Table 1 Chemical constitutes of VOCs and EOs of T. occidentalis
No | Components | Retention index | % Component in EO and VOC | Identificationa | ||
|---|---|---|---|---|---|---|
EOs from Shenyang Population | EOs from Kunming Population | VOCs from Shenyang Population | ||||
1 | ρ-Cymene | 1019 | 0.55 ± 0.01 | 0.07 ± 0.10 | 0.75 ± 0.20 | MS |
2 | γ-Terpinene | 1050 | 0.60 ± 0.02 | 0.07 ± 0.09 | – | MS |
3 | Fenchone | 1082 | 10.98 ± 0.13 | 6.35 ± 2.42 | 14.00 ± 3.46 | MS |
4 | (−)-α-Thujone | 1105 | 57.44 ± 0.43 | 69.22 ± 10.49 | 60.34 ± 5.58 | S, MS |
5 | (+)-β-Thujone | 1119 | 6.74 ± 0.04 | 3.46 ± 0.61 | 23.21 ± 19.62 | MS |
6 | Camphor | 1150 | 2.21 ± 0.02 | 1.56 ± 0.13 | 1.59 ± 0.43 | MS |
7 | (−)-Terpinen-4-ol | 1183 | 3.37 ± 0.01 | 4.65 ± 0.81 | – | MS |
8 | Pulegone | 1199 | 0.63 ± 0.02 | 0.84 ± 0.01 | – | MS |
9 | Fenchyl acetate | 1286 | 3.09 ± 0.04 | 0.28 ± 0.18 | 0.11 ± 012 | MS |
10 | Bornyl acetate | 1292 | 0.74 ± 0.01 | 0.85 ± 0.26 | – | MS |
11 | α-Terpinyl acetate | 1349 | 1.28 ± 0.01 | 0.60 ± 0.33 | – | MS |
12 | Oplopanone | 1749 | 0.51 ± 0.20 | 0.74 ± 0.35 | – | MS |
13 | Rimuene | 1922 | 4.59 ± 0.23 | 3.84 ± 4.14 | – | MS |
14 | (+)-Hibaene | 1966 | 7.28 ± 0.35 | 7.49 ± 7.79 | – | S, MS |