Table 2.

The antimicrobial activity of propolis extracts.

Extract	E. coli		B. subtilis		C. albicans
	Inhibition zone, mm	MIC, μg/mL	Inhibition zone, mm	MIC, μg/mL	Inhibition zone, mm	MIC, μg/mL
A21	0.50a	< 1663	1.00a	4990	1.33 ± 0.47	< 832
A41	1.00a		na		2.33 ± 0.94
A61	2.00a		na		2.67 ± 0.47
A23	0.50a	< 832	0.67 ± 0.24	2495	1.00 ± 0.82	< 832
A43	1.00a		0.50a		2.00 ± 0.82
A63	2.33 ± 0.47		na		1.33 ± 0.47
A25	na	<832	0.50a	< 1633	2.01	< 832
A45	1.00a		0.50a		2.00 ± 1.00
A65	2.67 ± 0.47		0.508		2.67 ± 0.47
E21	na	1610	1.67 ± 0.47	< 805	na	1610
E41	na		2.00a		na
E61	1.33 ± 0.7		2.00a		1.67 ± 0.47
E23	na	1610	1.33 ± 0.47	< 805	na	2415
E43	na		2.00a		0.33 ± 0.12
E63	1.67 ± 0.47		2.67 ± 0.47		na
E25	na	1610	na	1208	1.00 ± 0.94	805
E45	na		2.67 ± 0.47		na
E65	1.00a		na		0.83 ± 0.5
EE21	1.00a	< 1537	2.00	< 768.5	na	2305
EE41	1.00a		4.67 ± 0.47		1.00a
EE61	1.33 ± 0.47		4.33 ± 0.47		1.00a
EE23	1.00 ± 0.41	< 1537	3.67 ± 1.25	< 769	0.67 ± 0.14	769
EE43	1.00a		1.67 ± 0.47		1.33 ± 0.47
EE63	1.67 ± 0.47		2.33 ± 1.25		1.33 ± 0.47
EE25	na	< 769	2.33 ± 1.25	< 76	na	1153
EE45	2.00a		4.00a		1.67 ± 1.25
EE65	1.33 ± 0.47		3.00 ± 0.82		na
EEE21	0.06a	< 1440	0.33 ± 0.27	< 720	na	1440
EEE41	1.94 ± 0.63		2.78 ± 1.16		na
EEE61	1.61 ± 0.68		3.22 ± 0.16		0.33 ± 0.02
EEE23	na	< 720	2.00 ± 0.47	< 720	na	1080
EEE43	1.72 ± 0.72		4.67 ± 0.47		1.00 ± 0.16
EEE63	3.39 ± 0.47		3.78 ± 0.42		1.22 ± 0.31
EEE25	na	1080	1.56 ± 0.31	< 720	na	< 2160
EEE45	1.50 ± 0.54		3.33 ± 0.98		0.89 ± 0.16
EEE65	1.83 ± 0.57		2.22 ± 0.16		0.78 ± 0.16

na non active (no areas of inhibition reported).

^aidentical replicates.

E. coli Escherichia coli.

B. subtilis Bacillus subtilis spizizenii nakamura.

C. albicans Candida albicans.