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. 2021 Mar 4;10(3):482. doi: 10.3390/plants10030482

Table 3.

Chemical composition of Monarda punctata essential oils growing wild in south Alabama.

Aerial Parts Essential Oil
RIcalc RIdb Compound #1, % ED, (+):(−) #2, % ED, (+):(−)
923 925 α-Thujene 0.1 100:0 0.7 68.5:31.5
930 932 α-Pinene tr 0.2 83.8:16.2
945 950 Camphene --- 0.1 100:0
957 959 Benzaldehyde --- tr
970 971 Sabinene tr tr
974 978 β-Pinene tr 0.1 62.7:37.3
975 974 1-Octen-3-ol 1.8 1.8
980 983 3-Octanone --- tr
986 989 Myrcene 0.3 1.1
995 996 3-Octanol 0.1 0.1
1001 1004 p-Mentha-1(7),8-diene --- tr
1004 1006 α-Phellandrene 0.1 100:0 0.2 94.6:5.4
1006 1008 δ-3-Carene tr 0.1 100:0
1014 1017 α-Terpinene 1.3 100:0 3.0 100:0
1016 1022 m-Cymene --- tr
1024 1024 p-Cymene 15.3 19.8
1025 1026 2-Acetyl-3-methylfuran --- tr
1026 1030 Limonene 0.4 50.2:49.8 0.5 0:100
1027 1029 β-Phellandrene 0.2 0.2 0:100
1028 1030 1,8-Cineole 0.4 0.1
1039 1043 Phenylacetaldehyde --- tr
1055 1057 γ-Terpinene 2.0 9.7
1066 1069 cis-Sabinene hydrate 0.6 100:0 0.7 97.9:2.1
1076 1079 1-Nonen-3-ol --- tr
1082 1086 Terpinolene 0.1 0.1
1087 1091 p-Cymenene 0.1 0.1
1095 1099 Linalool --- tr 70.1:29.9
1098 1101 trans-Sabinene hydrate 0.2 100:0 0.1 83.2:16.8
1100 1104 Nonanal --- 0.1
1104 1107 1-Octen-3-yl acetate 0.2 0.4
1145 1145 trans-Verbenol --- tr
1161 1158 Menthone 0.3 ---
1168 1170 Borneol 0.1 0:100 tr 0:100
1177 1180 Terpinen-4-ol 0.8 58.7:41.3 0.6 66.1:33.9
1182 1183 m-Cymen-8-ol --- 0.1
1184 1186 p-Cymen-8-ol 0.5 0.5
1191 1197 Methyl chavicol (= Estragole) 0.8 ---
1193 1195 α-Terpineol --- 0.1 100:0
1202 1206 Decanal --- 0.1
1224 1224 Thymol methyl ether --- tr
1235 1238 Carvacrol methyl ether 1.1 1.0
1239 1242 Cumin aldehyde --- 0.1
1247 1250 Thymoquinone 2.0 0.2
1289 1289 Thymol 61.8 47.9
1293 1291 p-Cymen-7-ol --- 0.2
1296 1296 Carvacrol 4.5 4.1
1306 1309 4-Vinylguaicol --- tr
1347 1356 Eugenol 0.7 0.3
1370 1375 α-Copaene --- tr
1378 1382 β-Bourbonene --- tr
1384 1390 trans-β-Elemene --- tr
1415 1417 (E)-β-Caryophyllene 1.6 100:0 1.2 100:0
1424 1430 β-Copaene --- tr
1427 1430 trans-α-Bergamotene 1.2 0.7
1449 1453 α-Humulene --- tr
1469 1475 γ-Muurolene --- 0.1
1476 1480 Germacrene D 0.7 100:0 0.4 100:0
1479 1483 trans-β-Bergamotene 0.2 0.1
1480 1485 γ-Thujaplicin --- 0.1
1482 1489 β-Selinene --- tr
1489 1492 α-Selinene --- tr
1492 1497 α-Muurolene --- tr
1506 1512 γ-Cadinene --- tr
1512 1518 δ-Cadinene --- 0.1
1517 1523 β-Sesquiphellandrene --- 0.1
1546 1549 Thymohydroquinone 0.3 2.5
1576 1577 Caryophyllene oxide 0.2 0.2
1633 1639 cis-Guaia-3,9-dien-11-ol 0.2 0.1
1648 1655 α-Cadinol --- tr
1834 1841 Phytone --- tr
Monoterpene hydrocarbons 19.9 35.7
Oxygenated monoterpenoids 72.5 58.3
Sesquiterpene hydrocarbons 3.7 2.7
Oxygenated sesquiterpenoids 0.4 0.4
Benzenoid aromatics 1.5 0.3
Others 2.1 2.4
Total identified 100.0 99.8

RIcalc = Retention indices determined with respect to a homologous series of n-alkanes on a ZB-5ms column. RIdb = Retention indices from the databases [7,8,9,10]. #1 = Plant sample #1. #2 = Plant sample #2. --- = Not observed. ED = Enantiomeric distribution (dextrorotatory enantiomer: levorotatory enantiomer). tr = Trace (<0.05%).