Comparison of antibacterial ability of copper and stainless steel
- 108 Downloads
In this paper, the electro-analysis and spectrophotometric analysis methods were used to study the antibacterial ability of copper and stainless steel materials. When Escherichia coli (E. coli) and photo-bacteria were used as samples, the antibacterial effect of stainless steel was very weak, while the percentage of bacteria dying from exposure to metallic copper for 30 min was over 90%. The antibacterial ability of copper has a potential application in the field of disinfection, food packaging and piping of drinking water.
Keywordselectro-analysis photometric analysis copper stainless steel Escherichia coli photo-bacteria
Unable to display preview. Download preview PDF.
- 1.Prescott L M, Harley J P, Klein D A. Microbiology. New York: McGraw-Hill Companies, 2002, 128–130Google Scholar
- 2.Buzby J C, Frenzen P D, Rasco B. US Department of Agriculture. Washington D.C., 2001Google Scholar
- 4.Richard M S. High-pressure sterilization of foods. Food Technology, 2000, 54(11): 67–72Google Scholar
- 5.Len S V, Huang Y C, Erichson M. Ultraviolet spectrophotometric characterization and bactericidal properties of electrolyzed oxidizing water as influenced by amperage and pH. Food Prot, 2000, 63(11): 1534Google Scholar
- 6.Sierra G. Ultrasonic synergistic effects in liquid-phase chemical sterilization. Applied Microbiology, 1997, 22(2): 160Google Scholar
- 9.Gao Y L, Liu X, Wang Z X, Yang X M. Antibacterial effects nano-structural metal oxide’s on bacterium contaminatied food. Food Science, 2005, 26(4): 45Google Scholar
- 10.Ai S Y, Zhang W, Gao M N, Gu F L, Wang Q J, Jin L T. Determination of reactive intermediates during anodic oxygen-transfer reactions at lead dioxide. Chem Res Chinese U, 2004, 20(3): 289–293Google Scholar
- 12.Zhang W, Tang H, Gu J, Geng P, Jin L T. Study on preparation of nano-SnO2 electrode and its application to the fast counting of E. coli in water. Acta Chimica Sinica, 2005, 63(14): 1313–1317Google Scholar