| Inhibition of Listeria monocytogenes in cooked ham through active packaging with natural antimicrobials and high-pressure processing. | |
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MedLine Citation:
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PMID: 18044426 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Enterocins A and B and sakacin K at 200 and 2,000 activity units (AU)/cm2, nisin at 200 AU/cm2, 1.8% potassium lactate, and a combination of 200 AU/cm2 of nisin and 1.8% lactate were incorporated into interleavers, and their effectiveness against Listeria monocytogenes spiked in sliced, cooked ham was evaluated. Antimicrobial-packaged cooked ham was then subjected to high-pressure processing (HPP) at 400 MPa. In nonpressurized samples, nisin plus lactate-containing interleavers were the most effective, inhibiting L. monocytogenes growth for 30 days at 6 degrees C, with counts that were 1.9 log CFU/g lower than in the control after 3 months. In the other antimicrobial-containing interleavers, L. monocytogenes did not exhibit a lag phase and progressively grew to levels of about 8 log CFU/g. HPP of actively packaged ham slices reduced Listeria populations about 4 log CFU/g in all batches containing bacteriocins (i.e., nisin, sakacin, and enterocins). At the end of storage, L. monocytogenes levels in the bacteriocin-containing batches were the lowest, with counts below 1.51 log CFU/g. In contrast, HPP moderately reduced L. monocytogenes counts in the control and lactate batches, with populations gradually increasing to about 6.5 log CFU/g at the end of storage. |
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Authors:
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Anna Jofré; Margarita Garriga; Teresa Aymerich |
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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: 70 ISSN: 0362-028X ISO Abbreviation: J. Food Prot. Publication Date: 2007 Nov |
Date Detail:
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Created Date: 2007-11-29 Completed Date: 2007-12-26 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: 2498-502 Citation Subset: IM |
Affiliation:
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IRTA, Finca Camps i Armet, E-17121 Monells, Girona, Spain. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Anti-Bacterial Agents / pharmacology* Bacteriocins / pharmacology Bridged Compounds / pharmacology Colony Count, Microbial Dose-Response Relationship, Drug Food Contamination / analysis, prevention & control Food Handling / methods* Food Microbiology Food Packaging / methods* Food Preservation / methods* Lactates / pharmacology Listeria monocytogenes / drug effects, growth & development* Meat Products / microbiology* Nisin / pharmacology Pressure Swine |
| Chemical | |
Reg. No./Substance:
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0/Anti-Bacterial Agents; 0/Bacteriocins; 0/Bridged Compounds; 0/Lactates; 1414-45-5/Nisin; 59678-46-5/enterocin |
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