Prevalence and subtyping of Cronobacter species in goat milk powder factories in Shaanxi province, China
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Le résumé fourni par la source
Cronobacter spp. are opportunistic pathogens that can cause serious diseases in neonates and infants via consumption of contaminated milk powder. To determine Cronobacter spp. contamination status, 632 samples, including 15 evaporated milk, 45 intermediate powder, 150 finished products, and 422 manufacturing environment samples, were collected from 3 goat milk powder factories in Shaanxi province, China, from July 2013 to April 2014. The recovered Cronobacter isolates were subtyped using pulsed-field gel electrophoresis to trace the potential dissemination routes during the whole production processing. Sixty-seven Cronobacter spp. isolates were recovered. The prevalence rates in manufacturing environment, intermediate powder, and finished products were 92.5, 6.0, and 1.5%, respectively. The predominant species were Cronobacter sakazakii (88.1%); no Cronobacter turicensis, Cronobacter condimenti, or Cronobacter dublinensis were detected. Sixty-seven Cronobacter isolates were grouped in 26 clusters by pulsed-field gel electrophoresis, and substantial genetic similarity was observed among isolates from different sampling sites in the same factory. Isolates in the main clusters were commonly recovered from intermediate powder, floor powder, and shoes. These data indicated that air, powder, and personnel movement were potential routes for Cronobacter dissemination, and manufacturing environment is the key control point for Cronobacter contamination.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Prevalence and subtyping of Cronobacter species in goat milk powder factories in Shaanxi province, China
- Date Crossref
- 01/11/2015
- Éditeur
- American Dairy Science Association
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Northwest A&F University pays non établi dans la noticeUniversité ou école supérieure
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Tianshui Normal University pays non établi dans la noticeUniversité ou école supérieure
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Henan Province Quality and Technical Supervision Bureau pays non établi dans la noticeInstitution
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North West Agriculture and Forestry University pays non établi dans la noticeUniversité ou école supérieure
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College of Food Science and Engineering pays non établi dans la noticeUniversité ou école supérieure
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College of Bioengineering and Biotechnology pays non établi dans la noticeUniversité ou école supérieure
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College of Animal Science Technology pays non établi dans la noticeUniversité ou école supérieure
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Xianyang Bureau of Quality and Technical Supervision pays non établi dans la noticeInstitution
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Institution of Inspection of Yangling Bureau of Quality and Supervision pays non établi dans la noticeStructure de recherche
Northwest A&F University, Tianshui Normal University et Henan Province Quality and Technical Supervision Bureau, avec 6 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.