Polar extracts from (Tunisian) Acacia salicina Lindl. Study of the antimicrobial and antigenotoxic activities

Table 1 Antibacterial activity of Acacia salicina extracts, expressed as Minimum Inhibitory Concentration (MIC) and as Minimum Bactericidal Concentration (MBC)

	Gram positive organisms (mg/mL)				Gram negative organisms (mg/mL)
	S. aureus ATCC25923		E. faecalis ATCC25922		E. coli ATCC 25922		S. enteritidis ATCC 13076		S. typhimurium NRRLB 4420
Extracts^a	MIC	MBC	MIC	MBC	MIC	MBC	MIC	MBC	MIC	MBC
Metanolic extract	1	2.5	2.5	5	> 10	> 10	2.5	5	2.5	7.5
Aqueous extract	1.25*	2.5	2.5	5	2.5	5	2.5	5	2.5	5
TOF extract	0.0625*	0.125*	0.25*	0.5*	> 10	> 10	0.25*	0.5*	0.125*	0.5*
Ampicilin b	0.0015	0.225	0.0025	0.125	0.006	0.275	0.0019	0.085	0.0039	0.26

* P < 0.05 compared to negative control without the tested extract by student test.
^a Values were expressed as means ± standard deviation of three experiments
^b) Positive control

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