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KMID : 0950020070330010063
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Journal of Health Science & Medical Technology
2007 Volume.33 No. 1 p.63 ~ p.68
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A study for the antimicrobial activity of copper tin alloy
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Lee Jin-Young
Choi Jae-Hyung
Lee Jong-Keun
Kim Jong-Hoon
Baek Ji-Hyun
Ha Ji-Lee
Kim Hyun-Sil
Kim Yoo-Jung
Han Woong-Soo
Kim Young-Ju
Lee Yong-Dae
Choi Dal-Woong
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Abstract
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Banja is the unique metal product of Korea produced by hundreds of quenching and beating an alloy of copper and tin in a ratio of 78 to 22. It has a secret that has not been solved in a scientific way. Recently, Banja became popular again as it is known of less toxicity and sterilization. Based on the trend, we examined antimicrobial activity of copper and tin alloy against E. coli to use this alloy benefit to the environmental health area. Despite of different strengths, copper and tin alloy had an effect to restrain proliferation of E. coli in the experiment. Thus, we tried to proved significance of the antimicrobial activity through statistical treatment. It is verified that about 50% of the number of colonies are reduced in 1/10 diluted solution and 30% in 1/100 diluted solution where copper and tin alloy is treated. However, the statistical significance could not be proved due to big standard deviation despite of big average reduction. It is likely to have a significant result if conducting an experiment with well-controlled strain and more samples. Banja is known of various effects such as not only the antifungal activity as in the experiment but also maintenance of the electrolytic reduction number and prevention of protein destruction and so on. Thus it is important to develop the unique property of copper and tin alloy that contains the wisdom of our ancestors to be beneficial to the environmental health area. This study thus contributes to providing fundamental data to the field.
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KEYWORD
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antimicrobial activity, copper, tin, alloy
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