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KMID : 1171820060210040011
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Journal of Environmental and Sanitary Engineering
2006 Volume.21 No. 4 p.11 ~ p.18
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Antimicrobial Effect of Lactic acid and Hydrogen Peroxide and Distribution of Vibrio parahaemolyticus from the Incheon Adjacent Sea
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Jang Jae-Seon
Cho Woo-Kyoun
Lee Hye-Jeong
Lee Jea-Man
Kim Hye-Young
Kim Yong-Hee
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Abstract
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This study was carried out to investigate the distribution of Vibrio parahaemolyticus in the Incheon adjacent sea, and antimicrobial effect on growth of Vibrio parahaemolyticus in lactic acid and hydrogen peroxide and combination of lactic acid and hydrogen peroxide. The detected strains were compared geographical, months and sample types. The distribution of Vibrio parahaemolyticus was high at Ganghwa county with 66.1%(336 samples), on 7-9 months with 72.4%(386 samples) and from tireland with 75.0%(90 samples), respectively. The minimun inhibitory concentration (MIC) of lactic acid in Vibrio parahaemolyticus were 1250 ppm at pH 6.5 and 7.0, 625 ppm at pH 6.0. respectively. The minimun inhibitory concentration (MIC) of hydrogen peroxide in Vibrio parahaemolyticus were 25 ppm at pH 6.5 and 7.0, 12.5 ppm at pH 6.0, respectively. MICs of combined treatment of lactic acid and hydrogen peroxide in Vibrio parahaemolyticus were 625 ppm of lactic acid with 12.5 ppm of hydrogen peroxide. The correlations between MICs of lactic acid and hydrogen peroxide in Vibrio parahaemolyticus were obtained through the coefficient of determination(R²). R² value were 1.0000. The antimicrobial effect of lactic acid and hydrogen peroxide in Vibrio parahaemolyticus could be confirmed from the result of this experiment.
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KEYWORD
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Vibrio parahaemolyticus, lactic acid, hydrogen peroxide, MIC
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