Research Article
Chemical Composition and Antibacterial Activity of the Lippia origanoides Kunth Essential Oil from the Carajás National Forest, Brazil
Table 1
Volatile constituents identified in L. origanoides Kunth essential oil.
| RT | RIC | RIL | Constituents | Molecular formula | (%) |
| 5.60 | 925 | 924 | α-Thujene | C10 H16 | 0.49 | 5.84 | 932 | 932 | α-Pinene | C10 H16 | 7.17 | 6.89 | 971 | 969 | Sabinene | C10 H16 | 3.69 | 7.03 | 976 | 974 | ß-Pinene | C10 H16 | 3.74 | 7.31 | 987 | 988 | Myrcene | C10 H16 | 3.73 | 8.35 | 1017 | 1014 | α-Terpinene | C10 H16 | 1.22 | 8.56 | 1024 | 1020 | p-Cymene | C10 H14 | 8.53 | 8.76 | 1032 | 1026 | 1,8-Cineole | C10H18O | 35.04 | 9.79 | 1057 | 1054 | γ-Terpinene | C10 H16 | 7.16 | 15.23 | 1197 | 1186 | α-Terpineol | C10H18O | 4.36 | 17.20 | 1228 | 1232 | Thymol, methyl ether | C11H16O | 5.58 | 17.55 | 1242 | 1239 | Carvone | C10 H14O | 0.12 | 20.15 | 1298 | 1298 | Carvacrol | C10 H14O | 11.32 | 20.20 | 1321 | 1289 | p-Cymen-7-ol | C10 H14O | 0.10 | 22.42 | 1356 | 1349 | Thymol acetate | C12H16O2 | 0.05 | 23.51 | 1373 | 1374 | α-Copaene | C15H24 | 0.80 | 25.10 | 1413 | 1410 | α-Cedrene | C15H24 | 0.07 | 25.38 | 1416 | 1417 | (E)-Caryophyllene | C15H24 | 3.15 | 26.09 | 1420 | 1434 | γ-Elemene | C15H24 | 0.25 | 26.12 | 1430 | 1432 | α-trans-Bergamotene | C15H24 | 0.36 | 26.84 | 1452 | 1452 | α-Humulene | C15H24 | 0.23 | 27.98 | 1478 | 1479 | ar-Curcumene | C15H22 | 0.18 | 28.60 | 1492 | 1493 | α-Zingiberene | C15H24 | 0.46 | 28.86 | 1495 | 1500 | α-Muurolene | C15H24 | 0.10 | 29.04 | 1505 | 1505 | ß-Bisabolene | C15H24 | 0.14 | 29.42 | 1507 | 1514 | (Z)-γ-Bisabolene | C15H24 | 0.07 | 19.80 | 1515 | 1522 | σ-Cadinene | C15H24 | 0.52 | 32.18 | 1578 | 1582 | Caryophyllene oxide | C15H24O | 0.24 | Hydrocarbon monoterpenes | | | 35.7 | Oxygenated monoterpenes | | | 56.5 | Hydrocarbon sesquiterpenes | | | 6.33 | Oxygenated sesquiterpenes | | | 0.24 | Total | | | 98.87 |
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RT: retention time; RI C: retention index (on DB-5MS column); RI L: retention index from literature (Adams [ 28]). |