Next Article in Journal
Breads Fortified with Freeze-Dried Vegetables: Quality and Nutritional Attributes. Part II: Breads Not Containing Oil as an Ingredient
Next Article in Special Issue
Fermentation-Assisted Extraction of Isothiocyanates from Brassica Vegetable Using Box-Behnken Experimental Design
Previous Article in Journal
Correlations between Polyacetylene Concentrations in Carrot (Daucus carota L.) and Various Soil Parameters
Previous Article in Special Issue
Applying Least Absolute Shrinkage Selection Operator and Akaike Information Criterion Analysis to Find the Best Multiple Linear Regression Models between Climate Indices and Components of Cow’s Milk
Article Menu

Export Article

Open AccessArticle
Foods 2016, 5(3), 61; doi:10.3390/foods5030061

A Computational Study of Amensalistic Control of Listeria monocytogenes by Lactococcus lactis under Nutrient Rich Conditions in a Chemostat Setting

1
Faculty of Applied Science and Technology, Sheridan College, 7899 McLaughlin Rd, Brampton, ON, L6Y 5H9, Canada
2
Department of Mathematics and Statistics, University of Guelph, 50 Stone Rd E, Guelph, ON, N1G 2W1, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Wijitha Senadeera
Received: 29 May 2016 / Revised: 24 August 2016 / Accepted: 29 August 2016 / Published: 9 September 2016
(This article belongs to the Special Issue Food Modelling)
View Full-Text   |   Download PDF [965 KB, uploaded 9 September 2016]   |  

Abstract

We study a previously introduced mathematical model of amensalistic control of the foodborne pathogen Listeria monocytogenes by the generally regarded as safe lactic acid bacteria Lactococcus lactis in a chemostat setting under nutrient rich growth conditions. The control agent produces lactic acids and thus affects pH in the environment such that it becomes detrimental to the pathogen while it is much more tolerant to these self-inflicted environmental changes itself. The mathematical model consists of five nonlinear ordinary differential equations for both bacterial species, the concentration of lactic acids, the pH and malate. The model is algebraically too involved to allow a comprehensive, rigorous qualitative analysis. Therefore, we conduct a computational study. Our results imply that depending on the growth characteristics of the medium in which the bacteria are cultured, the pathogen can survive in an intermediate flow regime but will be eradicated for slower flow rates and washed out for higher flow rates. View Full-Text
Keywords: Listeria monocytogenes; Lactococus lactis; mathematical model; computer simulation; biocontrol Listeria monocytogenes; Lactococus lactis; mathematical model; computer simulation; biocontrol
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Khassehkhan, H.; Eberl, H.J. A Computational Study of Amensalistic Control of Listeria monocytogenes by Lactococcus lactis under Nutrient Rich Conditions in a Chemostat Setting. Foods 2016, 5, 61.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Foods EISSN 2304-8158 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top