Geevika Ganegama Arachchi

Doctor of Philosophy, (Food Technology)
Study Completed: 2013
College of Health


Thesis Title
A study of natural lytic Listeria phages with decontaminating properties for use in seafood processing plant

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Ms Geevika Ganegama Arachchi isolated natural lytic Listeria phages from seafood processing environments in New Zealand and identified three different phages which could kill the foodborne pathogen, L. monocytogenes. The three phages killed L. monocytogenes cells which had been exposed to heat, starvation and salt, on stainless steel in the presence of fish proteins and at low temperatures. These conditions represent those in seafood processing plants. These results indicate that these three phages could be used as an natural alternative to chemical sanitisers for decontaminating seafood processing environments. 

Professor Steve Flint
Dr Cristina Cruz
Dr Beatrice Dias-Wanigasekera
Dr Lynn McIntyre
Dr Tony Mutukumira