Effect of extremely low-concentration gaseous chlorine dioxide against surface Escherichia coli, Pseudomonas aeruginosa and Acinetobacter baumannii in wet conditions on glass dishes

Table 1 Effect of organic substance load on bactericidal activity against P. aeruginosa of extremely low concentration gaseous ClO₂ in wet conditions

Exposure time (h)	FBS concentration in bacterial suspension (%)	P. aeruginosa survival (log₁₀ CFU/dish)
Exposure time (h)	FBS concentration in bacterial suspension (%)	Air	ClO₂
3	0	6.2	0.1 (6.1^b)
	3	7.0	3.3 (3.7^a)
	5	6.9	4.0 (2.9^a)
	10	6.7	5.2 (1.5)

Values in parentheses in the table indicate log₁₀ reduction. Survival values of P. aeruginosa indicate reductions of ^a> 2 log₁₀ and ^b> 4 log₁₀ as compared to control values (Air). Data represent mean value (n = 4)

ISSN: 1756-0500