Table 2.

Viability (%) of the different strains as obtained with respect to control (microbial count in the presence of the corresponding amount of SO; see text for further details).

Type	Treatment time	25 mg OSO/5 mL of microorganism suspension			50 mg OSO/5 mL of microorganism suspension
		l-OSO	m-OSO	h-OSO	l-OSO	m-OSO	h-OSO
S. aureus	1 h	65	58	58	57	47	47
	3 h	20	21	0.2	1	3.6	0.2
	6 h	0	0	0	0	0	0
P. aeruginosa	1 h	100	100	100	100	100	25
	3 h	100	100	5.7	13.7	15.1	2
	6 h	5	5	0	1.8	3.8	0
E. faecalis	1 h	100	100	100	100	100	100
	3 h	100	100	100	100	27	23
	6 h	20	15	0.1	7	0.1	0
E. coli	1 h	100	100	100	100	100	100
	3 h	0.8	0.8	0.5	0.4	0.4	0.4
	6 h	0.4	0.4	0	0.3	0.2	0
C. albicans	1 h	100	100	100	100	100	100
	3 h	39	38	18	13	13	0.2
	6 h	1.6	0	0	0	0	0