Table 1.
Composition of the essential oil of T. glabrescens.
| Component | RTa (min) | AILb | AIEc | T. glabrescens (%) |
|---|---|---|---|---|
| Monoterpene hydrocarbons | 11.07 | |||
| α-Thujene | 8.161 | 924.0 | 925.0 | 0.33 |
| α-Pinene | 8.400 | 932.0 | 932.1 | 0.29 |
| Camphene | 8.951 | 946.0 | 948.4 | 0.15 |
| Sabinene | 9.734 | 969.0 | 971.6 | 0.09 |
| β-Pinene | 9.897 | 974.0 | 976.5 | 0.10 |
| Myrcene | 10.320 | 988.0 | 989.0 | 0.59 |
| α-Phellandrene | 10.909 | 1002.0 | 1006.1 | 0.10 |
| 3-Carene | 10.984 | 1008.0 | 1007.9 | 0.03 |
| α-Terpinene | 11.294 | 1014.0 | 1016.6 | 0.60 |
| o-Cymene | 11.620 | 1022.0 | 1025.6 | 4.73 |
| Limonene | 11.751 | 1024.0 | 1029.2 | 0.81 |
| β-cis-Ocimene | 11.980 | 1032.0 | 1035.6 | 0.15 |
| β-trans-Ocimene | 12.362 | 1044.0 | 1046.1 | 0.18 |
| γ-Terpinene | 12.822 | 1054.0 | 1058.7 | 2.75 |
| Terpinolene | 13.767 | 1086.0 | 1084.8 | 0.17 |
| Oxygenated monoterpenes | 57.14 | |||
| Eucalyptol | 11.861 | 1026.0 | 1032.3 | 0.56 |
| trans-Linalool oxide | 13.828 | 1084.0 | 1086.5 | 0.03 |
| Linalool | 14.437 | 1095.0 | 1103.2 | 5.49 |
| α-Thujone | 14.603 | 1101.0 | 1107.8 | 0.38 |
| cis-p-Mentha-2,8-dienol | 15.697 | 1133.0 | 1138.4 | 0.01 |
| Borneol | 16.956 | 1165.0 | 1173.0 | 0.47 |
| 4-Terpineol | 17.249 | 1174.0 | 1181.1 | 0.47 |
| α-Terpineol | 17.790 | 1186.0 | 1196.1 | 0.79 |
| trans-Dihydrocarvone | 18.088 | 1200.0 | 1204.5 | 0.02 |
| Nerol | 18.842 | 1227.0 | 1226.3 | 1.18 |
| Isobornyl formate | 18.990 | 1235.0 | 1230.5 | 2.87 |
| Neral | 19.311 | 1235.0 | 1239.8 | 2.25 |
| Geraniol | 19.936 | 1249.0 | 1257.8 | 22.33 |
| Geranial | 20.396 | 1264.0 | 1271.0 | 0.50 |
| Bornyl acetate | 20.924 | 1287.0 | 1286.3 | 0.20 |
| Nerol acetate | 23.364 | 1359.0 | 1359.2 | 0.21 |
| Geranyl acetate | 24.244 | 1379.0 | 1385.8 | 19.38 |
| Sesquiterpene hydrocarbons | 14.56 | |||
| α-Cubebene | 23.065 | 1345.0 | 1350.2 | 5.51 |
| α-Copaene | 23.927 | 1374.0 | 1376.2 | 0.03 |
| β-Elemene | 24.409 | 1389.0 | 1390.7 | 0.09 |
| β-Caryophyllene | 25.384 | 1417.0 | 1421.3 | 1.04 |
| α-trans-Bergamotene | 25.770 | 1432.0 | 1433.6 | 0.05 |
| Aromadendrene | 25.952 | 1439.0 | 1439.4 | 0.12 |
| (Z)-β-Farnesene | 26.376 | 1440.0 | 1452.9 | 0.22 |
| α-Humulene | 26.487 | 1452.0 | 1456.4 | 0.13 |
| γ-Muurolene | 27.083 | 1478.0 | 1475.4 | 0.16 |
| Germacrene D | 27.302 | 1484.0 | 1482.4 | 1.57 |
| β-Selinene | 27.567 | 1489.0 | 1490.8 | 0.14 |
| Bicyclogermacrene | 27.734 | 1500.0 | 1496.2 | 1.01 |
| β-Bisabolene | 28.153 | 1505.0 | 1510.0 | 4.08 |
| γ-Cadinene | 28.258 | 1513.0 | 1513.6 | 0.11 |
| δ-Cadinene | 28.410 | 1522.0 | 1518.7 | 0.21 |
| β-Sesquiphellandrene | 28.563 | 1521.0 | 1523.9 | 0.09 |
| Oxygenated sesquiterpenes | 0.37 | |||
| Spathulenol | 30.140 | 1577.0 | 1577.0 | 0.29 |
| Caryophyllene oxide | 30.300 | 1582.0 | 1582.3 | 0.08 |
| Phenolic compounds | 14.00 | |||
| Thymol | 21.350 | 1289.0 | 1298.6 | 13.79 |
| Carvacrol | 21.499 | 1298.0 | 1303.0 | 0.19 |
| Eugenol | 23.155 | 1356.0 | 1352.9 | 0.02 |
| Others | 0.62 | |||
| trans-2-Hexenal | 5.987 | 846.0 | 850.2 | 0.03 |
| 1-Octen-3-ol | 10.010 | 974.0 | 979.8 | 0.45 |
| 3-Octanol | 10.596 | 988.0 | 997.2 | 0.14 |
|
| ||||
| Total | 97.76 | |||
aRT: retention time; bAIL: arithmetic (retention) index-literature data, and cAIE: arithmetic (retention) index experimentally determined on HP-5MS column.