Table 1.
Essential oil composition of O. campechianum.
| No. | Component 1 | Area% 2 | AI exp 3 | AI lit 4 |
|---|---|---|---|---|
| 1 | α-pinene | 0.3 | 929 | 932 |
| 2 | camphene | 0.1 | 944 | 946 |
| 3 | sabinene | 0.8 | 967 | 969 |
| 4 | β-pinene | 1.2 | 973 | 974 |
| 5 | myrcene | 2.3 | 987 | 988 |
| 6 | 1,8-cineole | 4.4 | 1028 | 1026 |
| 7 | cis-β-ocimene | 1.3 | 1030 | 1032 |
| 8 | trans-ocimene | 0.4 | 1046 | 1044 |
| 9 | linalool | 1.6 | 1101 | 1095 |
| 11 | allo-ocimene | 1.7 | 1126 | 1128 |
| 12 | mentha-1,5 dien-8 ol | 0.3 | 1170 | 1166 |
| 13 | α-terpineol | 0.4 | 1189 | 1186 |
| 14 | neral | 0.1 | 1238 | 1235 |
| 15 | δ-elemene | 4.2 | 1338 | 1335 |
| 16 | eugenol | 43.6 | 1359 | 1356 |
| 17 | α-copaene | 0.5 | 137 | 1374 |
| 19 | β-elemene | 8.1 | 1388 | 1389 |
| 20 | β-caryophyllene | 10.8 | 1410 | 1416 |
| 21 | γ-elemene | 0.3 | 1427 | 1434 |
| 22 | trans-α-bergamotene | 0.6 | 1431 | 1435 |
| 23 | α-caryophyllene | 1.9 | 1451 | 1452 |
| 24 | allo-aromadendrene | 1.4 | 1455 | 1458 |
| 25 | germacrene D | 0.4 | 1477 | 1484 |
| 26 | β-selinene | 1.1 | 1484 | 1489 |
| 27 | viridiflorene | 0.4 | 1489 | 1496 |
| 27 | bicyclogermacrene | 2.9 | 1490 | 1500 |
| 28 | germacrene A | 1.0 | 1500 | 1508 |
| 29 | germacrene B | 1.6 | 1556 | 1559 |
| 30 | spathulenol | 1.5 | 1576 | 1577 |
| 31 | caryophyllene oxide | 1.9 | 1581 | 1582 |
| Total identified | 97.1 |
1 Components are listed in order of elution and their nomenclature is in accordance of the NIST (National Institute of Standards and Technology) library. 2 Relative peak areas, calculated by GC-FID. 3 AI exp: linear retention indices calculated on Varian VF-5 ms column. 4 AI lit: linear retention indices [21]. The main compounds were in bold