Evaluation of post-contamination survival and persistence of applied attenuated E. coli O157:H7 and naturally-contaminating E. coli O157:H7 on spinach under field conditions and following postharvest handling.
Agriculture
California
Colony Count, Microbial
Consumer Product Safety
Escherichia coli O157
/ drug effects
Food Contamination
/ analysis
Food Handling
Food Microbiology
Meteorological Concepts
Microbial Viability
Plant Leaves
/ microbiology
Silver Nitrate
/ antagonists & inhibitors
Soil Microbiology
Spinacia oleracea
/ microbiology
E. coli O157:H7
Molecular detection
Natural contamination
Pathogen distribution
Produce safety
Spinach
Journal
Food microbiology
ISSN: 1095-9998
Titre abrégé: Food Microbiol
Pays: England
ID NLM: 8601127
Informations de publication
Date de publication:
Feb 2019
Feb 2019
Historique:
received:
15
05
2018
revised:
23
08
2018
accepted:
23
08
2018
entrez:
10
10
2018
pubmed:
10
10
2018
medline:
17
1
2019
Statut:
ppublish
Résumé
This study determined the variability in population uniformity of an applied mixture of attenuated E. coli O157:H7 (attEcO157) on spinach leaves as impacted by sampling mass and detection technique over spatial and temporal conditions. Opportunistically, the survival and distribution of naturally contaminating pathogenic E. coli O157:H7 (EcO157), in a single packaged lot following commercial postharvest handling and washing, was also evaluated. From the main study outcomes, differences in the applied inoculum dose of 100-fold, resulted in indistinguishable population densities of approximately Log 1.1 CFU g
Identifiants
pubmed: 30297048
pii: S0740-0020(18)30337-X
doi: 10.1016/j.fm.2018.08.013
pii:
doi:
Substances chimiques
Silver Nitrate
95IT3W8JZE
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
173-184Informations de copyright
Copyright © 2018. Published by Elsevier Ltd.