摘要
400mg／L二氧化氯溶液杀灭布片上大肠杆菌O157：H7的D值为1．53min，浓度系数为1．36，温度系数为1．63。溶液呈酸性时，杀菌效果较好，pH值＞7者明显下降。当菌悬液含20％小牛血清时，杀菌作用明显减弱。
The factors influencing the efficacy of chlorine dioxide in killing E. coli O157: H7 were observed experimentally. The results indicated that the efficacy of 400 mg / L chlorine dioxide solution in killing E. coli O157: H7 on cloth strip increased with prolonging the exposure time and the D value for killing bacteria was 1.53 min. The concentration coefficient of chlorine dioxide for killing the bacteria nas 1.36 and the temperature coefficient was 1.63. Good bactericidal efficacy was obtained when the PH value of the solution was 3~ 5. while the efficacy decreased significantly when the pH value was > 7. When the bacterial suspension used for contaminating the cloth strip contained 20% calf serum. its germicidal efficacy decreased significantly.
出处
《中国消毒学杂志》
CAS
1999年第1期7-10,共4页
Chinese Journal of Disinfection
关键词
二氧化氯
杀菌
影响因素
大肠杆菌
肠出血性
chlorine dioxide factorsinfluencing killing of bacteria temperature pH organic substance Escherichia coli O_(157):H_7
