Table 2.
Major components of essential oils from Lippia alba as identified by Gas chromatography- mass spectrometry.
| Components | Ik DB-5 | Essential oils from Lippia alba (%) | ||||
|---|---|---|---|---|---|---|
|
|
||||||
| VEsrW01E | VEmcT02E | VEboW02E* | VEbgW03H | VEbgW01E* | ||
| 6-Methyl-5-hepten-2-one | 986 | 1.9 | - | 4.1 | 2.6 | - |
| Limonene | 1034–1041 | 22.4 | 37.0 | 3.2 | 3.0 | 25.8 |
| Linalool | 1100–1102 | 0.6 | 0.7 | 2.0 | 1.4 | 0.9 |
| Neral | 1239–1248 | 10.4 | - | 21.5 | 19.5 | - |
| Geraniol | 1249–1258 | - | - | 3.9 | 9.5 | - |
| Carvone | 1251–1258 | 25.3 | 27.9 | - | - | 49.6 |
| Piperitone | 1260–1264 | 1.1 | 0.1 | - | - | 3.2 |
| Geranial | 1271–1277 | 10.4 | - | 28.9 | 23.3 | - |
| Piperitenone | 1343–1349 | 2.2 | 1.6 | - | - | 6.1 |
| Geranyl acetate | 1373–1379 | 0.4 | 0 | 1.6 | 3.6 | 0 |
| β-Elemene | 1385–1398 | 1.7 | 0.1 | 0.9 | 2.2 | 0 |
| β-Bourbonene | 1391 | - | 5.3 | - | - | 2.4 |
| trans-β-Caryophyllene | 1430–1436 | 2.4 | 1.4 | 7.3 | 6.6 | 0.1 |
| β-Guaiene | 1442–1447 | 1.3 | - | 1.8 | 1.1 | - |
| trans-β-Farnesene | 1451–1456 | 0.2 | 1.8 | 0.1 | 0.4 | 0.7 |
| Bicyclosesquifelandrene | 1490–1496 | 8.0 | 12.3 | 1.9 | 3.0 | 1.2 |
| Caryophyllene oxide | 1596–1599 | 0.4 | - | 2.3 | 1.3 | - |
Ik DB-5: Kovats retention index for DB-5.
*
The composition of these essential oils has been previously reported (Jaramillo-Colorado et al., 2011).