食具消毒柜对微生物杀灭效果的实验研究

研究以臭氧和紫外线为消毒因子的食具消毒柜杀灭微生物效果,采用载体定量方法进行了实验室观察。结果,以消毒因子作用30 m in+烘干(16~50℃)60 m in,对大肠杆菌杀灭率为100%,对金黄色葡萄球菌和枯草杆菌黑色变种芽孢杀灭率达到99.9%以上。消毒作用60 m in+烘干60 m in,可完全灭活脊髓灰质炎病毒和完全破坏HBsAg抗原性。消毒作用30 m in,柜内臭氧浓度为45~53 mg/L,作用60 m in臭氧浓度达到52~57 mg/L。结论,该食具消毒柜对细菌繁殖体、细菌芽孢和病毒具有很强的杀灭效果。

EXPERIMENTAL STUDY ON GERMICIDAL EFFICACY OF TABLEWARE DISINFECTOR

In order to study the germicidal efficacy of tableware disinfector using ozone and ultraviolet rays as the disinfection agents,carrier quantitative method was used to carry out laboratory observaton.Results: Disinfection with the disinfection agents for 30 min + stoving(16～50℃) for 60 min killed 100% of Escherichia coli and over 99.9% of Staphylococcus aureus and Bacillus subtilis var.niger spores.Disinfection for 60 min + stoving for 60 min could completely inactivate poliovirus and completely destroy the antigenicity of HBsAg.The ozone concentration in the disinfector was 45～53 mg/L after disinfection for 30 min and was 52～57 mg/L after disinfection for 60 min.Conclusion: The tableware disinfector has high efficacy in killing vegetative forms of bacteria and bacterial spores and inactivating viruses.