[目的]研究臭氧及负离子对金黄色葡萄球菌、大肠杆菌及沙门氏菌的杀菌效果.[方法]通过在鸡蛋表面涂抹一定浓度的菌液,研究臭氧及负离子对金黄色葡萄球菌、大肠杆菌及沙门氏菌杀菌效果的影响.[结果]臭氧处理4min后,对金黄色葡萄球菌、大肠杆菌、沙门氏菌的杀菌率分别达54.17%、85.24%、89.16%,各组之间差异显著(P<0.05);负离子处理1、3、5、7min后,对金黄色葡萄球菌、大肠杆菌、沙门氏菌的杀菌率分别达20.76%、25.24%、58.97%,各组之间差异显著(P<0.05).[结论]臭氧及负离子对于这3种细菌均有杀菌效果,臭氧对细菌的杀菌效果明显优于负离子.%[Objective] The aim of the study was to seek the efficacy of ozone and negative ions in disinfection of three kinds of bacteria. [ Method] Bacteria were coating on eggs to study the efficacy of ozone and negative ions in disinfection of three kinds of bacteria. [ Result] The results showed that after dealing with ozone for 4min, the bactericidal rate of Escherichia coli, Staphylococcus aureus and Salmonella was 54.17% ,85.24% ,89.16% respectively. After dealing with negative ions for 7 min, the bactericidal rate was 20.76% ,25.24% ,58.97% respectively. [ Conclusion] The results indicated that ozone and negative ions had positive effects to kill Escherichia coli, Staphylococcus aureus and Salmonella, ozone had better efficacy in killing bacteria than negative ions.
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