| Natural-light labeling of tomatoes does not facilitate growth or penetration of Salmonella into the fruit. | |
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MedLine Citation:
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PMID: 21219748 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The survival-growth capacity of Salmonella populations on tomato epidermis labeled by a natural-light labeling system was investigated after persistent fears of such marks serving as possible entryways for the pathogenic organisms, alone and in the presence of Pectobacterium carotovorum subsp. carotovorum, a soft-rot organism. Different treatments involving natural-light labeling, fruit waxing, and a five-strain cocktail of Salmonella were applied to mature green tomato surfaces in different sequences prior to storage at 4, 12, or 25°C. Fruit was sampled every 3 days, and Salmonella was enumerated from all treatments and unlabeled fruit, which served as controls. There were no significant differences between treatments or between treatments and controls throughout. The results indicate that the cuticle and epidermal interruptions caused by natural-light labeling do not facilitate the penetration and colonization of the tomato pericarp. In a separate set of experiments, the capacity of Salmonella to penetrate tomato in the presence of a potential synergism with P. carotovorum subsp. carotovorum was investigated. The addition of P. carotovorum at higher, lower, or equal population densities to Salmonella did not significantly alter the behavior of Salmonella on tomatoes stored at 25°C, regardless of natural-light labeling. The inability of P. carotovorum and Salmonella to colonize natural-light-etched surfaces of tomato fruit indicates that the use of this technology does not adversely compromise the surface of tomatoes. |
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Authors:
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Michelle D Danyluk; Lenin O Interiano Villeda; Loretta M Friedrich; Keith R Schneider; Ed Etxeberria |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of food protection Volume: 73 ISSN: 1944-9097 ISO Abbreviation: J. Food Prot. Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2011-01-11 Completed Date: 2011-01-31 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7703944 Medline TA: J Food Prot Country: United States |
Other Details:
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Languages: eng Pagination: 2276-80 Citation Subset: IM |
Affiliation:
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Citrus Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, 700 Experiment Station Road, Lake Alfred, Florida 33850, USA. mddanyluk@ufl.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Antibiosis Colony Count, Microbial Food Microbiology Food Preservation / methods* Humans Light* Lycopersicon esculentum / microbiology* Pectobacterium carotovorum / physiology* Population Dynamics Salmonella / growth & development* Salmonella Food Poisoning / prevention & control Temperature |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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