Decontamination of Raspberries Inoculated with Enterococcus Faecium Bacteria Using Plasma-Activated Gaseous Media

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Authors

ŠTĚPÁNOVÁ Vlasta SCHOTTROFF Felix REHBRUNNER Georg AUER Alexandra SLAVÍČEK Pavel KRUMPOLEC Richard JÄGER Henry

Year of publication 2023
Type Article in Proceedings
Conference 24th Symposium on Applications of Plasma Processes (SAPP XXIV) & the 13th EU-Japan Joint Symposium on Plasma Processing
MU Faculty or unit

Faculty of Science

Citation
Web http://neon.dpp.fmph.uniba.sk/sapp/download/SAPP_XXIV_JSPP_XIII_Book_of_Contributed_Papers.pdf
Description Multi-hollow surface dielectric barrier discharge (MSDBD) generating plasma-activated gaseous media was used to decontaminate fresh raspberries inoculated with Enterococcus faecium bacteria. The highest microbial inactivation of 2 log10 was achieved for the exposure time of 1 min, distance of 10 mm and flow rate of 15 L/min. No colour changes on raspberries were observed after the plasma decontamination process. Temperature monitoring of the raspberries' surface immediately after plasma treatment showed only a slight increase, therefore giving positive implications for the product quality.
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