the level of knowledge, attitudes and practices in food safety and the presence of coagulase-positive staphylococci species on the hands of food handlers in the municipal schools of Camaçari, Bahia in northeast Brazil. This study was conducted in two stages. In the first stage, 166 food handlers were interviewed via a questionnaire to assess their food safety knowledge, attitudes and practices. In the second phase, the presence of coagulase-positive staphylococci species on the hands of food handlers was determined. The results indicated that most of the handlers had been trained (92.2%), but the level of knowledge was insufficient; the average proficiency score was
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- 2012
5. Revista de Ciências Médicas e Biológicas
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Maria Dolores Orge, Vera Lúcia Costa Vale, Maria Roseleide Bezerra Carvalho, Guiomar Ferreira Dominguez, Joelza Silva Carvalho, Priscila Itaitiana Azevedo Pinheiro Silva, Lilia F. Moura-Costa, and Guimarães, Luciene
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Contaminação ,Hortas ,Águas de irrigação ,Alface ,General Medicine - Abstract
Submitted by ROBERTO PAULO CORREIA DE ARAÚJO (ppgorgsistem@ufba.br) on 2017-06-05T16:41:22Z No. of bitstreams: 1 3_v.9_3.pdf: 439530 bytes, checksum: b92959215ab6fcc52a84cfab8f2a719c (MD5) Made available in DSpace on 2017-06-05T16:41:22Z (GMT). No. of bitstreams: 1 3_v.9_3.pdf: 439530 bytes, checksum: b92959215ab6fcc52a84cfab8f2a719c (MD5) Previous issue date: 2010-09 O consumo de hortaliças folhosas, em especial a Lactuca sativa (alface), tem aumentado devido à crescente preocupação em se obter uma alimentação mais saudável. Entretanto, quando contaminadas, elas são responsáveis pela transmissão de grande número de doenças infecciosas. Este trabalho tem como objetivo avaliar as condições sanitárias ambientais de hortaliças comercializadas nos municípios de Catu e Alagoinhas (Bahia, Brasil). Foi realizada uma avaliação ambiental para detectar possíveis fontes de contaminação das hortas. Após serem coletadas as amostras de alfaces e da água de irrigação, elas foram levadas para análises parasitológicas (técnica de sedimentação) e análises microbiológicas (número mais provável) na Universidade do Estado da Bahia (Campus II). As águas de irrigação obtidas eram provenientes de rios, nascentes e poços, sendo utilizados, como material de adubação, esterco de galinha e bovino, não existindo esgotamento sanitário nas hortas estudadas. As análises parasitológicas da alface mostraram 20% de contaminação por ancilostomídeos. Quando avaliado o grau microbiológico, os resultados mostram que 100% são positivos para coliformes na alface e 88,9% positivos para coliformes na água de irrigação, em desacordo, portanto, com a legislação vigente. Salvador
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- 2010
6. CONHECIMENTO, ATITUDES E PRÁTICAS EM SEGURANÇA ALIMENTAR DE MANIPULADORES DE ALIMENTOS EM HOSPITAIS PÚBLICOS DE SALVADOR, BAHIA
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Ellayne Souza Cerqueira, Wellington Luis Reis Costa, Lucimara Cardoso Oliveira, Jeane dos Santos Ferreira, Joelza Silva Carvalho, and Rogeria Comastri de Castro Almeida
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Food handlers ,business.industry ,Environmental health ,Safety knowledge ,Developing country ,General Medicine ,Psychology ,Food safety ,business ,Logistic regression ,Developed country - Abstract
Foodborne diseases have been increasing in recent years, with a greater impact on the health and economy of the developing countries than on the developed countries. The aim of this study was to evaluate the level of knowledge, attitudes and practices in food safety of food handlers in public hospitals of Salvador, Bahia. This is a descriptive, exploratory and transversal study, conducted with 237 food handlers from ten public hospitals of Salvador, Bahia. The data were collected through a structured questionnaire to assess the food handlers safety knowledge, attitudes and practices. The results indicated that most of the handlers had been trained (92.2%), but their level of knowledge was insufficient. Attitude received the highest scores, 98.3% accuracy and practices were sufficient 73.4% of the handlers. Logistic regression analysis showed association between knowledge and the level of education (p 0.05). It seems that more specific training courses should be planned for food handlers.
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- 2013
7. AVALIAÇÃO MICROBIOLÓGICA DE DIFERENTES MARCAS DE ÁGUA MINERAL
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Vera Lúcia Costa Vale, Joelza Silva Carvalho, and Larissa Rafaele dos Santos Castro
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General Medicine - Abstract
As bactérias do grupo coliformes são indicadoras de contaminação fecal, sendo empregadas como parâmetro para caracterização da qualidade das águas em geral, bem como monitoramento daquelas destinadas ao consumo humano. O objetivo deste trabalho foi avaliar a qualidade bacteriológica de água mineral. Foram analisadas sete diferentes marcas comercializadas no município de Alagoinhas (BA), no período de junho de 2008 a junho de 2009, pelo método de tubos múltiplos, para a determinação do número mais provável (NMP/100 mL) de coliformes totais e termotolerantes, contagem padrão e coloração de Gram, para análise das características morfotintoriais das bactérias mesofílicas. As análises foram realizadas no Laboratório de Biologia Experimental da Universidade do Estado da Bahia (UNEB), Campus II, Alagoinhas. Nos resultados obtidos, três amostras apresentaram contaminação por coliformes totais e, dentre estas, duas revelaram contaminação por coliformes termotolerantes. Na contagem de colônias, três amostras deram resultados insatisfatórios com mais de 500 UFC/mL. Verificou-se a presença de bactérias Gram positivas e Gram negativas, cocos e bacilos. Estes resultados mostram que 57,1% das amostras encontram-se em desacordo com um ou mais padrões e são contraindicadas para consumo humano.
- Published
- 2011
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