. 2019 Jul 23;8(7):277. doi: 10.3390/foods8070277

Table 1.

The effect of agar disk diffusion method and MIC values of the investigated essential oils (36 °C, 24 h), and the MIC values of essential oils (15 °C, 72 h).

Essential Oil/Bioactive Compounds	Bacteria Strain	Zone of Growth Inhibition [mm]	MIC Value [μL/mL] 36 °C, 24 h	MIC Value [μL/mL] 15 °C, 72 h	MIC Value [mg/mL] 36 °C, 24 h	MIC Value [mg/mL] 15 °C, 72 h	The Degree of Inhibition of Bacterial Growth [%] 36 °C, 24 h	The Degree of Inhibition of Bacterial Growth [%] 15 °C, 72 h
Bergamot	P. orientalis P49	5.0 ^c ± 0.6	8.3 ^a ± 0.4	90.9 ^a ± 2.7	7.5 ^a ± 0.5	82.5 ^a ± 3.1	33.6 ^b ± 2.1	41.9 ^d ± 2.6
Bergamot	P. orientalis P110	0 ^a	-	-	-	-	0 ^a	0 ^a
Nutmeg	P. orientalis P49	0 ^a	-	-	-	-	0 ^a	0 ^a
Nutmeg	P. orientalis P110	0 ^a	-	-	-	-	0 ^a	0 ^a
bitter orange	P. orientalis P49	9.1 ^d ± 0.9	8.3 ^a ± 0.3	90.9 ^a ± 4.6	6.9 ^a ± 0.2	76.3 ^a ± 2.2	62.7 ^c ± 1.4	2.7 ^b ± 1.5
bitter orange	P. orientalis P110	0 ^a	-	-	-	-	0 ^a	0 ^a
Lime	P. orientalis P49	0 ^a	-	-	-	-	0 ^a	0 ^a
Lime	P. orientalis P110	19.2 ^d ± 1.0	90.9 ^b ± 7.6	166.7 ^a ± 8.9	81.5 ^b ± 6.5	149.5 ^a ± 10.2	85.0 ^d ± 0.2	25.7 ^c ± 2.4
Lemongrass	P. orientalis P49	11.1 ^d ± 1.1	8.3 ^a ± 0.4	90.9 ^a ± 8.3	7.6 ^a ± 0.2	83.7 ^a ± 7.6	48.5 ^c ± 1.8	30.3 ^c ± 3.1
Lemongrass	P. orientalis P110	18.1 ^d ± 1.9	8.3 ^a ± 0.6	166.7 ^a ± 11.2	7.6 ^a ± 0.3	153.5 ^a ± 9.8	62.7 ^c ± 5.7	13.4 ^b ± 4.5
Juniper	P. orientalis P49	2.0 ^b ± 0.3	90.9 ^b ± 5.1	-	76.0 ^b ± 8.1	-	40.7 ^c ± 2.5	0 ^a
Juniper	P. orientalis P110	2.1 ^b ± 0.4	90.9 ^b ± 4.3	-	76.0 ^b ± 9.3	-	54.9 ^c ± 1.5	0 ^a
black pepper	P. orientalis P49	2.0 ^b ± 0.2	90.9 ^b ± 5.9	-	78.7 ^b ± 2.6	-	49.9 ^c ± 0.7	0 ^a
black pepper	P. orientalis P110	0 ^a	8.3 ^a ± 0.2	-	7.2 ^a ± 0.3	-	64.5 ^c ± 2.9	0 ^a
Rosemary	P. orientalis P49	0 ^a	-	-	-	-	0 ^a	0 ^a
Rosemary	P. orientalis P110	7.0 ^c ± 1.0	90.9 ^b ± 7.1	166.7 ^a ± 14.2	80.1 ^b ± 6.3	146.9 ^a ± 10.8	64.5 ^c ± 2.6	11.3 ^b ± 3.7
St. John’s wort	P. orientalis P49	2.0 ^b ± 0.3	-	-	-	-	0 ^a	0 ^a
St. John’s wort	P. orientalis P110	2.0 ^b ± 0.1	-	-	-	-	0 ^a	0 ^a
Linalool	P. orientalis P49	0 ^a	-	-	-	-	0 ^a	0 ^a
Linalool	P. orientalis P110	8.0 ^c ± 1.6	90.9 ^b ± 8.8	-	78.5 ^b ± 3.7	-	46.8 ^b ± 8.9	0 ^a
Citral	P. orientalis P49	0 ^a	-	-	-	-	0 ^a	0 ^a
Citral	P. orientalis P110	0 ^a	-	-	-	-	0 ^a	0 ^a

(-)—MIC > 90.9 µL/mL (36 °C, 24 h) or 166.7 µL/mL (15 °C, 72 h). ^a–d Distinct letters within the same column indicate significant difference in the same experiment and the same bacteria strain (p < 0.05).