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Novel biocontrol methods for Listeria monocytogenes biofilms in food production facilities


Gray, JA and Chandry, PS and Kaur, M and Kocharunchitt, C and Bowman, JP and Fox, EM, Novel biocontrol methods for Listeria monocytogenes biofilms in food production facilities, Frontiers in Microbiology, 9 Article 605. ISSN 1664-302X (2018) [Refereed Article]


Copyright Statement

Copyright 2018 Gray, Chandry, Kaur, Kocharunchitt, Bowman and Fox. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

DOI: doi:10.3389/fmicb.2018.00605


High mortality and hospitalization rates have seen Listeria monocytogenes as a foodborne pathogen of public health importance for many years and of particular concern for high-risk population groups. Food manufactures face an ongoing challenge in preventing the entry of L. monocytogenes into food production environments (FPEs) due to its ubiquitous nature. In addition to this, the capacity of L. monocytogenes strains to colonize FPEs can lead to repeated identification of L. monocytogenes in FPE surveillance. The contamination of food products requiring product recall presents large economic burden to industry and is further exacerbated by damage to the brand. Poor equipment design, facility layout, and worn or damaged equipment can result in Listeria hotspots and biofilms where traditional cleaning and disinfecting procedures may be inadequate. Novel biocontrol methods may offer FPEs effective means to help improve control of L. monocytogenes and decrease cross contamination of food. Bacteriophages have been used as a medical treatment for many years for their ability to infect and lyse specific bacteria. Endolysins, the hydrolytic enzymes of bacteriophages responsible for breaking the cell wall of Gram-positive bacteria, are being explored as a biocontrol method for food preservation and in nanotechnology and medical applications. Antibacterial proteins known as bacteriocins have been used as alternatives to antibiotics for biopreservation and food product shelf life extension. Essential oils are natural antimicrobials formed by plants and have been used as food additives and preservatives for many years and more recently as a method to prevent food spoilage by microorganisms. Competitive exclusion occurs naturally among bacteria in the environment. However, intentionally selecting and applying bacteria to effect competitive exclusion of food borne pathogens has potential as a biocontrol application. This review discusses these novel biocontrol methods and their use in food safety and prevention of spoilage, and examines their potential to control L. monocytogenes within biofilms in food production facilities.

Item Details

Item Type:Refereed Article
Keywords:Listeria monocytogenes, food safety sanitation, disinfection, bacteriophages, biocontrol, biofilms, competitive exclusion, endolysins, essential oils
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Food sciences
Research Field:Food packaging, preservation and processing
Objective Division:Health
Objective Group:Public health (excl. specific population health)
Objective Field:Food safety
UTAS Author:Gray, JA (Mr Jamie Gray)
UTAS Author:Kaur, M (Dr Mandeep Kaur)
UTAS Author:Kocharunchitt, C (Dr Jay Kocharunchitt)
UTAS Author:Bowman, JP (Associate Professor John Bowman)
ID Code:125828
Year Published:2018
Web of Science® Times Cited:66
Deposited By:Agriculture and Food Systems
Deposited On:2018-05-09
Last Modified:2019-03-05
Downloads:167 View Download Statistics

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