摘要
目的观察真空臭氧消毒机对新鲜果蔬表面微生物的杀灭效果。方法采用模拟现场试验方法,观察真空臭氧消毒机对青枣和胡萝卜表面人工污染菌的杀灭效果。结果在臭氧消毒机密闭箱内真空度为50 k Pa,充入臭氧最高浓度为167 mg/L,持续作用20 min后,对青枣表面大肠杆菌及金黄色葡萄球菌的平均杀灭对数值分别为3. 05和3. 37;对胡萝卜表面大肠杆菌及金黄色葡萄球菌的平均杀灭对数值分别为2. 34和2. 44。结论真空臭氧消毒机对裸露叠放的新鲜果蔬表面大肠杆菌和金黄色葡萄球菌具有良好的杀菌效果。
Objective To observe the germicidal effect of vacuum ozone disinfector on the surface of fresh fruits and vegetables.Method We observed the killing effect of vacuum ozone disinfector on the surface of jujubes and carrots by the simulating field test.Result When the pressure in the sterilizer box was 50 k Pa and the maximum ozone concentration was167 mg/L,the average killing value of Escherichia coli and Staphylococcus aureus on the surface of jujubes was 3.05 and3.37 respectively after continuous disinfection for 20 min.The average killing value of Escherichia coli and Staphylococcus aureus on carrots surface was 2.34 and 2.44 respectively.Conclusion Vacuum ozone disinfector has certain disinfection effect on Escherichia coli and Staphylococcus aureus on the surface of fresh fruits and vegetables.
作者
陈梦曦
李欣洋
代黄梅
张遵真
CHEN Meng-xi;LI Xin-yang;DAI Huang-mei;ZHANG Zun-zhen(West China School of Public Health,Sichuan University,Chengdu Sichuan 610041 ,China)
出处
《中国消毒学杂志》
CAS
2019年第3期164-166,共3页
Chinese Journal of Disinfection
基金
国家自然科学基金面上项目(NO.81773380)
关键词
真空臭氧消毒机
果蔬
模拟现场杀菌试验
vacuum ozone disinfector
fruits and vegetables
the simulated field germicidal test
