Table 1.
Composition of P. graveolens obtained by hydrodistillation (HD), Porapak Q (HSD-P) and peat (HSD-T).
| N° | Compound Groups | RI # | RI-lit ## | Content (%) ** | ||
|---|---|---|---|---|---|---|
| HD | HSD-T | HSD-P | ||||
| - | Monoterpenes hydrocarbons | - | - | 0.00 | 2.72 | 5.92 |
| 1 | α-pinene | 931 | 932 | 0.00 *a | 0.00 a | 4.14 ± 2.00 b |
| 2 | myrcene | 988 | 988 | 0.00 a | 0.00 a | 0.51 ± 0.02 b |
| 4 | limonene | 1028 | 1024 | 0.00 a | 2.72 ± 1.10 b | 0.00 a |
| 5 | (E)-β-ocimene | 1046 | 1044 | 0.00 a | 0.00 a | 1.27 ± 0.33 b |
| - | Oxygenated monoterpenes | - | - | 65.50 | 66.32 | 38.69 |
| 6 | linalool | 1099 | 1095 | 11.19 ± 1.12 b | 0.00 a | 0.68 ± 0.12 a |
| 7 | (Z)-rose oxide | 1109 | 1106 | 0.38 ± 0.05 b | 0.00 a | 2.47 ± 0.04 c |
| 8 | (E)-rose oxide | 1126 | 1122 | 0.00 a | 0.00 a | 0.71 ± 0.07 b |
| 9 | isomenthone | 1164 | 1158 | 1.27 ± 0.13 b | 0.00 a | 3.59 ± 0.52 c |
| 10 | citronellol | 1226 | 1223 | 27.63 ± 0.48 a | 28.06 ± 5.72 a | 16.88 ± 0.02 a |
| 11 | neral | 1238 | 1235 | 0.66 ± 0.06 b | 0.00 a | 0.00 a |
| 12 | geraniol | 1250 | 1249 | 23.07 ± 1.63 b | 38.26 ± 2.05 c | 13.63 ± 1.35 a |
| 13 | geranial | 1267 | 1264 | 1.30 ± 0.22 c | 0.00 a | 0.73 ± 0.03 b |
| - | Sesquiterpenes hydrocarbons | - | - | 9.70 | 15.25 | 37.95 |
| 16 | α-copaene | 1373 | 1374 | 0.00 a | 0.00 a | 1.36 ± 0.19 b |
| 17 | β-borbonene | 1382 | 1387 | 0.40 ± 0.04 b | 0.00 a | 2.76 ± 0.21 c |
| 18 | (E)-caryophyllene | 1418 | 1417 | 1.70 ± 0.25 b | 0.00 a | 4.76 ± 0.38 c |
| 19 | α-guaiene | 1434 | 1437 | 0.00 a | 0.00 a | 1.44 ± 0.02 b |
| 20 | 6,9-guaiadiene | 1439 | 1442 | 4.98 ± 0.62 a | 9.55 ± 3.54 b | 16.98 ± 0.40 c |
| 21 | cis-muurola-3,5-diene | 1448 | 1448 | 0.00 a | 0.00 a | 0.95 ± 0.01 b |
| 22 | α−humulene | 1454 | 1452 | 0.40 ± 0.06 a | 0.00 a | 0.49 ± 0.43 a |
| 24 | γ-muurolene | 1479 | 1478 | 1.16 ± 0.24 a | 4.32 ± 1.64 b | 6.64 ± 0.32 b |
| 25 | germacrene D | 1484 | 1484 | 0.00 a | 0.00 a | 0.10 ± 0.18 a |
| 26 | bicyclogermacrene | 1493 | 1500 | 0.44 ± 0.08 a | 0.00 a | 2.47 ± 0.32 b |
| 27 | δ-amorphene | 1516 | 1511 | 0.62 ± 0.15 a | 1.38 ± 1.27 a | 0.00a |
| - | Esters | - | - | 18.77 | 13.74 | 15.24 |
| 3 | (3Z)-hexenyl acetate | 1005 | 1004 | 0.00 a | 0.00 a | 1.51 ± 0.20 b |
| 14 | citronellyl formate | 1272 | 1271 | 9.41 ± 0.35 b | 1.92 ± 1.77 a | 6.95 ± 0.75 b |
| 15 | geranyl formate | 1297 | 1298 | 3.92 ± 0.15 b | 0.00 a | 4.99 ± 0.29 c |
| 23 | linalool isovalerate | 1468 | 1466 | 0.96 ± 0.03 b | 0.00 a | 0.00 a |
| 28 | geranyl butanoate | 1554 | 1562 | 2.01 ± 0.12 a | 3.30 ± 3.60 a | 0.63 ± 0.55 a |
| 29 | 2-phenyl ethyl tiglate | 1582 | 1584 | 0.50 ± 0.45 a | 0.00 a | 0.23 ± 0.40 a |
| 30 | (E)- citronellyl tiglate | 1662 | 1666 | 0.00 a | 0.31 ± 0.54 a | 0.00 a |
| 31 | geranyl tiglate | 1694 | 1696 | 1.97 ± 0.11 a | 8.21 ± 2.25 b | 0.93 ± 0.03 a |
| Total | 93.97 | 98.03 | 97.80 | |||
Means followed by the same lowercase letter in the line do not differ between themselves by the Tukey test (p < 0.05). * Values are mean of three independent experiments. ** Percentages obtained by flame ionization (FID) peak area normalization. # Retention index relative to C9–C19 n-alkanes on the DB-5MS column. ## Retention index from the literature Adams (2007).