Table 1.
Composition of the essential oil of fruits and leaves of P. dioica determined by gas chromatography coupled to mass spectrometry analysis (GC/MS) and Retention Index (KI).
| Compound Id (MS) | SI | KI exp | KI Adams | % (Fruits) | % (Leaves) |
|---|---|---|---|---|---|
| β-myrcene | 96 | 991.9 | 991 | 10.1 | 10.0 |
| α-terpinene | 94 | 1018.0 | 1017 | 0.1 | t |
| o-cymene | 93 | 1025.2 | 1026 | 0.1 | 0.1 |
| limonene | 95 | 1029.6 | 1029 | 0.4 | 0.4 |
| 1,8-cineole | 97 | 1032.8 | 1031 | 0.8 | 1.6 |
| (E)-β-ocimene | 96 | 1045.7 | 1050 | 1.3 | 1.8 |
| γ-terpinene | 95 | 1057.9 | 1060 | 0.2 | t |
| terpinolene | 95 | 1085.9 | 1089 | 0.3 | 0.2 |
| linalool | 96 | 1101.5 | 1097 | 1.6 | 0.8 |
| Terpinen-4-ol | 96 | 1180.8 | 1177 | 1.0 | 0.6 |
| α-terpineol | 95 | 1195.4 | 1189 | 0.1 | 0.2 |
| chavicol | 96 | 1251.4 | 1250 | 0.8 | 3.1 |
| eugenol | 97 | 1363.7 | 1359 | 65.9 | 71.4 |
| NI | --- | 1368.1 | 1369 | 0.1 | nd |
| α-ylangene | 94 | 1375.6 | 1375 | 1.2 | t |
| NI | --- | 1388.6 | --- | t | 0.2 |
| methyleugenol | 89 | 1401.7 | 1404 | 1.9 | 0.1 |
| (E)-caryophyllene | 95 | 1418.8 | 1419 | 9.1 | 5.2 |
| α-humulene | 95 | 1452.3 | 1455 | 1.2 | 1.1 |
| γ-muurolene | 92 | 1472.1 | 1480 | 0.2 | t |
| germacrene D | 93 | 1477.4 | 1485 | 0.4 | t |
| NI | --- | 1487.1 | -- | 0.1 | 0.5 |
| NI | --- | 1491.6 | --- | 0.2 | 0.6 |
| NI | --- | 1509.3 | --- | 0.1 | t |
| δ-amorphene | 90 | 1515.3 | 1512 | 0.8 | t |
| caryophyllene oxide | 91 | 1576.0 | 1583 | 0.4 | 0.7 |
| NI | --- | 1611.8 | --- | nd | 0.2 |
| NI | --- | 1650.3 | --- | 0.1 | 0.7 |
| NI | --- | 1943.8 | --- | 0.3 | nd |
| NI | --- | 1978.8 | --- | 0.1 | nd |
| 98.9 | 99.5 |
SI: Similarity Index (Standard Reference database National Institute of Standards and Technology (NIST) 11); KI: Retention Index; NI: not identified; nd: not detected; t: traces; (---): No correspondence of KI with the MS structure.