ABSTRACT
O presente estudo teve por objetivo avaliar a qualidade microbiológica de bifes de carne bovina. Para tanto, 60 amostras de bifes de carne bovina foram coletadas, em diferentes estabelecimentos comerciais localizados em oito diferentes municípios no estado do Rio Grande do Norte, e transportadas em caixas isotérmicas, ao Laboratório de Inspeção de Produtos de Origem Animal da UFERSA. Foram realizadas análises microbiológicas para a contagem de micro-organismos aeróbios mesófilos e psicrotróficos, contagem de Staphylococcus sp., determinação do número mais provável de coliformes totais e termotolerantes, além da pesquisa de Salmonella ssp. A contagem de aeróbios mesófilos variou de 4,85 a > 7,40 log10UFC/g. Na análise de psicrotróficos, 50 amostras obtiveram contagens superiores a 7,4 log10UFC/g. A contagem de Staphyloccocus sp. foi superior a 3 log10UFC/g em 77% das amostras. A maioria das amostras apresentou número mais provável de coliformes totais e termotolerantes elevado. A presença de Salmonella ssp. foi detectada em amostras de cinco estabelecimentos. Assim, verificou-se que os bifes avaliados apresentaram baixa qualidade microbiológica, podendo representar riscos à saúde do consumidor.
This study aimed to evaluate the microbiological quality of beef steaks. Therefore, 60 samples of beef steaks were collected in different outlets located in eight different municipalities in the state of Rio Grande do Norte, and transported in cool boxes, the Inspection Laboratory Animal Origin of UFERSA products. Were analyzed for microbiological for the count of aerobic mesophilic microorganisms and pscicrotróficos, Staphylococcus sp count., Determining the most probable number of total and fecal coliforms, besides the research of Salmonella ssp. The mesophilic aerobic counts ranged from 4,84 to > 7,40 log10CFU/ g. In psychrotrophic analysis, 50 samples had counts exceeding 7,40 log10CFU/ g. The count of Staphylococcus sp. was greater than 3 log10CFU/ g in 77% of samples. Most samples showed most probable number of coliforms and thermotolerant high. The presence of Salmonella ssp. was detected in five samples establishments. Thus, it was found that the evaluated steaks showed low microbiological quality and can pose risks to consumer health.
Subject(s)
Cattle , Salmonella , Staphylococcus , Environmental Pollution , Red Meat , Cattle , Containment of BiohazardsABSTRACT
El agua dulce es un recurso vital pero cada día está más escaso debido al crecimiento demográfico, la urbanización y la industrialización, a lo que se suman los conflictos asociados a los cambios climáticos. El propósito de este estudio es aportar información actualizada sobre las guías de la OMS para el uso seguro de las aguas residuales en la agricultura. Se identificaron 33 documentos relacionados con el tema, de ellos se seleccionaron 13 publicados entre 1994 y 2007, que contemplan informes de la UNESCO, guías y manual de la OMS y revisiones críticas del tema. Se resume información sobre las guías de la OMS y la importancia de su incorporación paulatina en Cuba, se destacan, dentro de los Objetivos del Desarrollo del Milenio, aquellos relacionados con el uso seguro de aguas residuales y excretas para la agricultura y acuicultura, que justifican la actual importancia de las nuevas guías propuestas. El uso de aguas residuales en la agricultura puede aportar beneficios, pero su uso no controlado generalmente está relacionado con impactos negativos sobre la salud humana. En Cuba, el reuso del agua es poco utilizado pues si bien la agricultura urbana se ha desarrollado últimamente, se realiza con agua potable. Se debe considerar en el país las guías de la OMS para la futura valoración del uso de las aguas residuales tratadas en la agricultura sin riesgo para la salud y obtener resultados beneficiosos para la población y el ambiente. En resumen, se enumeran aspectos a considerar para el uso seguro de las aguas residuales en la agricultura en Cuba, necesarios para implementar programas nacionales de vigilancia sanitaria y de agricultura con énfasis en los aspectos microbiológicos
Drinking water is a vital but increasingly dwindling resource due to the population growth, housing planning, industrialization associated to new potential demands upon the existing water resources, to which climatic change-related events are added. The objective of this study was to provide updated information on the WHO guidelines for the safe use of wastewater in agriculture. A total of 33 documents about this topic were identified; 13 of them published from 1994 to 2007 were selected since they included UNESCO reports, WHO guidelines and manual and critical reviews. Information was summarized on the WHO guidelines and the importance of their gradual application in Cuba. Among the Millennium Development Goals, those related to the safe use of wastewater and excreta for agriculture and aquaculture were underscored because they supported the present importance of the new suggested guidelines. The use of wastewaters in agriculture may bring about benefits, but their use without restriction is generally related to negative impact on the human health. The water reuse is not very common in Cuba; although the agriculture in urban areas has developed in the last few years, it depends on drinking water. The WHO guidelines must be taken into consideration for the future assessment of the use of treated wastewater in agriculture without causing any risk for health, and for the benefits it may bring to the environment and the population as well. In summary, some aspects to be considered to safely use wastewater in the Cuban agriculture, which are also necessary to implement national health and agricultural surveillance programs centered on microbiological aspects, were listed