979 resultados para Most Probable Number
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Medicina Veterinária - FMVZ
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Boas práticas de fabricação (bpf), análise de tomate e água em restaurantes da cidade de Botucatu-SP
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Pós-graduação em Agronomia (Energia na Agricultura) - FCA
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Com vistas a contribuir e aprimorar o processo de gestão em andamento das águas subterrâneas do Estado de Rondônia, os dados de 384 resultados de análises físico-químicas e/ou bacteriológicas de poços constantes nos arquivos do 2º Zoneamento Sócio-Econômico-Ecológico do Estado de Rondônia – ZSEE/RO, apresentados por localidades, foram tratados e reorganizados por bacia hidrográfica. Buscou-se a caracterização da qualidade de águas subterrâneas nas principais bacias hidrográficas do Estado de Rondônia, considerando propriedades físicas (cor, pH e turbidez), químicas (cloreto, ferro total, sulfato, oxigênio consumido, dureza total, dureza em cálcio, dureza em magnésio, sólidos totais, nitrogênio nitrito, nitrogênio nitrato, gás carbônico livre e alcalinidade HCO3) e bacteriológicas (contagem padrão de bactérias, número mais provável de coliformes totais, número mais provável de coliformes fecais e número mais provável de colônias - método membrana filtrante). Para testar o ajuste dos dados à distribuição normal foi utilizado o método de Kolmogorov-Smirnov, modificado por Lilliefors. O estudo demonstrou que as águas subterrâneas analisadas possuem boa qualidade físico-organoléptica. As bacias dos rios Madeira e Machado apresentam maiores alterações nos valores de pH, cloreto e nitrato, caracterizando perda de qualidade dos recursos hídricos subterrâneos, em função do adensamento populacional. A bacia hidrográfica do rio Abunã caracteriza-se como a de maior risco de contaminação fecal. Em geral, as águas analisadas apresentam resultados que excedem os padrões bacteriológicos de potabilidade, necessitando de tratamento por cloração ou fervura e prévia filtração para consumo humano.
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Pós-graduação em Medicina Veterinária - FCAV
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The state of São Paulo is the largest producer of cane sugar in Brazil, with approximately 346 million tons in 2008/2009. This great production, associated with hot weather favors trade in sugar cane juice in most cities in the state. Contamination by parasites usually occurs during production but the contamination by bacteria is related with foodhandlers, equipment (grinders) and utensils used in the extraction. Due the lack of data in Botucatu and region, the objective of this study was to analyze 50 samples of syrup, according to the microbiological requirements of RDC Nº 12 (determination of Most Probable Number of thermotolerant coliform and the presence of Salmonella sp) as well the presence of Staphylococcus aureus and Trypanosoma cruzi. Salmonella sp., Staphylococcus aureus and Trypanosoma cruzi were not found, however 82% of the samples presented a higher contamination by thermotolerant coliform than that allowed by microbiological parameters, demonstrating inadequate conditions for retail, besides the lack of hygienic instructions of the sellers
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Food poisoning can cause infection on its consumers by the presence of pathogenic bacteria, such as Salmonella and Staphylococcus aureus. Therefore, it is important to check its quality, which can be affected by many factors. The sanitary quality of foods can be assessed by thermotolerant coliform. Since food safety is a matter of great concern, this study aimed to evaluate the hygienic sanitary conditions of samples of ice cream and desserts marketed in the city of Botucatu, by determining the most probable number (MPN) of thermotolerant coliform, identification and enumeration of coagulase positive staphylococci and verification of classical enterotoxin production by strains of S. aureus and also for detecting the presence of Salmonella sp. Among the ice cream analyzed, 56.3% were unfit for consumption and between the creamy desserts, the percentage of unfit samples was 33.3%. Coagulase positive Staphylococcus and Salmonella were not found in the samples. It is then an inadequacy in handling and / or storage conditions in a considerable number of samples, indicating need for improvement in the conditions of preparation
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Lately, the acceptability of fermented dairy beverages has been increased, due to the nutritional benefits, the practical consumption and the low cost of product for the manufacturers, and consequently for final market price to the consumers. During the manufacturing process, these products can be susceptible to microbiological contamination. The present study investigated the contaminant microbiota in fermented dairy beverages produced by small- and medium-sized companies, by means of analyses on moulds and yeasts counting, determination of the Most Probable Number (MPN) of total and thermo tolerant coliforms, Escherichia coli and Salmonella spp. detection, and determination of pH value. In spite of the absence of Salmonella spp., a high counts of yeasts and moulds were found, and E. coli was detected in five samples (16.67 %); and the sample were classified as “products in poor sanitary conditions”, because they showed thermo-tolerant coliforms counting higher than the standard established by the legislation in force. Therefore, quality programs such as Good Manufacturing Practices (GMP) and Hazard Analysis and Critical Control Points (HACCP) should be employed to prevent any contamination risk, in order to provide safe products to consumers.