Table 3.
Chemical composition and retention indices of the chemical constituents of the EOCW.
| RT (min) a | Compounds b | (%) c | RI d |
|---|---|---|---|
| 6.4 | 3-Hexanone, 2-methyl- | 0.01 | 871 |
| 11.0 | 5-Hepten-2-one, 6-methyl- | 0.03 | 987 |
| 11.1 | β-Myrcene | 0.10 | 990 |
| 12.7 | Limonene | 3.21 | 1027 |
| 13.9 | Melonal | 0.16 | 1053 |
| 15.4 | Terpinolene | 0.05 | 1087 |
| 16.0 | Linalool | 1.17 | 1101 |
| 16.5 | cis-Rose oxide | 0.05 | 1110 |
| 17.2 | trans-Rose oxide | 0.03 | 1127 |
| 18.1 | Isopulegol | 1.55 | 1145 |
| 18.7 | Citronellal | 32.61 | 1159 |
| 19.2 | Isopulegol | 0.10 | 1170 |
| 19.6 | 4-Terpineol | 0.07 | 1178 |
| 19.8 | Carane, 4,5-epoxy-, trans | 0.06 | 1183 |
| 20.2 | α-Terpineol | 0.09 | 1191 |
| 20.3 | cis-4-Decenal | 0.05 | 1194 |
| 20.8 | Decanal | 0.20 | 1206 |
| 22.1 | Citronellol | 14.37 | 1233 |
| 22.5 | Neral | 1.32 | 1242 |
| 23.4 | Geraniol | 22.83 | 1262 |
| 23.8 | Geranial | 1.56 | 1272 |
| 25.9 | Citronellic acid | 0.26 | 1320 |
| 27.4 | Citronellol acetate | 0.93 | 1354 |
| 27.6 | Phenol, 4-allyl-2-methoxy- | 0.94 | 1359 |
| 28.7 | Geranyl acetate | 1.14 | 1384 |
| 29.0 | β-Element | 0.56 | 1392 |
| 30.1 | Caryophyllene | 0.04 | 1419 |
| 31.5 | Humulene | 0.07 | 1454 |
| 32.5 | Naphthalene, 1,2,4a,5,6,8a-hexahydro-4,7-dimethyl-1-(1-methylethyl)- | 0.07 | 1477 |
| 32.7 | Germacrene D | 0.97 | 1482 |
| 33.4 | α-Muurolene | 0.30 | 1501 |
| 33.6 | δ-Guaiene | 0.56 | 1506 |
| 34.0 | α-Amorphene | 0.24 | 1514 |
| 34.4 | β-Cadinene | 1.16 | 1524 |
| 35.4 | o-Menth-8-ene-4-methanol, α,α-dimethyl-1-vinyl-, (1S,2S,4R)-(−)- | 3.64 | 1552 |
| 36.4 | trans-Sesquisabinene hydrate | 1.02 | 1577 |
| 36.7 | Caryophyllene oxide | 0.14 | 1584 |
| 38.1 | Eudesmol | 0.49 | 1621 |
| 38.4 | α-Acorenol | 0.46 | 1629 |
| 38.5 | α-Eudesmol | 1.26 | 1633 |
| 38.9 | α-Muurolol | 1.79 | 1644 |
| 39.0 | Cadinol | 0.45 | 1648 |
| 39.2 | β-Eudesmol | 0.67 | 1652 |
| 39.4 | α-Cadinol | 2.95 | 1657 |
| 41.5 | (Z,E)-Farnesol | 0.04 | 1716 |
| 41.7 | (E,E)-Farnesol | 0.21 | 1723 |
a RT, retention time; b compounds listed in order of elution from an DB-5MS column; c percentage based on FID peak area normalization; d RI, retention index, calculated using the Van den Dool and Kratz (1963) equation [29].