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Theses/Dissertations

2013

Graduate Theses and Dissertations

Animal Sciences

Listeria monocytogenes

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Full-Text Articles in Life Sciences

Investigating The Control Of Listeria Monocytogenes On Uncured, No-Nitrate-Or-Nitrite-Added Ready-To-Eat Meat Products Using Natural Antimicrobial Ingredients And Post-Lethality Interventions, Nicolas Armando Lavieri Jan 2013

Investigating The Control Of Listeria Monocytogenes On Uncured, No-Nitrate-Or-Nitrite-Added Ready-To-Eat Meat Products Using Natural Antimicrobial Ingredients And Post-Lethality Interventions, Nicolas Armando Lavieri

Graduate Theses and Dissertations

Restrictions on the use of conventional antimicrobials, combined with the restricted use of nitrite and nitrate, have generated concerns over the perceived risk for foodborne illness associated with natural and organic RTE meat and poultry products. Thus, the use of natural antimicrobial interventions alone and in combination with post-lethality interventions as a means to inhibit the recovery and growth of Listeria monocytogenes in naturally cured RTE processed meats was the focus of the work reported in this dissertation. Natural antimicrobials evaluated were cranberry powder, vinegar, and vinegar and lemon juice concentrate. Post-lethality interventions studied were high hydrostatic pressure, lauric arginate ...


The Effect Of Ph And Nitrite Concentration On The Antimicrobial Impact Of Celery Juice Compared With Sodium Nitrite On Listeria Monocytogenes, Ashley Horsch Jan 2013

The Effect Of Ph And Nitrite Concentration On The Antimicrobial Impact Of Celery Juice Compared With Sodium Nitrite On Listeria Monocytogenes, Ashley Horsch

Graduate Theses and Dissertations

Increasing consumer concerns of harmful preservatives have intensified consumers' demand for natural and organic alternatives. In response to this demand, uncured or no-nitrate-or-nitrite-added meat products which utilize celery juice concentrates as an alternative to sodium nitrite, have emerged on the market to replace conventional nitrite sources. The objective of this study was to evaluate the effect of celery juice pH for the impact of nitrite on L. monocytogenes growth. In addition, equal concentrations of nitrite in celery juice and conventional nitrite were evaluated to determine the impact of nitrite concentration from these sources on L. monocytogenes growth. These objectives were ...