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Plasma inactivation of food-related microorganisms in liquids

Marsili, L. and Espie, S. and Anderson, J.G. and MacGregor, S.J. (2002) Plasma inactivation of food-related microorganisms in liquids. Radiation Physics and Chemistry, 65 (4-5). pp. 507-513. ISSN 0969-806X

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Abstract

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.