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

Table 2.

Chemical compositions of the leaf and fruit essential oils of Callistemon citrinus from central Vietnam.

RI(calc) RI(db) Compound % Composition
Leaf Fruit
793 791 2,4-Dimethyl-3-pentanone 0.3 tr
912 913 Isobutyl isobutyrate 0.2 0.3
924 927 α-Thujene 0.3 0.8
932 933 α-Pinene 18.1 35.1
946 948 α-Fenchene tr tr
948 953 Camphene 0.1 0.1
971 972 Sabinene tr tr
976 978 β-Pinene 0.6 0.7
987 989 Myrcene 0.1 0.5
999 1000 δ-2-Carene tr 0.1
1004 1004 p-Mentha-1(7),8-diene 0.1 0.1
1006 1007 α-Phellandrene 0.4 1.6
1008 1009 δ-3-Carene 0.1 0.1
1011 1014 Isoamyl isobutyrate 0.2 0.3
1014 1018 α-Terpinene --- 0.2
1014 1015 2-Methylbutyl isobutyrate tr 0.1
1021 1022 Ethyl 3-methylbut-3-enyl carbonate 0.1 0.1
1024 1025 p-Cymene 2.2 4.6
1029 1030 Limonene 5.4 8.2
1030 1032 1,8-cineole 56.3 32.4
1032 1034 (Z)-β-Ocimene --- 0.1
1044 1046 (E)-β-Ocimene tr 0.2
1051 1050 Prenyl isobutyrate tr 0.1
1057 1057 γ-Terpinene 0.3 1.0
1084 1087 Terpinolene 0.1 0.6
1088 1093 p-Cymenene --- 0.1
1099 1101 Linalool 0.5 1.4
1119 1119 endo-Fenchol 0.1 0.1
1140 1141 trans-Pinocarveol 0.3 tr
1155 1156 Camphene hydrate tr tr
1163 1164 Pinocarvone tr ---
1170 1170 δ-Terpineol 0.2 0.1
1170 1165 iso-Borneol --- 0.1
1173 1173 Borneol 0.1 0.1
1179 1179 2-Isopropenyl-5-methyl-4-hexenal 0.1 tr
1180 1180 Terpinen-4-ol 0.5 0.6
1185 1188 Naphthalene 0.1 ---
1186 1189 p-Cymen-8-ol --- tr
1188 1187 trans-p-Mentha-1(7),8-dien-2-ol 0.1 ---
1194 1195 α-Terpineol 11.2 5.8
1202 1202 cis-Sabinol --- 0.1
1219 1223 trans-Carveol 0.1 tr
1230 1230 cis-p-Mentha-1(7),8-dien-2-ol tr ---
1249 1249 Geraniol 0.5 0.6
1298 1300 Carvacrol tr 0.1
1351 1356 Eugenol 0.1 0.1
1385 1390 β-Elemene --- 0.1
1392 1395 Phenylethyl isobutyrate tr tr
1417 1417 (E)-Caryophyllene 0.1 0.2
1436 1438 Aromadendrene 0.1 0.2
1452 1454 α-Humulene --- 0.1
1458 1458 allo-Aromadendrene 0.1 0.1
1477 1480 Germacrene D --- tr
1487 1491 Viridiflorene --- 0.1
1500 1503 (E,E)-α-Farnesene --- 0.1
1505 1507 Geranyl isobutyrate 0.1 ---
1505 1508 β-Bisabolene --- 0.1
1514 1518 δ-Cadinene --- tr
1535 1539 Flavesone 0.3 0.3
1557 1561 (E)-Nerolidol --- 0.1
1575 1578 Spathulenol 0.4 1.3
1580 1577 Caryophyllene oxide tr 0.1
1584 1590 Globulol 0.1 0.2
1593 1594 Viridiflorol 0.1 0.1
1595 1599 Cubeban-11-ol tr 0.1
1609 1614 iso-Leptospermone tr 0.1
1619 1626 Leptospermone tr 0.2
1629 1629 iso-Spathulenol --- 0.2
Monoterpene hydrocarbons 27.6 53.8
Oxygenated monoterpenoids 69.9 41.3
Sesquiterpene hydrocarbons 0.2 0.8
Oxygenated sesquiterpenoids 0.5 2.0
Others 1.4 1.4
Total identified 99.6 99.4

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%).