Table 4.

Antibacterial activity of cell free supernatant of L. plantarum against L. monocytogenes isolates recovered from pasteurized milk, chicken fillets and stool of pregnant women.

Probiotics	Concentration (μg/mL)	Inhibition zone diameter (mm) of L. monocytogenes isolates
		Pasteurized milk		Chicken fillets		Pregnant women stool
		M1	M2	C7	C9	W18	W20
Ampicillin	10	18.0 ± 0.05	23.0 ± 0.05	21.2 ± 0.26	22.0 ± 0.07	19.1 ± 0.32	21.2 ± 0.38
L. plantarum	5	0.0	0.0	0.0	0.0	0.0	0.0
	10	27.6 ± 0.2	0.0	0.0	0.0	19.2 ± 0.36	0.0
	20	36.0 ± 1.05	23.6 ± 0.06	18.0 ± 0.45	28.1 ± 0.42	29.9 ± 0.83	0.0
	30	41.0 ± 0.02	28.7 ± 0.06	25.1 ± 0.09	31.3 ± 0.20	33.6 ± 0.20	16.7 ± 0.06
	40	49.0 ± 0.06	38.2 ± 1.05	30.0 ± 0.95	40.3 ± 0.15	38.3 ± 0.10	23.7 ± 0.15
	50	53.7 ± 0.10	41.1 ± 1.01	34.1 ± 1.10	44.3 ± 0.20	45.0 ± 0.05	26.3 ± 0.61
	70	54.9 ± 0.40	44.0 ± 0.26	36.4 ± 0.35	47.1 ± 0.15	46.4 ± 0.12	27.0 ± 0.55
	100	55.13 ± 0.80	44.2 ± 1.30	36.4 ± 0.15	47.2 ± 0.40	46.3 ± 0.20	27.0 ± 0.35