Project 4: Development of pre-harvest applications of electrolysed water and other chemical interventions in suppressing food-borne pathogens on leafy green vegetables
       
     
Objectives
       
     
Expected Outcomes
       
     
Project personnel
       
     
Partner organisations
       
     
Project 4: Development of pre-harvest applications of electrolysed water and other chemical interventions in suppressing food-borne pathogens on leafy green vegetables
       
     
Project 4: Development of pre-harvest applications of electrolysed water and other chemical interventions in suppressing food-borne pathogens on leafy green vegetables

Aim

To optimise the application of electrolysed oxidising (EO) water and other chemical sanitisers (e.g. TSUNAMI on farm, Nylate powder) using commercial LGV cultivars (e.g. mizuna, rocket, red chard) in order to develop pre-harvest control strategies against selected foodborne pathogens (e.g. Listeria innocua, E. coli M23 and Pseudomonas fluorescens).  

Objectives
       
     
Objectives

Determining optimum temperature, solar insolation, plant health status, plant density and phenology for maximum effectiveness of treatment under controlled conditions.

Establishing minimum disinfection rates to overcome any pathogen persistenceas result of biotic factors (e.g. plant species and phyllosphere microbiome) under controlled conditions.

Validating effectiveness of pre-harvest pathogen control treatments within a commercial setting and identifying any antagonistic or synergistic factos.

Assessing the effect of in-field sanitation on downstream product shelf-life and quality of LGV.

Expected Outcomes
       
     
Expected Outcomes

Recommendation for optimium conditions and rates required to maximize potential of pre-harvest sanitizer treatments to inactivate or suppress growth of pathogens in LGV.

A better understanding of the impact of preharvest sanitiser on plant microbial communities, which could reveal valuable information relevant to the efficacy of disinfection as well as quality and shelf-life of LGV.

Project personnel
       
     
Project personnel

Hongshan SHANG, PhD Student

Associate Professor John Bowman, University of Tasmania

Professor Roger Stanley, University of Tasmania

Dr. Hannah Sassi, University of Sydney

Dr. Floris van Ogtrop, University of Sydney