Inactivation characteristics of bacillus thuringiensis spore in liquid using atmospheric torch plasma using oxygen

Nobuya Hayashi, Yusuke Akiyoshi, Yasuyo Kobayashi, Kouzo Kanda, Kazusato Ohshima, Masaaki Goto

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    Abstract

    The atmospheric plasma torch produced by a barrier discharge using air and oxygen as working gases is adopted to inactivate microorganisms in a liquid. The inactivation characteristics of bacillus spore are investigated and compared with the heat sterilization method, and sterilization factors are active species with short-lifetimes produced in water. The population of Bacillus thuringiensis spore in pure water decreases 10 -3 times within 20 min, and the obtained result is equivalent to the heat sterilization of 95 C.

    Original languageEnglish
    Pages (from-to)173-176
    Number of pages4
    JournalVacuum
    Volume88
    Issue number1
    DOIs
    Publication statusPublished - Jan 1 2013

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    All Science Journal Classification (ASJC) codes

    • Instrumentation
    • Condensed Matter Physics
    • Surfaces, Coatings and Films

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