| Inactivation of Listeria innocua on frankfurters by ultraviolet light and flash pasteurization. | |
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MedLine Citation:
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PMID: 19397730 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Listeria monocytogenes, a psychrotrophic foodborne pathogen, is a recurring postprocess contaminant on ready-to-eat meat (RTE) products including frankfurters. Flash (Steam) Pasteurization (FP) and ultraviolet light (254 nm-UVC) has been shown to reduce levels of L. monocytogenes and L. innocua on frankfurters. In this study, the use of UVC light followed by FP to inactivate L. innocua, a nonpathogenic surrogate for L.monocytogenes, on frankfurters that contained sodium diacetate and potassium lactate (SDA/PL) in a pilot-plant setting was investigated. Application of UVC (1.0 J/cm2), followed by FP (0.75 s steam/121 degrees C) resulted in inactivation of 3.19 log L. innocua, while application of UVC (4.0 J/cm2), followed by FP (3 s steam/121 degrees C) resulted in inactivation of 3.89 log of L. innocua. A refrigerated storage study (8 degrees C) of frankfurters that contained SDA/PL that were treated with UVC followed by FP revealed the growth of L. innocua was inhibited for approximately 8 wk following application of the interventions. The use of UVC in combination with FP had little effect on frankfurter color and texture. The combination of UVC, FP, and SDA/PL was found to be an effective hurdle process for decontamination of frankfurter surfaces. |
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Authors:
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C H Sommers; D J Geveke; S Pulsfus; B Lemmenes |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of food science Volume: 74 ISSN: 1750-3841 ISO Abbreviation: J. Food Sci. Publication Date: 2009 Apr |
Date Detail:
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Created Date: 2009-04-28 Completed Date: 2009-08-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0014052 Medline TA: J Food Sci Country: United States |
Other Details:
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Languages: eng Pagination: M138-41 Citation Subset: IM |
Affiliation:
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Eastern Regional Research Center, Agricultural Research Service, U.S. Dept. of Agriculture, 600 East Mermaid Lane, Wyndmoor, PA 19038, USA. christopher.sommers@ars.usda.gov |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cold Temperature Food Microbiology* Food Preservation / methods* Lactates / analysis Listeria / drug effects, growth & development*, radiation effects Meat Products / analysis, microbiology* Sodium Acetate / analysis Steam* Time Factors Ultraviolet Rays* |
| Chemical | |
Reg. No./Substance:
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0/Lactates; 0/Steam; 6131-90-4/Sodium Acetate |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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