ResumoOs micro-organismos indicadores podem ser utilizados como método de avaliação da qualidade higiênico-sanitária de produtos alimentícios, indicando a adequação de condições de obtenção, processamento e armazenamento dos alimentos. O presente estudo buscou avaliar a contaminação superficial de carcaças bovinas advindas de um matadouro-frigorífico sob Inspeção Federal no oeste do Paraná pela contagem de mesófilos aeróbios (AM), enterobactérias (EB), coliformes a 35°C (CT) e E. coli (EC). Foram avaliadas amostras de superfície de 25 carcaças em quatro pontos distintos e em quatro etapas do abate, por método não destrutivo. As amostras foram submetidas a diluições decimais seriadas e incubadas em placas de Petrifilm™ conforme recomendações do fabricante. Foram observadas médias de 1,46; 0,3; 0,23 e 0,21 log UFC/cm² para AM, EB, CT e EC, respectivamente. Os valores encontrados situaram-se em conformidade com os preconizados pela decisão 471/2001 da União Europeia e de vários outros autores pesquisados, indicando a eficiência higiênica no processo da indústria. Palavras-chave: Micro-organismos, indicadores, processamento, contaminação AbstractIndicators microorganisms can be used as a method for evaluating the sanitary quality of food products, indicating the suitability of conditions for obtaining, processing and storage of food. This study sought to evaluate surface contamination of cattle carcasses that come from a slaughter plant under Federal Inspection in western Paraná by mesophilic bacteria (AM), Enterobacteriaceae (EB), coliform at 35°C (TC) and E. coli (EC). Surface samples were collected from 25 carcasses, each at 4 different points of slaughter, for non-destructive method. The samples were diluted in decimal scale and incubated in Petrifilm ® plates. Were found averages of 1.46; 0.3; 0.23 and 0.21 log CFU / cm ² for AM, EB, CT and EC, respectively. The values to be found were well below those recommended by the decision 471/2001 of the European Union and several other authors surveyed, indicating the effectiveness of the hygienic process industry.
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