Table 3.

Antibacterial and antibiofilm eradication and prevention activities (as percentage) of Centranthus longiflorus WB, US and IR stem extracts. The bacterial strains marked with an asterisk were only tested for their antibacterial activity.

		Antibacterial Activity		Antibiofilm Activity
				Eradication (%)						Prevention (%)
Technique	Bacterial Strains	MIC mg/mL	MBC mg/mL	100	50	25	12.5	6.25	3.12	100	50	25	12.5	6.25	3.12
WB	S. epidermidis	50	100	72	63	57	52	51	50	80	73	68	63	46	39
	E. coli	50	100	87	82	74	76	67	66	69	64	59	41	35	26
	P. aeruginosa *	50	100
	S. aureus *	50	100
US	S. epidermidis	50	100	68	67	64	62	61	51	94	91	84	82	76	49
	E. coli	50	100	73	68	67	66	59	47	59	58	50	50	35	30
	P. aeruginosa *	50	100
	S. aureus *	50	100
IR	S. epidermidis	50	100	80	78	75	70	69	68	97	90	88	86	83	80
	E. coli	50	100	93	83	81	79	77	74	77	73	68	68	67	66
	P. aeruginosa *	50	100
	S. aureus *	50	100