. 2014 Jul 21;3(3):142–152. doi: 10.1016/j.imr.2014.07.001

Table 3.

Antibacterial activity of different concentrations of Zataria multiflora Boiss essential oil against three bacteria using disk diffusion method (zone of inhibition)^*

Zataria multiflora (μg/disk)	Staphylococcus aureus Mean ± SE			Klebsiella pneumonia Mean ± SE			Pseudomonas aeruginosa Mean ± SE
	24	48	72	24	48	72	24	48	72
0.08	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a
0.16	0.60 ± 0.23^a	0.87 ± 0.23^a	0.87 ± 0.23^a	0.53 ± 0.14^a,b	0.67 ± 0.14^a	0.67 ± 0.14^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a
0.31	1.93 ± 0.29^b	2.37 ± 0.24^b	2.37 ± 0.24^b	1.23 ± 0.12^b,c	1.43 ± 0.27^b	1.67 ± 0.24^b	1.17 ± 0.17^b	1.33 ± 0.17^b	1.33 ± 0.17^b
0.63	3.56 ± 0.29^c	3.73 ± 0.18^c	3.73 ± 0.18^c	2.10 ± 0.10^c	2.40 ± 0.15^c	2.77 ± 0.14^c	2.37 ± 0.12^c	2.53 ± 0.09^c	2.70 ± 0.06^c
1.25	5.62 ± 0.06^d	5.87 ± 0.09^d	5.87 ± 0.09^d	3.40 ± 0.00^d	4.00 ± 0.00^d	4.00 ± 0.00^d	4.27 ± 0.18^d	4.47 ± 0.22^d	4.47 ± 0.22^d
2.5	7.81 ± 0.13^e	7.83 ± 0.12^e	7.87 ± 0.13^e	5.44 ± 0.02^e	6.47 ± 0.03^e	6.77 ± 0.03^e	6.43 ± 0.12^e	6.58 ± 0.09^e	6.65 ± 0.05^e
5	10.10 ± 0.45^f	10.40 ± 0.45^f	8.11 ± 0.38^f	7.90 ± 0.40^f	8.27 ± 0.37^f	8.44 ± 0.34^f	8.56 ± 0.23^f	8.73 ± 0.12^f	8.73 ± 0.12^f
10	11.54 ± 0.12^g	11.64 ± 0.07^g	11.80 ± 0.06^g	10.60 ± 0.24^g	11.29 ± 0.05^g	11.35 ± 0.05^g	10.35 ± 0.26^g	10.51 ± 0.13^g	10.63 ± 0.12^g
20	13.57 ± 0.12^h	14.50 ± 0.26^h	14.73 ± 0.13^h	14.30 ± 0.26^h	14.50 ± 0.29^h	14.70 ± 0.26^h	11.97 ± 0.20^h	12.30 ± 0.15^h	12.30 ± 0.15^h
40	16.43 ± 0.09ⁱ	16.93 ± 0.12ⁱ	17.30 ± 0.15ⁱ	16.70 ± 0.11ⁱ	16.93 ± 0.07ⁱ	17.00 ± 0.11ⁱ	13.27 ± 0.13ⁱ	13.43 ± 0.18ⁱ	13.53 ± 0.22ⁱ
60	20.37 ± 0.20^j	20.93 ± 0.07^j	21.27 ± 0.14^j	20.80 ± 0.30^j	21.67 ± 0.09^j	21.77 ± 0.09^j	15.23 ± 0.14^j	15.63 ± 0.14^j	15.63 ± 0.14^j
80	24.67 ± 0.03^k	24.97 ± 0.03^k	25.20 ± 0.15^k	24.43 ± 0.12^j	25.13 ± 0.13^k	25.33 ± 0.20^k	17.20 ± 0.11^k	17.60 ± 0.30^k	17.83 ± 0.23^k
100	27.80 ± 0.20^l	28.67 ± 0.33^l	28.67 ± 0.33^l	27.83 ± 0.12^k	28.10 ± 0.21^l	28.10 ± 0.21^l	19.90 ± 0.27^l	20.40 ± 0.23^l	20.53 ± 0.18^l

Different letters on every column represent meaningful difference (p < 0.0001).

SE, standard error.