Table 2.

Antibacterial activity of essential oil from Salvia officinalis L.

Gram staining	Bacteria	Inhibition diameter (mm)		MIC† (μg/mL)	MBC‡ (μg/mL)
		EO	Gentamycin
Positive	Enterococcus faecalis ATCC 29212	16.6 ± 0.23	17.4 ± 0.95	658.6 ± 37.2	869.6 ± 95.8
	Micrococcus luteus ATCC 4698	9.5 ± 0.47	19.8 ± 0.89	128.3 ± 9.7	121.2 ± 8.1
	Salmonella enterica ATCC 35664	14.2 ± 0.51	18.2 ± 0.51	1,398.1 ± 50.7	1,387.4 ± 161.8
	Bacillus subtilis ATCC 6633	24.8 ± 0.11	20.9 ± 0.42	62.2 ± 3.9	120.3 ± 7.6
	Streptococcus aureus ATCC 29213	23.5 ± 0.57	17.7 ± 0.55	123.5 ± 5.7	153 ± 6.2
Negative	Escherichia coli ATCC 8739	25.2 ± 0.41	21.1 ± 0.25	350.2 ± 6.4	386 ± 8.3
	Klebsiella pneumoniae ATCC 10031	22.6 ± 0.73	18.7 ± 0.93	450.3 ± 56.6	557.1 ± 96.7
	Shigella sonnei ATCC 29930	15.4 ± 0.17	18.2 ± 0.63	968.4 ± 120.6	995.2 ± 145.6
	Agrobacterium tumefaciens ATCC 23308	8.7 ± 0.28	19.1 ± 0.31	650.7 ± 40.8	1,225.2 ± 100.9
	Pseudomonas aeruginosa ATCC 9027	21.3 ± 0.34	18.2 ± 0.54	323.4 ± 69.5	394.8 ± 86.8

EO, essential oil from the leaves of S. officinalis.

^†MIC, minimum inhibitory concentration.

^‡MBC, minimum bactericidal concentration.

Values are presented as means of 3 measurements ± standard deviation.