臭氧穿透棉织物杀菌效果的研究  

STUDY ON GERMICIDAL EFFICACY OF OZONE PENETRATE COTTON FABRIC

作　　者：王静思[1] 罗希[2] 刘衡川[3] 黄偌颖[3] 王国庆[3] 

机构地区：[1]成都市武侯区疾病预防控制中心,四川成都610041 [2]中南大学公共卫生学院 [3]四川大学华西公共卫生学院

出　　处：《中国消毒学杂志》2014年第9期921-923,共3页Chinese Journal of Disinfection

摘　　要：目的观察不同条件下臭氧气体穿透棉织物的消毒效果,以确定床单位臭氧消毒机的实际临床应用价值。方法采用载体定量杀菌试验方法,对床单位臭氧消毒器发生的臭氧气体杀灭棉织物内污染菌效果进行了观察。结果该床单位消毒器以臭氧气体为杀菌因子,消毒袋内维持臭氧浓度均在500 mg/m3以上。在常温常湿条件下,以臭氧平均浓度为516 mg/m3,熏蒸消毒60 min,停止臭氧发生后保持30 min,臭氧穿透一层棉布后对金黄色葡萄球菌、大肠杆菌杀灭对数值(KL)均>3.0;穿透三层棉布后对金黄色葡萄球菌、大肠杆菌和白色念珠菌的杀灭对数值依次为3.0、2.6和1.5。结论臭氧熏蒸消毒方法可用于床单位表面消毒,不适宜床单位深层消毒。Objective To observe disinfection efficacy of ozone penetrate cotton fabric under different conditions, and to determine the practical applied value of the ozone sterilizer in the clinic. Methods Carrier quantitative germicidal test was used to observe germicidal efficacy of ozone produced by bed unit ozone sterilizer. Results Ozone was regarded as a bactericidal factor of bed unit ozone sterilizer, and keeping the ozone concentration in bags above 500 mg/m3. Operating the bed unit ozone sterilizer for 60 min and retaining for 30 min under normal temperature and pressure, the ozone concentration attained 516 mg/m3, penetrating one layer of cloth chip, the killing logarithms （KL） of Staphylococcus aureus, and Escherichia coli were above 3.00. Under three layer of cloth chip, the KL of Staphylococcus aureus, Escherichia coli, and Candida albicans are 3.0,2. 6 and 1.5 respectively. Conclusion Ozone disinfection is suitable for bed unit surface disinfection, but not for deeply disinfection.

关 键 词：床单位臭氧消毒器 棉织品 穿透性 杀菌效果 

分 类 号：R187.2[医药卫生—流行病学]