Publication: Application of Atmospheric Cold Plasma for Inactivation of Spoilage and Pathogen Microorganisms
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Issued Date
2020-07-17
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ISSN
17551315
17551307
17551307
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2-s2.0-85089026361
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Mahidol University
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SCOPUS
Bibliographic Citation
IOP Conference Series: Earth and Environmental Science. Vol.505, No.1 (2020)
Suggested Citation
M. N. Eshtiaghi, N. Nakthong, Namthip Chumpolkulwong, Pichit Acharawaranon Application of Atmospheric Cold Plasma for Inactivation of Spoilage and Pathogen Microorganisms. IOP Conference Series: Earth and Environmental Science. Vol.505, No.1 (2020). doi:10.1088/1755-1315/505/1/012054 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/57862
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Title
Application of Atmospheric Cold Plasma for Inactivation of Spoilage and Pathogen Microorganisms
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Abstract
© 2020 IOP Publishing Ltd. All rights reserved. The effect of cold atmospheric plasma (ACP) technique on inactivation of selected microorganisms was investigated. To study the effect of cold plasma on microorganism inactivation Dielectric Barrier Discharge (DBD) plasma was applied. The inactivation of yeast (Saccharomyces cerevisiae) and 4 pathogen microorganisms (Salmonella typhimurium, Listeria monocytogenes, Escherichia coli, and Staphylococcus aureus) using DBD cold plasma were investigated. The results have shown that yeast can be effectively inactivated on agar plate within 5 min cold plasma treatment. Adding H2O2 in concentration of 2 or 5% on agar plate improved the inactivation of microorganisms using cold plasma. Furthermore, it was observed that it is possible to inactive pathogen microorganisms on agar plate using DBD cold plasma within 3 to 5 min treatment time. Up to 57%, 96%, 91% and 94 % pathogen microorganisms inactivation was achieved after 1 min DBD plasma treatments of S. aureus, L. monocytogenes, E. coli, and S. typhimurium respectively.