Prevalence Analysis and Molecular Characterization of Salmonella at Different Processing Steps in Broiler Slaughter Plants in South Korea.
J Food Sci
; 80(12): M2822-6, 2015 Dec.
Article
em En
| MEDLINE
| ID: mdl-26523619
ABSTRACT
In this study, changes in the prevalence of Salmonella during the processing of broiler chicken carcasses were investigated. A total of 1040 fecal swabs and chicken carcasses samples were collected from 2 processing plants at the 4 stages of broiler processing, which included live birds in slaughter line, postevisceration/prewashing, postwashing/prechilling, and postchilling, respectively. The intraspecific biodiversity of the Salmonella isolates was determined using a DiversiLab automated repetitive sequence-based PCR (rep-PCR) system. In both plants, the prevalence of Salmonella increased considerably after evisceration (from 4.6% to 30.8%, P < 0.05) and decreased after washing (from 30.8% to 25.4%, P < 0.05). However, the chilling step had little effect on Salmonella prevalence (from 25.4% to 22.7%, P > 0.05). The most frequent Salmonella serovar in plant A was Infantis (35.8%), followed by Enteritidis (26.2%) and Montevideo (15.0%), while Montevideo (43.6%) and Enteritidis (35.9%) were most prevalent in plant B. A difference in the rep-PCR banding pattern was found to be related to the processing plant origin and serovar rather than sampling point or sampling day, although there were some exceptional strains.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Salmonella
/
Matadouros
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Manipulação de Alimentos
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Microbiologia de Alimentos
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Carne
Tipo de estudo:
Prevalence_studies
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Risk_factors_studies
Limite:
Animals
/
Humans
País/Região como assunto:
Asia
Idioma:
En
Revista:
J Food Sci
Ano de publicação:
2015
Tipo de documento:
Article