In the present study, the effects of non-thermal plasma, corona discharge plasma jet (CDPJ) against foodborne disease bacteria (Escherichia coli O157:H7 ATCC 43894, Salmonella typhimurium ATCC 13311, Staphylococcus aureus ATCC 25923) were determined, and the inactivation patterns were modeled using GinaFiT software in Microsoft Excel. Among inactivation models studied, Weibull-tail model was chosen as the best fit model based on SSE, RMSE, and r 2 values. The initial decimal reduction times (δ) of E. coli O157:H7, S. aureus, and Sal. typhimurium were 6.36, 8.31, and 12.11 s respectively. The inactivation effect increased with the current strength and was highest at span length of 25 mm. After 120 s treatment of the CDPJ at 1.50 A with span length of 25 mm, E. coli O157:H7 was reduced by 5.26 log, S. aureus by 4.21 log, Sal. typhimurium by 2.89 log.

• Taehoon Lee(Department of Food Science & Biotechnology, Gachon University)
• Pradeep Puligundla(Department of Food Science & Biotechnology, Gachon University)
• Chulkoon Mok(Department of Food Science & Biotechnology, Gachon University)