XXXIII international congress on microbial ecology and disease , 2010-09-06

Title : ( Modeling the influence of bunium persicum boiss essential oil, pH and temperature on growth of listeria monocytogenes )

Authors: Saeid Khanzadi , Abdollah Jamshidi , Hesam A Seifi , zahra noori ,

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Listeriosis is known as a major food-borne disease throughout the world caused by Listeria monocytogenes. Different factors can affect the growth of food borne microbial pathogens. Knowing the precise boundary for the growth-no growth interface of L. Monocytogenes and also determining the period of time needed for bacterial growth initiation is necessary for food safety risk assessment. This study was designed to examine the combined effects of different levels of Bunium persicum essential oil (0%, 0.08%, 0.16%, 0.24%), temperature(35 ˚C, 25 ˚C, 4 ˚C), pH(5, 6, 7) and inoculum (103, 105 cfu ml -1) on the growth of L. Monocytogenes in brain heart infusion broth. Growth was monitored by visible turbidity over a 30 days period. The measured data points showed significant effects for selected parameters on growth of L. Monocytogenes (P<0.05). Stepwise Multiple Regression Program was used to predict the growth initiation. For obtaining a boundary model the logistic Regression Program was used. The models adequately predicted the growth initiation and growth inhibition of L. Monocytogenes

Keywords

, Listeria Monocytogenes , predictive model, food
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@inproceedings{paperid:1019147,
author = {Khanzadi, Saeid and Jamshidi, Abdollah and Seifi, Hesam A and Noori, Zahra},
title = {Modeling the influence of bunium persicum boiss essential oil, pH and temperature on growth of listeria monocytogenes},
booktitle = {XXXIII international congress on microbial ecology and disease},
year = {2010},
location = {آتن-کرت},
keywords = {Listeria Monocytogenes ; predictive model; food safety},
}

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%0 Conference Proceedings
%T Modeling the influence of bunium persicum boiss essential oil, pH and temperature on growth of listeria monocytogenes
%A Khanzadi, Saeid
%A Jamshidi, Abdollah
%A Seifi, Hesam A
%A Noori, Zahra
%J XXXIII international congress on microbial ecology and disease
%D 2010

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