摘要
邻苯二甲醛和戊二醛均为高效消毒剂,为了解二者杀菌效果的差别,采用载体定量杀菌试验对其进行了比较试验。结果,以含1000 mg/L的邻苯二甲醛或戊二醛,作用5 m in,对不锈钢片上大肠杆菌和金黄色葡萄球菌杀灭对数值均可达到5以上。以含10 g/L邻苯二甲醛或戊二醛作用3h,前者对不锈钢片上枯草杆菌黑色变种芽孢杀灭对数值为5.14,后者则只有4.43。但在推荐的使用浓度下作用4 h,5 g/L邻苯二甲醛对该细菌芽孢杀灭对数值为3.69;20 g/L戊二醛对该细菌芽孢杀灭对数值为6.17。结论,在相同浓度下,邻苯二甲醛杀灭细菌芽孢的效果比戊二醛强;在推荐的使用浓度下,戊二醛杀灭细菌芽孢的效果则好于邻苯二甲醛。
Both orthophthalaldehyde and glutaraldehyde are high - level disinfectants. In order to know the difference of their germicidal efficacy, carrier quantitative germicidal test was used to make comparison between them. Results： The killing logarithm of Escherichia coli and Staphylococcus aureus on stainless steel coupons exposed to the disinfectant containing 1000 mg/L orthophthalaldehyde or glutaraldehyde for 5 min attained over 5. The killing logarithm of spores of Bacillus subtilis var. niger on stainless steel coupons exposed to the disinfectant containing 10 g/L orthophthalaldehyde or glutaraldehyde for 3 h was 5.14 for the former and only 4.43 for the latter. However, when the spores were exposed to the recommended applied concentration for 4 h, the killing logarithm of the bacterial spores exposed to 5 g/L orthophthalaldehyde was 3.69 and that of the bacterial spores exposed to 20 g/L glutaraldehyde was 6.17. Conclusion： At same concentration, the sporicidal efficacy of orthophthalaldehyde was higher than that of glutaraldehyde, while at the recommeded applied concentration, the sporicidal efficacy of glutaraldehyde was better than that of orthophthalaldehyde.
出处
《中国消毒学杂志》
CAS
北大核心
2005年第4期416-418,共3页
Chinese Journal of Disinfection
关键词
邻苯二甲醛
戊二醛
杀菌效果
枯草杆菌黑色变种芽孢
大肠杆菌
金黄色葡萄球菌
orthophthaldehyde
glutaraldehyde
germicidal efficacy
spore of Bacillus subtilis var. niger
Escherichia coli
Staphylococcus aureus
