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Title
Japanese: 
English:Development of Decontamination Treatment Techniques for Dry Powder Foods by Atmospheric-Pressure Nonequilibrium DC Pulse Discharge Plasma Jet 
Author
Japanese: 湯地 敏史, 中林 健一, 木之下 広幸, Mungkung Narong, 須崎 嘉文, Mamat Sarizam, 赤塚 洋.  
English: Toshifumi Yuji, Kenichi Nakabayashi, Hiroyuki Kinoshita, Narong Mungkung, Yoshifumi Suzaki, Sarizam Mamat, Hiroshi Akatsuka.  
Language English 
Journal/Book name
Japanese: 
English:Journal of Food Quality 
Volume, Number, Page Vol. 2021        8896716
Published date July 26, 2021 
Publisher
Japanese: 
English:Hindawi 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://www.hindawi.com/journals/jfq/2021/8896716/
 
DOI https://doi.org/10.1155/2021/8896716
Abstract Dry powder food ingredients imported to Japan contain large amounts of viable bacteria and coliform bacteria, and we need a simple, low-cost, dry nonthermal decontamination method without spoiling nutrients, color, fragrance, and flavor. In this study, it is shown that the decontamination performance against viable bacteria and coliform bacteria is proportional to the plasma irradiation time when OH and O3 radicals are incident on the dry powder food ingredients placed in an atmospheric-pressure nonequilibrium DC pulse discharge Ar + O2 mixture gas plasma jet. Our study revealed that there is a correlation between the plasma irradiation time and DC pulse frequency increase and the decontamination effect on the general bacterial count.

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