title: Effect of atmospheric pressure plasma jet on the foodborne pathogens attached to commercial food containers.
abstract: Bacterial biofilms are associated with numerous infections and problems in the health care and food industries. The aim of this study was to evaluate the bactericidal effect of an atmospheric pressure plasma (APP) jet on Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella Typhimurium biofilm formation on collagen casing (CC), polypropylene (PP) and polyethylene terephthalate (PET), which are widely used food container materials. The samples were treated separately with the APP jet at a 50-W input power for 5 and 10 min, and nitrogen (6 l per minute) gas combined with oxygen (10 standard cubic centimeters per minute) was used to produce the APP. The APP jet reduced the number of bacterial cells in a time-dependent manner. All pathogens attached to CC, PP, and PET were reduced by 3-4 log CFU/cm(2) by the 10-min APP treatment. The developed APP jet was effectively reduced biofilms on CC, PP, and PET.
authors.affiliation: Crop Post-harvest Technology Division, National Institute of Crop Science, RDA, Suwon, 16613 Republic of Korea.
authors.forename: Hyun-Joo
authors.initials: HJ
authors.lastname: Kim
authors.affiliation: Department of Animal Science and Biotechnology, Chungnam National University, Daejeon, 34134 Republic of Korea ; Department of Animal Science, Uva Wellassa University, Badulla, 90000 Sri Lanka.
authors.forename: Dinesh D
authors.initials: DD
authors.lastname: Jayasena
authors.affiliation: Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, 08826 Republic of Korea.
authors.forename: Hae In
authors.initials: HI
authors.lastname: Yong
authors.affiliation: Department of Animal Science and Biotechnology, Chungnam National University, Daejeon, 34134 Republic of Korea.
authors.forename: Amali U
authors.initials: AU
authors.lastname: Alahakoon
authors.affiliation: Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 34141 South Korea.
authors.forename: Sanghoo
authors.initials: S
authors.lastname: Park
authors.affiliation: Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 34141 South Korea.
authors.forename: Jooyoung
authors.initials: J
authors.lastname: Park
authors.affiliation: Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 34141 South Korea.
authors.forename: Wonho
authors.initials: W
authors.lastname: Choe
authors.affiliation: Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, 08826 Republic of Korea.
authors.forename: Cheorun
authors.initials: C
authors.lastname: Jo
keywords: Atmospheric pressure plasma; Biofilm; Food container