摘要
目的研究脉冲强光对生理盐水中微生物的杀灭作用。方法对生理盐水进行人工污染微生物,进行脉冲强光照射处理,测定微生物杀灭效果以及生理盐水pH值变化的情况。结果脉冲强光照射16s,可使生理盐水中污染大肠杆菌、枯草芽孢杆菌、黑曲霉菌降低7个数量级。试验因素对杀菌效果影响主次顺序为照射时间、菌液浓度、液层厚度。脉冲强光照射60s,生理盐水pH值变化幅度小于0.5。结论脉冲强光可有效杀灭生理盐水中污染微生物,同时对生理盐水pH值影响很小。
OBJECTIVE The effect of pulsed light killing microorganism in the physiological saline was studied. METHODS Contaminated microorganism in the physiological saline were treated by pulsed light, sterilization effect of pulsed light killing microorganism and influence on pH of physiological saline was tested. RESULTS The amount of Escherichia coli, Bacillus subtilis, Apsergillus Niger were reduced up to 7 logl0 orders respectively when these physiological saline were treated with 16 seconds flash. The factors, which influenced the effect of pulsed light sterilization, were in the order of flash time, microbe dosage, water depth. The change range of pH was no more than 0.5 with 60 seconds flash of pulsed light sterilization.CONCLUSION Pulsed light could reduced bacterium quantity in the physiological saline effectively. Sterilization of pulsed light had little influence on pH of physiological saline.
出处
《海峡药学》
2009年第7期97-100,共4页
Strait Pharmaceutical Journal
关键词
脉冲强光
生理盐水
杀菌
效果
Pulsed light
Physiological saline
Sterilization
Effect
