validação de métodos alternativos qualitativos na detecção de patógenos alimentares validation of qualitative alternative methods in the detection of food-born pathogens
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2006
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Abstract
As Doenças de Origem Alimentar (DOA) são um perigo de grande relevância para a saúde humana e para a economia dos indivíduos, famílias e nações. O risco de disseminação de microrganismos patogênicos vem crescendo continuamente, e programas de controle de qualidade microbiológica são empregados em toda a cadeia de produção alimentar a fim de minimizar o risco de infecção e/ou intoxicação. A utilização de métodos de detecção alternativos de microrganismos é uma das ferramentas que podem ser utilizadas para garantir a segurança microbiológica dos produtos. Contudo, para que a metodologia utilizada forneça resultados confiáveis é necessário que ela seja validada. A validação deve garantir, por meio de estudos experimentais, que o método atenda às exigências das aplicações analíticas, assegurando a confiabilidade dos resultados, devendo apresentar níveis adequados de acurácia, precisão, limite de detecção, robustez, repetitividade, reprodutibilidade, especificidade, linearidade e exatidão. Embora existam diversos guias descrevendo a validação de métodos analíticos, comparativamente, pouco se tem dito a respeito da validação de métodos microbiológicos e, menos ainda, de métodos moleculares. O objetivo deste trabalho é fazer uma revisão dos parâmetros necessários para validação de métodos alternativos qualitativos na detecção de patógenos alimentares.
Food-Born Diseases (FBD) are a considered an important hazard for human health and the economy on individual, family and national level. The risk of dissemination of pathogens increases continuously and microbiological quality control programs are employed in the entire food chain in order to minimize the risk of infection and/or intoxication. The use of alternative methods for the detection of microorganisms is one of the tools for granting the microbiological safety of the products. For obtaining reliable results however the method needs to be validated. The purpose of the validation is to ensure through experimental studies that the method is meeting the requirements of analytical applications, ensuring the reliability of results and adequate levels of accuracy, precision, detection limit, solidity, repeatability, reproducibility, specificity, linearity and exactness. Although there are some guides describing the validation of analytical methods, comparatively little has been said regarding validation of microbiological methods and even less with respect to molecular methods. The aim of this work is to review the parameters necessary for validating qualitative alternative methods in the detection of food-born diseases.
Food-Born Diseases (FBD) are a considered an important hazard for human health and the economy on individual, family and national level. The risk of dissemination of pathogens increases continuously and microbiological quality control programs are employed in the entire food chain in order to minimize the risk of infection and/or intoxication. The use of alternative methods for the detection of microorganisms is one of the tools for granting the microbiological safety of the products. For obtaining reliable results however the method needs to be validated. The purpose of the validation is to ensure through experimental studies that the method is meeting the requirements of analytical applications, ensuring the reliability of results and adequate levels of accuracy, precision, detection limit, solidity, repeatability, reproducibility, specificity, linearity and exactness. Although there are some guides describing the validation of analytical methods, comparatively little has been said regarding validation of microbiological methods and even less with respect to molecular methods. The aim of this work is to review the parameters necessary for validating qualitative alternative methods in the detection of food-born diseases.
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| Authors | ;Elaine Ibrahim de Freitas;Anderson Almeida de Lemos;Victor Augustus Marin |
| Journal | journal of physical activity & health |
| Year | 2006 |
| DOI |
10.1590/S1413-81232006000400028
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