Table 1.
Effect of lavender species and storage hours on essential oil composition (area%).
| Treatment | Constituents | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3-Octanone | α-Phellandrene | Limonene | 1,8-Cineole | (Z)-β-Ocimene | Linalool | Isophorone | Terpinen-4-ol | Cryptone | Linalyl Propionate | Linalyl Acetate | Lavandulyl Acetate | Neryl Acetate | Caryophyllene | Delta-Cadinene | Caryophyllene Oxide | |
| RI (Expt.) | 982 | 1004 | 1025 | 1027 | 1030 | 1097 | 1125 | 1173 | 1187 | 1223 | 1250 | 1279 | 1350 | 1409 | 1547 | 1578 |
| RI (Lit.) | 979 | 1002 | 1024 | 1026 | 1032 | 1095 | 1118 | 1174 | 1183 | 1214 | 1254 | 1288 | 1359 | 1408 | 1522 | 1582 |
| L. angustifolia | ||||||||||||||||
| Drying hours | ||||||||||||||||
| 0 h | 2.5 | 0.3 | 0.6 | 0.0 | 3.3 | 41.9 | 0.0 | 0.5 | 2.6 | 5.4 | 0.6 | 30.8 | 3.0 | 2.9 | 0.6 | 0.0 |
| 24 h | 2.4 | 0.0 | 1.0 | 0.0 | 4.6 | 45.0 | 0.0 | 0.9 | 3.0 | 9.9 | 1.5 | 14.7 | 4.5 | 6.3 | 0.8 | 0.0 |
| 48 h | 2.4 | 0.2 | 0.6 | 2.7 | 1.4 | 35.1 | 0.0 | 2.2 | 6.3 | 0.7 | 34.2 | 3.6 | 3.5 | 1.0 | 0.0 | 0.0 |
| 72 h | 2.4 | 0.0 | 0.8 | 1.4 | 3.0 | 40.0 | 0.0 | 1.5 | 4.7 | 5.3 | 17.9 | 9.1 | 4.0 | 3.6 | 0.0 | 0.0 |
| Mean | 2.4 | 0.1 | 0.8 | 1.0 | 3.1 | 40.5 | 0.0 | 1.3 | 4.2 | 5.3 | 13.6 | 14.5 | 3.8 | 3.4 | 0.3 | 0.0 |
| L. × intermedia | ||||||||||||||||
| Drying hours | ||||||||||||||||
| 0 h | 2.3 | 0.3 | 1.0 | 0.0 | 13.5 | 38.0 | 10.7 | 4.7 | 0.6 | 16.9 | 3.7 | 2.8 | 0.6 | 0.0 | 0.0 | 0.9 |
| 24 h | 2.5 | 0.5 | 1.0 | 0.0 | 15.6 | 33.0 | 10.2 | 3.8 | 0.0 | 21.9 | 3.0 | 1.6 | 0.9 | 0.0 | 0.0 | 0.3 |
| 48 h | 1.9 | 0.0 | 0.8 | 0.0 | 11.5 | 32.9 | 0.0 | 7.3 | 4.6 | 9.0 | 17.9 | 3.5 | 2.4 | 0.0 | 0.0 | 1.7 |
| 72 h | 2.0 | 0.0 | 0.9 | 0.0 | 12.2 | 30.7 | 0.0 | 7.3 | 4.2 | 8.6 | 18.4 | 3.4 | 1.5 | 0.0 | 0.0 | 1.7 |
| Mean | 2.2 | 0.2 | 0.9 | 0.0 | 13.2 | 33.6 | 5.2 | 5.8 | 2.3 | 14.1 | 10.8 | 2.8 | 1.3 | 0.0 | 0.0 | 1.1 |
| Mean (DH) | ||||||||||||||||
| 0 h | 2.4 | 0.3 | 0.8 | 0.0 | 8.4 | 39.9 | 5.4 | 2.6 | 1.6 | 11.2 | 2.2 | 16.8 | 1.8 | 1.4 | 0.3 | 0.4 |
| 24 h | 2.4 | 0.2 | 1.0 | 0.0 | 10.1 | 39.0 | 5.1 | 2.4 | 1.5 | 15.9 | 2.3 | 8.1 | 2.7 | 3.1 | 0.4 | 0.2 |
| 48 h | 2.1 | 0.1 | 0.7 | 1.4 | 6.4 | 34.0 | 0.0 | 4.7 | 5.5 | 4.9 | 26.1 | 3.5 | 2.9 | 0.5 | 0.0 | 0.8 |
| 72 h | 2.2 | 0.0 | 0.8 | 0.7 | 7.6 | 35.4 | 0.0 | 4.4 | 4.4 | 6.9 | 18.1 | 6.3 | 2.8 | 1.8 | 0.0 | 0.8 |
| LSD (p = 0.05) | ||||||||||||||||
| LS | 0.1 | 0.0 | 0.0 | 0.0 | 0.2 | 0.2 | 0.0 | 0.1 | 0.1 | 0.2 | 0.5 | 0.3 | 0.1 | 0.3 | 0.3 | 0.2 |
| DH | 0.1 | 0.0 | 0.0 | 0.0 | 0.2 | 0.3 | 0.0 | 0.1 | 0.2 | 0.2 | 0.7 | 0.4 | 0.2 | 0.4 | NS | 0.2 |
| LS × DH | 0.1 | 0.0 | 0.0 | 0.0 | 0.4 | 0.4 | 0.0 | 0.2 | 0.3 | 0.3 | 0.9 | 0.6 | 0.3 | 0.6 | NS | 0.3 |
LSD: least significant difference (p = 0.05); LS: Lavandula species; DH: drying hours; Exp. RI (GC): experimental retention indices (gas chromatography); Exp. RI (GC/MS): experimental retention indices (gas chromatography/mass spectrometry).