Table 2.
Chemical composition of volatile fractions from S. atropurpurea L. stem, identified by GC-FID/MS.
| Compound | L.R.I. | Concentration (%) | |
|---|---|---|---|
| VF1 | VF2 | ||
| 1,8-cineole | 1034 | 8.1 | 33.8 |
| cis-linalool oxide (furanoid) | 1076 | 1.6 | 3.0 |
| trans-linalool oxide (furanoid) | 1090 | n.d. | 2.4 |
| Linalool | 1101 | 4.9 | 3.3 |
| α-terpineol | 1191 | 2.3 | n.d. |
| Dihydrolinalylacetate | 1275 | n.d. | 2.5 |
| 2-hydroxy-5-methylacetophenone | 1315 | 4.4 | 2.9 |
| Eugenol | 1358 | 3.6 | n.d. |
| (E)-β-damascenone | 1382 | 6.4 | 3.0 |
| Tetradecene | 1393 | 24.1 | 5.7 |
| (Z)-jasmone | 1395 | 5.6 | n.d. |
| β-caryophyllene | 1419 | n.d. | 2.2 |
| (E)-geranylacetone | 1455 | 9.1 | 3.0 |
| (E)-β-ionone | 1488 | 20.7 | 5.9 |
| Dihydroactinidiolide | 1536 | n.d. | 26.1 |
| Oxygenated monoterpenes | - | 16.9 | 45.0 |
| Sesquiterpene hydrocarbons | - | 0.0 | 2.2 |
| Apocarotenes | - | 36.2 | 38.0 |
| Phenyl propanoids | - | 3.6 | 0.0 |
| Other derivatives | - | 34.1 | 8.6 |
| % peaks identified | - | 90.8 | 93.8 |
| Total yield% (mg 100 g−1) | - | 0.032 | 0.012 |
The dominant compounds are indicated in bold. L.R.I.: linear retention index reported in the literature using the same GC stationary phase. VF1; volatile fraction extracted by hexane, VF2; volatile fraction extracted by chloroform. n.d.: not detected.