Table 2.
Composition of the essential oil of laurel leaves from wild-grown trees in Greece and Georgia (mean ± SD).
| № | Components | RT, min | RIa | Content, (% of TICb) |
||
|---|---|---|---|---|---|---|
| Leaves from Greece | Leaves from Georgia | |||||
| 1. | α-Thujene | MH | 8.95 | 931 | 0.3 ± 0.0 | 0.7 ± 0.0 |
| 2. | α-Pinene | MH | 9.22 | 939 | 5.3 ± 0.04 | 5.5 ± 0.05 |
| 3. | Camphene | MH | 9.71 | 954 | 0.6 ± 0.0 | 0.2 ± 0.0 |
| 4. | Sabinene | MH | 10.58 | 971 | 7.9 ± 0.07 | 12.2 ± 0.09 |
| 5. | β-Pinene | MH | 10.72 | 979 | 3.6 ± 0.05 | 3.7 ± 0.03 |
| 6. | β-Myrcene | MH | 11.05 | 991 | 0.5 ± 0.0 | 1.3 ± 0.02 |
| 7. | α-Phellandrene | MH | 11.96 | 1003 | 0.3 ± 0.0 | 0.8 ± 0.0 |
| 8. | 1,8-Cineole | OM | 12.50 | 1032 | 30.8 ± 0.29 | 29.2 ± 0.25 |
| 9. | γ-Terpinene | MH | 13.28 | 1055 | 3.3 ± 0.04 | 0.6 ± 0.0 |
| 10. | Linalool | OM | 14.63 | 1096 | -c | 3.8 ± 0.03 |
| 11. | Terpinen-4-ol | OM | 17.09 | 1179 | 6.0 ± 0.05 | 1.8 ± 0.03 |
| 12. | α-Terpineol | OM | 17.56 | 1189 | 8.0 ± 0.10 | 1.7 ± 0.03 |
| 13. | Bornyl acetate | OM | 20.01 | 1269 | 1.2 ± 0.02 | - |
| 14. | α-Terpinyl acetate | OM | 21.87 | 1333 | 14.9 ± 0.13 | 22.6 ± 0.20 |
| 15. | Eugenol | PP | 21.98 | 1363 | 2.7 ± 0.04 | 0.8 ± 0.0 |
| 16. | Methyleugenol | PP | 23.17 | 1371 | 3.6 ± 0.05 | 8.1 ± 0.08 |
| 17. | β-Elemene | SH | 24.20 | 1390 | - | 0.1 ± 0.0 |
| 18. | β-Caryophyllene | SH | 24.49 | 1429 | 0.4 ± 0.0 | 0.4 ± 0.0 |
| 19. | Germacrene D | SH | 25.18 | 1484 | 0.3 ± 0.0 | 0.1 ± 0.0 |
| 20. | Elemicin | SH | 26.10 | 1522 | - | 1.1 ± 0.0 |
| 21. | Caryophyllene oxide | OS | 27.49 | 1574 | 1.8 ± 0.03 | 0.2 ± 0.0 |
| 22. | Spathulenol | OS | 27.61 | 1619 | 0.4 ± 0.0 | 0.2 ± 0.0 |
| 23. | β-Eudesmol | OS | 28.05 | 1642 | - | 0.7 ± 0.0 |
| 24. | n-Heptadecane | AH | 29.27 | 1700 | 0.2 ± 0.0 | 0.1 ± 0.0 |
| 25. | n-Heneicosane | AH | 32.50 | 2100 | 0.6 ± 0.0 | 0.2 ± 0.0 |
| 26. | Phytol | D | 32.86 | 2105 | 1.5 ± 0.02 | 0.1 ± 0.0 |
| 27. | n-Docosane | AH | 33.79 | 2200 | 0.7 ± 0.0 | 0.2 ± 0.0 |
| 28. | n-Tricosane | AH | 35.00 | 2300 | 0.4 ± 0.0 | 0.1 ± 0.0 |
| 29. | n-Tetracosane | AH | 36.13 | 2400 | 0.3 ± 0.0 | 0.1 ± 0.0 |
| 30. | n-Pentacosane | AH | 38.10 | 2500 | 0.5 ± 0.0 | 0.2 ± 0.0 |
| 31. | n-Hexacosane | AH | 39.88 | 2600 | 0.8 ± 0.0 | 0.3 ± 0.0 |
| 32. | n-Heptacosane | AH | 41.72 | 2700 | 0.9 ± 0.01 | 0.3 ± 0.0 |
| 33. | n-Octacosane | AH | 44.40 | 2800 | 0.3 ± 0.0 | 0.1 ± 0.0 |
| 34. | Squalene | T | 45.02 | 2817 | 0.9 ± 0.01 | 0.3 ± 0.0 |
| Aliphatic hydrocarbons (AH),% | 4.79 | 1.66 | ||||
| Monoterpene hydrocarbons (MH),% | 22.10 | 25.50 | ||||
| Oxygenated monoterpene (OM),% | 61.46 | 60.40 | ||||
| Sesquiterpene hydrocarbons (SH),% | 0.73 | 1.71 | ||||
| Oxygenated sesquiterpenes (OS),% | 2.18 | 0.39 | ||||
| Diterpenes (D),% | 1.49 | 0.11 | ||||
| Triterpenes (T),% | 0.90 | 0.30 | ||||
| Phenyl propanoids (PP),% | 6.37 | 9.93 | ||||
a
RI – retention (Kovat's) index.
b
TIC – total ion current; All data are presented as mean value ± standard deviation (n = 3).
c
nd – below 0.05% of TIC or not detected.