EVALUATION OF GROWTH INHIBITORY EFFECT OF CERAMICS POWDER SLURRY ON BACTERIA BY CONDUCTANCE METHOD

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著者

    • SAWAI Jun
    • Department of Chemical Engineering, Division of Chemical & Biological Science and Technology, Tokyo University of Agriculture & Technology
    • IGARASHI Hideo
    • Department of Chemical Engineering, Division of Chemical & Biological Science and Technology, Tokyo University of Agriculture & Technology
    • HASHIMOTO Atsushi
    • Department of Chemical Engineering, Division of Chemical & Biological Science and Technology, Tokyo University of Agriculture & Technology
    • KOKUGAN Takao
    • Department of Chemical Engineering, Division of Chemical & Biological Science and Technology, Tokyo University of Agriculture & Technology
    • SHIMIZU Masaru
    • Department of Chemical Engineering, Division of Chemical & Biological Science and Technology, Tokyo University of Agriculture & Technology

抄録

The growth inhibitory effect of 26 ceramic powder slurries on bacteria was evaluated by measurement of the conductance change of the growth medium caused by bacterial metabolism (conductance method). <I>Escherichia coli</I>, <I>Salmonella typhimurium</I>, <I>Pseudomonas aeruginosa</I>, <I>Staphylococcus aureus</I> and <I>Bacillus subtilis</I> were used as test bacteria. It was found that the growth of the test bacteria was inhibited by 10 ceramic powders. Magnesium oxide (MgO) and calcium oxide (CaO) powder slurries had a growth inhibitory effect on all test bacteria. In the cases of MgO, and CaO powder slurries, there was no difference in sensitivities among the test bacteria. These powder slurries exhibited bactericidal action on the test bacteria. On the other hand, the zinc oxide (ZnO) powder slurry inhibited the growth of Gram-positive bacteria stronger than Gram-negative bacteria. The effect was bacteriostatic action. The conductance method could provide quantitative and simple evaluation of the growth inhibitory effect of ceramic powder slurries on bacteria, and was more applicable than the conventional methods, such as the halo test.

収録刊行物

  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 28(3), 288-293, 1995-06 

    The Society of Chemical Engineers, Japan

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被引用文献:  22件

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各種コード

  • NII論文ID(NAID)
    10002133757
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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