Application of an Impedimetric Technique for the Detection of Lytic Infection of Salmonella spp. by Specific Phages

Table 4

Results obtained from conductimetric tests.

	Detection time (hours)				Differential between curves (area) (mm^2)^∗
Bacteria	No phage	𝜙 2/2	𝜙 39	𝜙 38	𝜙 2/2	𝜙 39	𝜙 38
S1400/94	1.3±0.2	4.5±0.1	4.0±0.2	2.5±0.5	5.6±1.3	2.7±0.2	3.0±0.2
869’	1.8±0.2	6.5±0.4	2.1±0.2	3.1±0.5	7.7±0.4	4.3±0.5	5.7±0.4
128’	1.5±0.1	6.6±0.7	4.0±0.5	2.6±0.4	6.9±0.5	6.2±0.4	4.5±0.3
172	1.1±0.4	6.6±0.9	7.4±0.3	8.5±0.5	9.0±0.9	7.6±1.6	8.4±0.1
205	1.5±0.1	7.0±0.2	6.7±0.3	6.8±0.1	8.3±0.8	4.2±0.6	6.7±0.3
002	1.3±0.2	7.2±0.7	7.2±0.2	5.0±0.2	8.7±0.7	4.4±0.3	4.7±0.2
161	1.8±0.2	8.0±0.4	3.1±0.3	2.5±0.3	7.8±0.6	4.7±0.3	3.4±0.5
195	1.7±0.4	6.9±0.3	6.1±0.3	7.5±0.2	6.4±0.6	6.5±0.1	13.4±0.3
036	1.4±0.2	7.5±0.3	6.1±0.5	7.2±0.3	9.2±0.6	4.1±0.2	8.4±0.2
152	1.3±0.3	6.8±0.7	6.7±0.4	7.0±0.4	8.6±0.7	8.1±0.5	6.6±0.6
039	2.0±0.3	6.5±0.8	6.5±0.2	6.5±0.6	8.8±0.5	7.1±1.1	8.4±0.2
023	1.4±0.4	4.0±0.6	4.5±0.2	4.1±0.3	4.1±0.3	3.1±0.6	5.9±0.3

Note: Means and standard deviations are based on three experiments in duplicate. ^∗The differential between curves is obtained by calculating the area between the control curve (sample with no phage) and that of the sample (with a phage).