Table 1.

Specific growth rates and minimal inhibitory concentration for all systems assayed against a methicillin-resistant Staphylococcus aureus strain.

Chalcone	Concentration 5.00 (μg.mL-1)						MIC μg.mL-1
		0	5.00	10.0	15.0	20.0
1	µ (isolated)	0.0465	0.0380	0.0158	0.00130	0	15.8
	µ (comb)	0.0465	0.0231	0.00616	0	0	11.2
2	µ (isolated)	0.0453	0.0389	0.0350	0.0314	0.0312	45.0
	µ (comb)	0.0453	0.0150	0.0115	0.0112	0.00653	22.4
	µ (isolated)	0.0476	0.0373	0.0247	0.00425	0.000400	20.1
3	µ (comb)	0.0476	0.0296	0.00928	0.00343	0	15.3
4	µ (isolated)	0.0459	0.0386	0.0314	0.0254	0.0131	30.8
	µ (comb)	0.0459	0.0279	0.0197	0.0157	0.00719	22.5
5	µ (isolated)	0.0464	0.0391	0.0348	0.0292	0.0244	42.5
	µ (comb)	0.0464	0.00988	0.00866	0.00818	0.00766	∞

1: 2´,3- dihydroxychalcone; 2: 2´,4- dihydroxychalcone; 3: 2´,4´- dihydroxychalcone; 4: 2´,4´,3- trihydroxychalcone; 5: 2´,4´-dihydroxy-3´-methoxychalcone. MIC: minimal inhibitory concentration.