• Libraries
    • Log in to:
    View Item 
    •   MSpace Home
    • Faculty of Graduate Studies (Electronic Theses and Practica)
    • FGS - Electronic Theses and Practica
    • View Item
    •   MSpace Home
    • Faculty of Graduate Studies (Electronic Theses and Practica)
    • FGS - Electronic Theses and Practica
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    The impact of modified atmosphere packaging and irradiation on the survival and pathogenicity of Listeria monocytogenes and the design of a mathematical model

    Thumbnail
    View/Open
    MQ32078.pdf (6.992Mb)
    Date
    1998-04-01
    Author
    Chung-Lewis, Mei
    Metadata
    Show full item record
    Abstract
    The survival of Listeria monocytogenes in packaged, ground containing either CO$\sb2$ (15% or 30%) or air was examined during storage at 5 or 11$\sp\circ$C. Survival was evaluated when electron beam radiation (1.75 kGy) was used as part of a combination treatment. The mathematical model $\rm S\over{S\sb0}$ = exp ($\mu\sb0\sp*$ (1 $-$ exp ($-$Dt)), is derived from the experimental data generated by this study. Fat (protein) content, storage temperature, and atmospheric conditions were the parameters which were applied to derive this equation. The growth ratio can be used to predict the effectiveness of these parameters on the survival of the organism. For example, this equation demonstrates that the number of listeriae increased as the level of CO$\sb2$ decreased in both 5 and 11$\sp\circ$C. By manipulating the proportionality constant, $\mu\sb0\sp*$, and using the exponential data points, a best fit line can be produced to the one that is very similar to the growth curve of an organism The goodness of fit of this line can demonstrate the effect of various treatment protocols to the survival of the organism. (Abstract shortened by UMI.)
    URI
    http://hdl.handle.net/1993/1258
    Collections
    • FGS - Electronic Theses and Practica [25071]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of MSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Login

    Statistics

    View Usage Statistics

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV