Table 3.
Chemical composition of Origanum syriacum essential oil.
| Soil type | A | B | C | D | E | F | |||
|---|---|---|---|---|---|---|---|---|---|
| EO composition (%) | NSNI | NSI | SNI | SI | |||||
| α-pinene | nd | nd | nd | nd | nd | 1.47 ± 0.03 a | 1.56 ± 0.03 a | 0.77 ± 0.06 ab | nd |
| camphene | nd | nd | 0.1 | nd | nd | 0.24 ± 0 a | 0.17 ± 0.002 a | nd | nd |
| sabinene | nd | nd | nd | nd | nd | 0.32 ± 0.01 a | 0.30 ± 0.06 a | 0.20 ± 0 c | 0.13 ± 0 d |
| β-pinene | nd | 0.5 | 0.2 | nd | nd | nd | nd | nd | nd |
| 1-octen-3-ol | nd | nd | 0.4 | nd | 0.4 | 0.20 ± 0.003 a | 0.30 ± 0.10 ab | 0.35 ± 0.04 b | 0.35 ± 0.04 b |
| myrcene | nd | 1.3 | 1.4 | nd | 1.7 | 0.87 ± 0.002 a | 1.64 ± 0.38 b | 0.32 ± 0 c | 0.32 ± 0 c |
| 3-octanol | nd | nd | nd | nd | nd | 0.17 ± 0.002 a | nd | 0.23 ± 0 c | 0.23 ± 0 c |
| α-phellandrene | nd | nd | nd | nd | nd | 0.43 ± 0.005 a | 0.70 ± 0.26 b | 0.24 ± 0 a | 0.24 ± 0 a |
| α-terpinene | 2.5 | 1.5 | 2.7 | 2.4 | 2.5 | 2.10 ± 0.03 a | 2.27 ± 0.46 a | 1.13 ± 0.06 b | 0.76 ± 0 b |
| p-cymene | 12.6 | 4.9 | 5.6 | 9.4 | 4.2 | 14.83 ± 0.47 a | 7.50 ± 1.35 b | 5.97 ± 0.06 c | 4.47 ± 0.12 d |
| β-phellandrene | nd | 0.7 | 0.4 | nd | 1.2 | nd | nd | nd | nd |
| trans-β-ocimene | nd | nd | 0.2 | nd | nd | nd | 0.2 ± 0a | nd | nd |
| γ-terpinene | 11.4 | 6.5 | 4.7 | 10.6 | 6.4 | 3.83 ± 0.08 a | 6.04 ± 0.77 b | 1.56 ± 0.03 c | 1.56 ± 0.03 c |
| cis-sabinene hydrate | nd | 0.6 | nd | nd | nd | 0.68 ± 0.06 ab | 0.55 ± 0.37 a | 0.80 ± 0 ab | 0.98 ± 0.10 a |
| terpinolene | nd | nd | 0.3 | nd | nd | 0.11 ± 0.01 ab | 0.15 ± 0.04 b | 0.09 ± 0 a | 0.09 ± 0 a |
| α-terpineol | nd | nd | nd | nd | nd | 0.26 ± 0.02 a | 0.08 ± 0.04 b | 0.10 ± 0 b | 0.10 ± 0 b |
| borneol | nd | nd | 0.1 | nd | nd | nd | nd | nd | nd |
| neo-allo-ocimene | nd | nd | nd | nd | nd | nd | nd | nd | nd |
| terpinen-4-ol | nd | nd | nd | nd | nd | nd | 0.16 ± 0.10 | nd | nd |
| thymol methyl ether | nd | nd | 0.2 | nd | nd | nd | nd | nd | nd |
| thymoquinone | nd | 0.5 | 1.2 | nd | nd | 0.81 ± 0.07 a | 0.29 ± 0 b | 1.20 ± 0 c | 1.70 ± 0 d |
| thymol | 54.3 | 46.5 | 47.8 | 56.3 | 51.2 | 54.48 ± 0.03 a | 37.80 ± 1.56 b | 48.03 ± 0.12 c | 43.83 ± 0.42 d |
| carvacrol | 10.3 | 28.5 | 27.4 | 14.1 | 25.9 | 11.46 ± 0.17 a | 35.84 ± 1.68 b | 30.13 ± 0.06 c | 32.47 ± 0.71 c |
| carvacryl acetate | nd | nd | 0.2 | nd | nd | nd | nd | nd | nd |
| β-caryophyllene | 2.1 | 1.3 | 2.5 | 3.1 | 1.2 | 2.14 ± 0 a | 1.93 ± 0.12 b | 1.73 ± 0.06 ac | 1.85 ± 0.05 c |
| α-bergamotene | nd | nd | nd | nd | nd | nd | 0.08 ± 0.01 | nd | nd |
| α-humulene | nd | 0.7 | 0.6 | nd | nd | 0.19 ± 0 a | 0.34 ± 0.02 b | 0.06 ± 0 c | 0.06 ± 0 c |
| germacrene D | nd | nd | 0.1 | nd | nd | 0.07 ± 0 a | 0.09 ± 0.01 b | 0.10 ± 0 b | 0.30 ± 0 c |
| γ-cadinene | nd | 0.6 | 0.1 | nd | nd | nd | 0.08 ± 0b | 0.10 ± 0 c | 0.10 ± 0 c |
| δ-cadinene | nd | nd | nd | nd | nd | nd | 0.06 ± 0b | 0.50 ± 0 c | 0.90 ± 0 d |
| delta-cadinene | nd | nd | nd | nd | nd | nd | nd | nd | nd |
| cis-alpha-bisabolene | nd | 0.3 | 0.2 | nd | nd | nd | nd | nd | nd |
| caryophyllene oxide | nd | 0.7 | 0.9 | nd | nd | 0.19 ± 0 a | 0.10 ± 0 b | 0.20 ± 0 c | 0.30 ± 0 d |
| humulene-1,2-epoxide | nd | 0.4 | 0.1 | nd | nd | nd | nd | nd | nd |
| α-cadinol | nd | nd | 0.5 | nd | nd | nd | 0.17± 0.13 | nd | nd |
| Total | 93.2 | 95.5 | 97.9 | 95.9 | 94.7 | 94.85 | 98.4 | 93.8 | 90.7 |
nd: not detected. Values are depicted as mean ± standard deviation. Different letters indicate significant differences at p < 0.05 as determined by Fisher’s test of EO chemical composition obtained on agricultural soil (soil F).