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等离子医学
SJR: 0.278 SNIP: 0.183 CiteScore™: 0.57

ISSN 打印: 1947-5764
ISSN 在线: 1947-5772

等离子医学

DOI: 10.1615/PlasmaMed.2018026752
pages 185-193

Optimization of Short-Pulsed Dielectric Barrier Discharge for In-Package Disinfection

Pietro Ranieri
Nyheim Plasma Institute, Camden, NJ, USA
Anita Mannsberger
Nyheim Plasma Institute, Camden, NJ, USA; University of the Applied Sciences, Krems, Austria
Chong Liu
Nyheim Plasma Institute, Camden, NJ, USA
Alyssa Suarez
Nyheim Plasma Institute, Camden, NJ, USA; Drexel University, School of Biomedical Engineering, Science, and Health Systems, Philadelphia, PA, USA
Ngoc Anh Huynh
Nyheim Plasma Institute, Camden, NJ, USA; Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104
Vandana Miller
C&J Nyheim Plasma Institute, Drexel University, Camden, New Jersey 08103
Alexander A. Fridman
C&J Nyheim Plasma Institute, Drexel University, Camden, New Jersey 08103
Gregory Fridman
C&J Nyheim Plasma Institute, Drexel University, Camden, New Jersey 08103

ABSTRACT

Plasma treatment for bacterial inactivation has been studied via the direct application of dielectric barrier discharges or the indirect afterglow of atmospheric pressure plasma jets. Industrial application of this technology is limited to open contact between plasma and bacteria, which limits the potential use of atmospheric plasma for food safety. In this paper, we show that uniform plasma treatment using microsecond-pulsed and nanosecond-pulsed dielectric barrier discharge can be applied directly to a bread surface through two layers of plastic bread packaging material. We show inactivation of Escherichia coli inoculated on the bread surface inside of packaging material without significantly modifying the plastic. This discharge will be used for the prevention of mold growth on bread in future studies.


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