不同类型铜合金板的杀菌特性.pdfVIP

微生物学通报 MAY 20, 2012, 39(5): 654−660 Microbiology China © 2012 by Institute of Microbiology, CAS tongbao@ 研究报告 不同类型铜合金板的杀菌特性 杨砚 邹正中 田维嘉 王革娇* (华中农业大学 生命科学技术学院 农业微生物学国家重点实验室 湖北 武汉 430070) 摘 要: 【目的】微生物对可接触表面的污染给公共卫生带来了极大的威胁。利用具有杀 菌特性的铜及铜合金代替不锈钢等制品, 可以降低消毒剂的使用和细菌的传播。【方法】通 过分析3 株金黄色葡萄球菌和2 株大肠杆菌在铜及铜合金平板上的存活时间, 对不同类型 铜合金的杀菌特性进行了探索。【结果】铜合金平板的杀菌能力与其铜含量成正比; 铜合 金对同属细菌的杀菌能力相近, 对不同属细菌则有一定差异; 铜合金的杀菌效率与细 菌对 Cu2+ 抗性没有直接联系; 铜合金杀菌的效率与细菌的细胞壁结构可能有很大关联。 【结论】铜及铜合金是较好的杀菌材料。 关键词: 铜, 铜合金, 杀菌, 金黄色葡萄球菌, 大肠杆菌 Bactericidal properties of different copper alloys * YANG Yan ZOU Zheng-Zhong TIAN Wei-Jia WANG Ge-Jiao (State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University , Wuhan, Hubei 430070, China) Abstract: [Objective] Contamination of micro-organisms attached on surface materials is one of the greatest threats for public health. Using copper alloys to replace stainless steel can re- duce the use of disinfectants and the spread of bacteria. [Methods] In this study, the bacteri- cidal abilities of different copper alloys through the survival of 3 Staphylococcus aureus and two Escherichia coli strains five different bacterial strains were investigated. [Results] The results revealed that the bactericidal abilities of the copper alloys are positively related to the copper content; the survival of the bacteria belonging to the same genus are similar; there was not