酸性電解水と擬似的酸性水との殺菌効果の比較検討  [in Japanese] Bactericidal Effect of Acidic Electrolyzed Water : Comparison of Chemical Acidic Sodium Hydrochloride (NaOCl) Solution  [in Japanese]

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Abstract

酸性電解水は, 現在, 多種多様な機種より生成され使用されている.本検討では, 酸性電解水の殺菌における塩素量とpHの影響を明確にすることを目的に行った.<I>Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa</I>の3株を用い, 強酸性および弱酸性電解水のpH領域を希塩酸と水酸化ナトリウムで作製した擬似的酸性水を用い, 酸性電解水と比較した.pH5~6では, 塩素量50og/lで3菌株に即効的な効果が認められ, 6時間開放放置でも塩素量の消失はなかった.また, pH2.67~2.80, 塩素量5mg/lで3菌株に殺菌効果があり, 6時間開放放置で80%塩素量が残留していた.以上のことから, 少量の塩素で殺菌するのであれば, pH2.7前後の強酸性電解水を生成直後に使用し, 安定した殺菌力が望まれる環境清掃などには弱酸性電解水の使用が適していると考えられた.

Acidic electrolyzed water is made recently by various kinds of machines and is widely utilized. In this study, we intended to clarify the relationship between the concentration of chloride and pH in the bactericidal effects with acidic electrolyzed water. The effects of weak or strong acidic electrolyzed water were compared with a pseudo-acidic water of pH adjusted by diluted hydrochloric acid and sodium hydroxide, on <I>Staphylococcus aureus, Staphylococcus epidermidis</I> and <I>Pseudomononas aeruginosa</I>. At pH 5.0-6.0, 3 bacterial strains were killed soon after being exposed to the acidic water containing chloride 50 mg/liter, and the amount of chloride did not change after allowing to stand open for 6 hours. At pH 2.67-2.80, the bactericidal effects was observed at the concentration of chloride 5 mg/liter, and 80% of chloride remained after allowing to stand for 6 hours. These results indicated that newly made strong acidic water is more effective under a smaller amount of chloride at pH 2.7, and that weak acidic electrolyzed water should be used, if stable bactericidal effect is expected in cleaning the surroundings.

Journal

  • Kansenshogaku Zasshi

    Kansenshogaku Zasshi 70(9), 915-922, 1996-09-20

    The Japanese Association for Infectious Diseases

References:  17

Cited by:  34

Codes

  • NII Article ID (NAID)
    10008723781
  • NII NACSIS-CAT ID (NCID)
    AN00047715
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03875911
  • NDL Article ID
    4048188
  • NDL Source Classification
    ZS9(科学技術--医学--病理学・微生物学・寄生虫学・感染・免疫学・血清学・アレルギー)
  • NDL Call No.
    Z19-193
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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