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. 2020 Apr 22;9(4):544. doi: 10.3390/plants9040544

Table 1.

Chemical composition of Baeckea frutescens leaf essential oil from central Vietnam.

RI(calc) RI(db) Compounds % RI(calc) RI(db) Compounds %
922 927 α-Thujene 1.8 1370 1375 α-Copaene 0.2
930 933 α-Pinene 11.1 1398 1405 (Z)-Caryophyllene tr
943 948 α-Fenchene tr 1401 1406 α-Gurjunene tr
945 953 Camphene 0.1 1415 1417 (E)-Caryophyllene 7.1
968 972 Sabinene tr 1433 1438 Aromadendrene 0.1
975 978 β-Pinene 19.0 1452 1454 α-Humulene 9.9
984 991 Myrcene 0.3 1455 1457 allo-Aromadendrene 0.1
1000 1004 p-Mentha-1(7),8-diene tr 1466 1472 trans-Cadina-1(6),4-diene 0.1
1003 1007 α-Phellandrene 0.1 1469 1478 γ-Muurolene tr
1005 1009 δ-3-Carene tr 1483 1487 β-Selinene 0.1
1013 1018 α-Terpinene 0.3 1485 1490 γ-Amorphene tr
1021 1025 p-Cymene 8.9 1490 1501 α-Selinene 0.1
1025 1030 Limonene 1.7 1492 1497 α-Muurolene 0.1
1029 1030 1,8-Cineole 10.1 1500 1507 Geranyl isobutyrate 0.1
1030 1034 (Z)-β-Ocimene tr 1506 1512 γ-Cadinene 0.2
1041 1045 (E)-β-Ocimene tr 1509 1519 Cubebol tr
1055 1057 γ-Terpinene 11.7 1512 1518 δ-Cadinene 0.9
1065 1069 cis-Linalool oxide (furanoid) tr 1515 1519 trans-Calamenene 0.1
1081 1086 Terpinolene 0.7 1516 1521 Zonarene 0.1
1085 1093 p-Cymenene tr 1526 1536 trans-Cadine-1,4-diene 0.1
1096 1101 Linalool 4.4 1530 1538 α-Cadinene tr
1098 1104 Hotrienol tr 1534 1544 α-Calacorene tr
1114 1119 endo-Fenchol 0.1 1541 1549 α-Elemol tr
1133 1139 Nopinone tr 1545 1551 (Z)-Caryphyllene oxide 0.1
1136 1141 trans-Pinocarveol tr 1554 1562 (E)-Nerolidol 0.5
1150 1156 Camphene hydrate tr 1570 1576 Spathulenol tr
1165 1170 δ-Terpineol 0.1 1576 1587 Caryophyllene oxide 2.0
1167 1170 Borneol 0.1 1579 1590 Globulol 0.1
1169 1171 cis-Linalool oxide (pyranoid) tr 1592 1592 Humulene epoxide I 0.3
1173 1179 2-Isopropenyl-5-methyl-4-hexenal 0.1 1598 1605 Ledol 0.1
1176 1180 Terpinen-4-ol 0.7 1604 1613 Humulene epoxide II 2.4
1178 1188 Naphthalene tr 1619 1624 Muurola-4,10(14)-dien-1β-ol tr
1181 1186 p-Cymen-8-ol tr 1621 1628 1-epi-Cubenol 0.3
1190 1195 α-Terpineol 1.7 1625 1611 Germacra-1(10),5-dien-4α-ol 0.3
1198 1203 p-Cumenol tr 1626 1632 Humulenol II 0.3
1219 1229 Nerol tr 1630 1636 Caryophylla-4(12),8(13)-dien-5β-ol 0.1
1234 1240 Ascaridole tr 1634 1643 τ-Cadinol 0.2
1244 1244 Geraniol 0.1 1636 1645 τ-Muurolol 0.1
1261 1268 Geranial tr 1639 1651 α-Muurolol (= δ-Cadinol) 0.1
1268 1275 trans-Ascaridol glycol tr 1648 1652 α-Eudesmol 0.5
1274 1284 p-Cymen-7-ol tr 1841 1837 Homoisobaeckeol 0.5
1284 1289 Thymol tr Monoterpene hydrocarbons 55.6
1291 1399 Carvacrol tr Oxygenated monoterpenoids 17.5
1298 1306 Isoascaridole tr Sesquiterpene hydrocarbons 19.1
1314 1320 Methyl geranate 0.1 Oxygenated sesquiterpenoids 7.3
1341 1349 α-Cubebene tr Benzenoid aromatics 0.5
1344 1357 Eugenol tr Others tr
Total identified 100.0

RI(calc): Retention indices determined with respect to a homologous series of n-alkanes on a ZB-5ms column. RI(db): Retention indices obtained from the databases [21,22,23]. tr: trace (< 0.05%).