. 2016 Nov 7;2016:3694901. doi: 10.1155/2016/3694901

Table 2.

Range finding study of the O. majorana essential oil using the TA100 strain.

Substance	Concentration	Without metabolic activation (−S9)		With metabolic activation (+S9)
Substance	Concentration	Rev/plate^a	MI^b	Rev/plate^a	MI^b
NC^a	—	141.33 ± 17.56	—	148.00 ± 4.58	—
Essential oil	0.008 µL/mL	105.67 ± 22.01	0.75	145.33 ± 18.15	0.98
	0.04 µL/mL	53.00 ± 9.64	0.38^b	127.00 ± 19.47	0.86
	0.2 µL/mL	33.00 ± 23.07	0.23^b	72.67 ± 13.05	0.49^b
	1 µL/mL	0.33 ± 0.58	0.00	0.33 ± 0.58	0.00
	5 µL/mL	0.00 ± 0.00	0.00	0.00 ± 0.00	0.00

^aNegative control: DMSO (10 µL). ^bCytotoxicity.