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RESEARCH ARTICLE (Open Access)

Human pathogenic bacteria on fresh produce and their control using bacteriophage treatment: an E. coli example from the Sunshine Coast region

Meg Allom A , Harrchun Panchalingam A , M. Katouli A and D. İpek Kurtböke A *
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A School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore BC, Qld 4558, Australia.




Meg Allom is a UniSC recent graduate with first class Honours. She also holds a BSc in the Science Program of the UniSC. Over the past 2 years she conducted research with Dr İpek Kurtböke related to the application of various actinophages. She has worked with foodborne pathogens and microbial contaminants in her studies and has a keen interest in food safety.



Harrchun Panchalingam has recently completed his PhD under Dr Kurtböke’s supervision. He is an international student from Sri Lanka and holds BSc from Monash University Malaysia and MSc from University of Peradeniya, Sri Lanka. His PhD project involved assessment of Trichoderma and actinomycetes spp. to control Pyrrhoderma noxium infections of heritage fig trees in Brisbane. Currently he is working as research assistant at (UniSC). His research interests are biological control of plant diseases, development of biofertilisers and bioremediation of hydrocarbons.



Associate Professor Mohammad Katouli obtained his PhD in 1980 from University of Ulster in UK. He then joined the Research and Development Department of DP Pharmaceuticals. In 1985, he took the position of the Head of Microbiology Department at the Pasteur Institute in Tehran. Between 1988 and 1998, he worked as a senior research fellow at the Microbiology and Tumour Biology Centre of the Karolinska Institute, Stockholm, Sweden. In 1998, he took a teaching and research position at University of the Sunshine Coast. His current interest is gut microbiota and the role of E. coli in pathogenesis of IBD.



D. İpek Kurtböke is currently a senior lecturer at the University of the Sunshine Coast (UniSC) in Australia and one of the members of the Genecology Research Centre of the UniSC, conducting research in applied, industrial and environmental microbiology. She is an internationally reputed actinomycetologist and she has been in the field of biodiscovery since 1982 conducting research into discovery of novel and potent therapeutic compounds produced by actinomycetes in Turkey, Italy, the UK, and Australia with leading pharmaceutical companies. She has been an Executive Board member of the World Federation of Culture Collections (WFCC) since 2000, currently serving her second term as the President of the Federation. She is also one of the members of the International Committee on Taxonomy of Viruses (ICTV)’s, Bacterial Viruses Subcommittee. She has editorial duties in different journals including Marine Drugs, Diversity and Frontiers Marine Science/Marine Biotechnology.

* Correspondence to: ikurtbok@usc.edu.au

Microbiology Australia 43(4) 194-198 https://doi.org/10.1071/MA22059
Submitted: 6 October 2022  Accepted: 22 November 2022   Published: 13 December 2022

© 2022 The Author(s) (or their employer(s)). Published by CSIRO Publishing on behalf of the ASM. This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND)

Abstract

Consumers are placing increasing importance on an environmentally friendly way of food production and are turning to organically produced fruit and vegetables. Organic farming rejects the use of synthetic pesticides or fertilisers, growth promoters, antibiotics, or transgenic organisms. However, the use of manures that replace synthetic fertilisers is associated with a risk of contamination of produce with pathogenic microorganisms. There have been a considerable number of foodborne outbreaks associated with fresh produce, resulting in hospitalisations and deaths worldwide. Accordingly, bacteriophages have gained much attention as a safe, effective, and organic method for removal of pathogenic microorganisms from fresh produce. Bacteriophage treatments for control of pathogenic E. coli and other pathogens on fresh produce have several advantages over currently used treatments, including their host specificity, safety, low impact on sensory qualities of fresh produce, and their ease of isolation over other antimicrobial agents.

Keywords: antibiotic resistant pathogenic bacteria, bacteriophages, bacteriophage biocontrol, E. coli, E. coli phage, food borne pathogens, food security, fresh produce, phage inactivation.


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