Development of a PCR-based lateral flow strip assay for the simple, rapid, and accurate detection of pork in meat and meat products.
Food Chem
; 318: 126541, 2020 Jul 15.
Article
em En
| MEDLINE
| ID: mdl-32151928
ABSTRACT
In recent years, adulteration of meat and meat products has become a major food safety issue. PCR and real-time PCR technologies are mainstream methods used to identify animal-derived components. However, these technologies rely highly on costly equipment and professional technicians; they are therefore difficult to use in resource-limited settings. In this study, a novel, highly sensitive molecular assay, Pig-PCR-Strip (Pig specific polymerase chain reaction-Lateral flow strip), was developed for rapid detection of pig and swine-derived components. The assay is based on PCR amplification, hybridization of the PCR product to the probe, followed by detection using a strip format. Using this format, the PCR product can be detected by the naked eye within 3 min, and provides a basis for the migration of species-specific detection to a point-of-care (POC) microfluidic format. The Pig-PCR-Strip can detect pork components at a concentration of 0.01% in adulterated meat, and the limit of detection is up to 10 fg of target DNA. The assay was specific to pork and did not cross-react with other non-target species. It also can be used for commercial samples and complex food samples. It is a promising new tool for detection of pig-derived meat and can be rapidly modified for identifying other species. It could be widely used for solving problems related to meat quality assurance, species authentication, and traceability.
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Base de dados:
MEDLINE
Assunto principal:
Contaminação de Alimentos
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Reação em Cadeia da Polimerase
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Análise de Alimentos
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Carne de Porco
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Produtos da Carne
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article