Electrolytic Generation of Available Chlorine and Ozone for Sterilization by Use of Noble Metal Electrode

Kondo, Yasuhito; Koizumi, Yurika; Iseki, Masahiro; Yamada, Atsushi; Takaoka, Daizo; Takizawa, Kenji; Yasuda, Masashi; Imai, Hachiro

doi:10.4139/sfj.56.106

Cited by 4 publications

(1 citation statement)

References 13 publications

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“…OW was generated with a flow-type electric ozone generator (Do-30, Kobe Steel, Ltd., Kobe, Japan) and was used within 5 min. The concentration of dissolved or dispended ozone was measured based on the indigo method (Kondo et al, 2005). A sterile, distilled water solution (DW) was used for the control study.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Stable Ozone Microbubble Water on Reducing Bacteria on the Surface of Selected Leafy Vegetables

Inatsu

Kitagawa

Nakamura

et al. 2011

FSTR

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Effectiveness of a novel developed sanitizer, stable ozone microbubble-containing water (ozone microbubble water; OMBW), on reducing 13 kinds of bacteria was evaluated in vitro. The effectiveness of dip inoculated Escherichia coli O157:H7 or naturally attached bacteria on four kinds of leafy vegetables was also evaluated. For the purpose of comparison, the effectiveness of gaseous ozone (GO), sodium hypochlorite solution (NaClO) and distilled water (DW) were also evaluated. A 5.0 to 7.4 log reduction of viable cells was observed in an in vitro study. In contrast, a 0.8 to 1.2 or 0.9 to 1.8 log CFU/g reduction in E. coli viable cells was observed after washing with OMBW or NaClO, respectively, for all tested leafy vegetables. No significant difference was observed in the effectiveness of OMBW, ozonated water (OW) and DW. No reduction of viable cells was observed after exposure of leaves to GO. Similar experimental results were observed with the naturally attached bacteria. No difference in color and appearance was observed with DW and other sanitizing treatments. These results suggest that the effectiveness of OMBW in surface decontamination of leafy vegetables is similar to that of OW.

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Section: Introductionmentioning

confidence: 99%

Effectiveness of Stable Ozone Microbubble Water on Reducing Bacteria on the Surface of Selected Leafy Vegetables

Inatsu

Kitagawa

Nakamura

et al. 2011

FSTR

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Electrochemical Determination of Free Chlorine Based on Anodic Oxidation

Kodera¹,

Umeda

Yamada

2009

Bunseki kagaku

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The present work described an attempt to apply an anodic-oxidation reaction of free chlorine for the quantitative determination. As a working electrode, polycrystalline platinum disk was mainly used. Cyclic voltammograms exhibited well-defined oxidation wave at about 1.1 V vs. Ag/AgCl. The oxidation wave showed good reproducibility and a linear relationship between the oxidation peak current versus concentration. The electro-oxidation of trace amounts of free chlorine, however, particularly amounts less than 0.028 mmol dm, was strongly inhibited by the initial formation of platinum oxide in a non-Faradaic reaction. Meanwhile, a reduction wave with reproducibility was observed at about 0.6 V vs. Ag/AgCl, after the sweep direction was switched from anodic to cathodic. The peak current and the concentration showed a linear relationship passed through the origin. Moreover, another reduction wave with reproducibility was observed at about 0.8 V vs. Ag/AgCl in switching potential ≧ 1.45 V vs. Ag/AgCl, the peak current and the concentration also had a linear relationship.

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Dissolution of Copper by an Acidic Electrolyzed Water of Dilute Sodium Sulfate Solution and its Affectors

Takenouchi¹,

Wakabayashi²

2008

Journal of The Surface Finishing Society of Japan

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Electrolytic Generation of Available Chlorine and Ozone for Sterilization by Use of Noble Metal Electrode

Cited by 4 publications

References 13 publications

Effectiveness of Stable Ozone Microbubble Water on Reducing Bacteria on the Surface of Selected Leafy Vegetables

Effectiveness of Stable Ozone Microbubble Water on Reducing Bacteria on the Surface of Selected Leafy Vegetables

Electrochemical Determination of Free Chlorine Based on Anodic Oxidation

Dissolution of Copper by an Acidic Electrolyzed Water of Dilute Sodium Sulfate Solution and its Affectors

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