Table 1.
Chemical composition of the LEOs detected by GC-MS.
| RT* (min) | RI* | L.A.V. | L.A.S. | L.H.G. | ISO 3515:2002 [15] | ||
|---|---|---|---|---|---|---|---|
| Monoterpene hydrocarbons | 12.710 | 13.590 | 6.894 | ||||
| 1 | Allo-Ocimene | 3.385 | 850 | 0.45 ± 0.01 | 0.14 ± 0.02 | nd | |
| 2 | alpha- Terpinolene | 14.341 | 1088 | nd | 0.58 ± 0.01 | nd | |
| 3 | alpha-Pinene | 6.027 | 939 | 0.24 ± 0.01 | 0.77 ± 0.02 | nd | |
| 4 | alpha-Thujene | 5.739 | 930 | 0.12 ± 0.01 | 0.14 ± 0.01 | nd | |
| 5 | beta- Myrcene | 8.132 | 978 | nd | nd | 0.56 ± 0.01 | |
| 6 | beta-Phellandrene | 11.073 | 1025 | 0.18 ± 0.01 | 4.14 ± 0.02 | 0.22 ± 0.03 | Max 1% |
| 7 | beta-Pinene | 8.357 | 979 | 0.56 ± 0.02 | 0.83 ± 0.03 | nd | |
| 8 | Camphene | 6.667 | 954 | 0.12 ± 0.01 | 0.56 ± 0.03 | nd | |
| 9 | cis-beta-Ocimene | 11.393 | 1037 | 3.51 ± 0.01 | 1.04 ± 0.03 | 1.83 ± 0.02 | 0.5–6% |
| 10 | D-Limonene | 10.896 | 1020 | 0.32 ± 0.01 | 1.85 ± 0.03 | 0.34 ± 0.01 | Max 1% |
| 11 | gamma-Terpinene | 12.812 | 1059 | 0.16 ± 0.01 | 0.28 ± 0.01 | nd | |
| 12 | o-Cymene | 10.570 | 1019 | nd | nd | 0.15 ± 0.04 | |
| 13 | p-Cymene | 9.493 | 990 | 0.15 ± 0.01 | 0.20 ± 0.01 | nd | |
| 14 | Sabinene | 7.596 | 975 | 0.05 ± 0.01 | 0.23 ± 0.03 | nd | |
| 15 | trans-beta-Ocimene | 12.089 | 1050 | 6.90 ± 0.03 | 2.83 ± 0.02 | 3.77 ± 0.01 | 1–10% |
| Oxygenated Monoterpenes | 69.280 | 77.260 | 82.281 | ||||
| 16 | 1,8-Cineole | 11.145 | 1029 | 1.35 ± 0.08 | 8.50 ± 0.05 | 0.76 ± 0.03 | Max 3% |
| 17 | alpha-Terpineol | 19.463 | 1196 | 0.85 ± 0.01 | 0.63 ± 0.02 | 0.97 ± 0.01 | Max 2% |
| 18 | Camphor | 17.439 | 1146 | 0.29 ± 0.01 | 7.70 ± 0.09 | 0.20 ± 0.01 | |
| 19 | cis- Linalool oxide | 16.393 | 1123 | nd | nd | 0.22 ± 0.01 | |
| 20 | cis-Geraniol | 20.532 | 1232 | 0.08 ± 0.01 | 0.04 ± 0.01 | nd | |
| 21 | endo-Borneol | 18.586 | 11.69 | 0.49 ± 0.01 | 10.44 ± 0.04 | nd | |
| 22 | Lavandulol | 18.170 | 1168 | 1.04 ± 0.01 | 0.65 ± 0.03 | nd | |
| 23 | Lavandulyl acetate | 22.575 | 1292 | 4.42 ± 0.05 | 0.95 ± 0.01 | 5.38 ± 0.04 | Max 8% |
| 24 | Linalool | 15.460 | 1096 | 29.41 ± 0.06 | 35.59 ± 0.05 | 35.76 ± 0.02 | 20–43% |
| 25 | Linalyl acetate | 21.454 | 1258 | 26.81 ± 0.04 | 5.97 ± 0.02 | 35.31 ± 0.02 | 25–47% |
| 26 | Nerol acetate | 19.093 | 1180 | 0.22 ± 0.01 | 0.07 ± 0.01 | 0.35 ± 0.05 | |
| 28 | Terpinen-4-ol | 18.906 | 1177 | 4.32 ± 0.02 | 6.72 ± 0.03 | 3.28 ± 0.03 | Max 8% |
| Sesquiterpenes hydrocarbons SH | 11.830 | 3.720 | 6.312 | ||||
| 29 | alpha-Humulene | 27.712 | 1454 | 0.14 ± 0.01 | 0.10 ± 0.01 | nd | |
| 30 | alpha-Santalene | 28.870 | 1491 | nd | nd | 0.35 ± 0.05 | |
| 31 | beta-Caryophyllene | 26.726 | 1419 | 5.29 ± 0.05 | 0.75 ± 0.05 | 2.16 ± 0.02 | |
| 32 | cis-alpha-Bergamotene | 27.062 | 1414 | 0.14 ± 0.01 | 0.07 ± 0.02 | nd | |
| 33 | cis-beta-Farnesene | 27.590 | 1414 | 5.46 ± 0.07 | 2.33 ± 0.01 | 3.44 ± 0.03 | |
| 34 | gamma-Cadinene | 29.225 | 1512 | 0.11 ± 0.01 | 0.02 ± 0.01 | nd | |
| 35 | Germacrene D | 28.408 | 1481 | 0.69 ± 0.01 | 0.45 ± 0.01 | 0.35 ± 0.06 | |
| Oxygenated sesquiterpenes SO | 0.230 | 0.570 | 0.340 | ||||
| 36 | alpha-Bisabolol | 33.437 | 1687 | nd | 0.47 ± 0.02 | nd | |
| 37 | Caryophyllene oxide | 31.014 | 1583 | 0.23 ± 0.01 | 0.10 ± 0.01 | 0.34 ± 0.03 | |
| Oxygenated aliphatics OA | 3.080 | 1.290 | 4.163 | ||||
| 38 | 1-Hexanol | 4.125 | 873 | 0.07 ± 0.01 | 0.28 ± 0.01 | nd | |
| 39 | 1-Octen-3-yl-acetate | 15.659 | 1105 | 0.70 ± 0.02 | 0.01 ± 0.01 | 1.19 ± 0.03 | |
| 40 | 3-Octanol | 8.783 | 982 | 0.21 ± 0.01 | 0.01 ± 0.02 | nd | |
| 41 | 3-octanone | 9.493 | 990 | nd | nd | 0.99 ± 0.01 | Max 3% |
| 42 | Acetic acid, hexyl ester | 9.673 | 1010 | 1.00 ± 0.02 | 0.10 ± 0.03 | 0.62 ± 0.04 | |
| 43 | Butanoic acid, hexyl ester | 19.328 | 1194 | 0.82 ± 0.02 | 0.72 ± 0.02 | 0.57 ± 0.02 | |
| 44 | Hexyl tiglate | 24.045 | 1333 | 0.08 ± 0.02 | 0.15 ± 0.01 | 0.77 ± 0.02 | |
| 45 | Propanoic acid, 2-methyl-, butyl ester | 8.682 | 980 | 0.20 ± 0.01 | 0.02 ± 0.01 | nd |
nd—not detected; RT*—retention time, RI*—retention index (Kovat’s index); calculated retention indices are relative to n-alkanes (C10–C35).