Plasma inactivation of food-related microorganisms in liquids

L. Marsili, S. Espie, J.G. Anderson, S.J. MacGregor

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This paper reports on a plasma process that inactivates microorganisms in liquids through the application of high-voltage pulses. These pulses result in breakdown of the gas and liquid layers, producing many active species such as UV photons, ozone, free radicals and free electrons. Several test microorganisms representing a range of problematic microorganisms were investigated. Significant reductions in microbial population were achieved, demonstrating the effectiveness of using the plasma discharge process to treat contaminated liquids.
Original languageEnglish
Pages (from-to)507-513
Number of pages7
JournalRadiation Physics and Chemistry
Issue number4-5
Publication statusPublished - 30 Nov 2002


  • plasma inactivation
  • plasma
  • microorganisms

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