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Investigating the control of Listeria monocytogenes on a ready-to-eat ham product using natural antimicrobial ingredients and postlethality interventions.
- Source :
-
Foodborne pathogens and disease [Foodborne Pathog Dis] 2014 Jun; Vol. 11 (6), pp. 462-7. Date of Electronic Publication: 2014 May 13. - Publication Year :
- 2014
-
Abstract
- Ready-to-eat (RTE) meat and poultry products manufactured with natural or organic methods are at greater risk for Listeria monocytogenes growth, if contaminated, than their conventional counterparts due to the required absence of preservatives and antimicrobials. Thus, the objective of this study was to investigate the use of commercially available natural antimicrobials and postlethality interventions in the control of L. monocytogenes growth and recovery on a RTE ham product. Antimicrobials evaluated were cranberry powder (90MX), vinegar (DV), and vinegar/lemon juice concentrate (LV1X). Postlethality interventions studied were high hydrostatic pressure at 400 (HHP400) or 600 (HHP600) MPa, lauric arginate (LAE), octanoic acid (OA), and postpackaging thermal treatment (PPTT). Parameters evaluated through 98 days of storage at 4±1°C were residual nitrite concentrations, pH, a(w), and viable L. monocytogenes on modified Oxford (MOX) media. On day 1, OA, 90MX, DV, and LV1X yielded lower residual nitrite concentrations than the control, whereas HHP400, HHP600, and LAE did not. LAE, HHP400, and OA reduced L. monocytogenes population compared to the control after 1 day of storage by 2.38, 2.21, and 1.73 log10 colony-forming units per gram, respectively. PPTT did not achieve a significant reduction in L. monocytogenes populations. L. monocytogenes recovered and grew in all postlethality intervention treatments except HHP600. 90MX did not inhibit the growth of L. monocytogenes, while DV and LV1X did. Results of this study demonstrate the bactericidal properties of HHP, OA, and LAE and the bacteriostatic potential of natural antimicrobial ingredients such as DV and LV1X against L. monocytogenes.
- Subjects :
- Acetic Acid chemistry
Animals
Arginine analogs & derivatives
Arginine chemistry
Caprylates chemistry
Citrus chemistry
Fast Foods analysis
Food Contamination
Food Inspection
Food, Organic analysis
Food, Organic economics
Fruit chemistry
Hot Temperature
Hydrostatic Pressure
Iowa
Listeria monocytogenes growth & development
Meat analysis
Microbial Viability
Sus scrofa
Vaccinium macrocarpon chemistry
Anti-Infective Agents chemistry
Fast Foods microbiology
Food Preservation methods
Food, Organic microbiology
Listeria monocytogenes isolation & purification
Meat microbiology
Subjects
Details
- Language :
- English
- ISSN :
- 1556-7125
- Volume :
- 11
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Foodborne pathogens and disease
- Publication Type :
- Academic Journal
- Accession number :
- 24824223
- Full Text :
- https://doi.org/10.1089/fpd.2013.1702