Chemical Composition and Larvicidal Activity of Essential Oils Extracted from Brazilian Legal Amazon Plants against Aedes aegypti L. (Diptera: Culicidae)
Table 2
Main constituents of the essential oils (of plants obtained from the Brazilian Legal Amazon) tested against Aedes aegypti L. (Diptera: Culicidae) larvae.
Compoundsa/classes
RIb
Plant species/relative contentc (%)
Epi
Me
Pm
Sc
Lg
α-Pinene
931
3.54
—
—
—
—
Sabinene
977
—
—
—
—
2.72
β-Pinene
977
7.08
—
—
—
6.22
Myrcene
989
—
—
1.32
—
2.2
α-Phellandrene
1003
—
—
—
12.8
—
α-Terpinene
1017
—
—
—
—
0.92
p-Cymene
1024
—
—
—
1.5
1.35
Limonene
1029
1.27
—
—
4.9
—
1,8-Cineole
1034
—
—
0.66
—
56.16
(E)-β-Ocimene
1046
5.52
—
—
—
—
γ-Terpinene
1059
—
—
—
—
3.55
α-Terpinolene
1085
—
—
—
0.41
—
Linalool
1100
—
—
0.78
—
—
trans-Pinocarveol
1140
—
—
—
—
3.42
δ-Terpineol
1167
—
—
—
—
1.02
Terpinen-4-ol
1180
—
—
—
—
3.83
α-Terpineol
1186
0.43
—
—
—
12.09
Geraniol
1256
—
—
—
0.49
—
(E)-Linalool oxide acetate
1286
—
—
—
0.46
—
δ-Elemene
1335
3.49
—
—
4.9
—
α-Copaene
1378
1.5
1.85
—
0.38
—
β-Bourbonene
1386
0.57
—
—
—
—
β-Elemene
1390
4.79
2.41
—
3.29
—
α-Gurjunene
1412
—
0.52
0.43
—
—
(E)-β-Caryophyllene
1419
16.46
10.55
26.05
3.17
1.12
β-Gurjunene
1432
—
4.71
—
3.36
—
γ-Elemene
1434
17.48
5.38
—
—
—
α-Guaiene
1438
—
—
—
1.94
—
Aromadendrene
1440
2.29
1.06
1.4
—
—
Guaiadiene-6,9
1444
—
—
—
9.23
—
trans-Muurola-3,5-diene
1450
—
—
—
1.47
—
α-Humulene
1455
2.18
—
23.92
0.69
1.49
allo-Aromadendrene
1462
—
2.64
—
—
—
Bicyclogermacrene
1470
8.11
13.26
—
5.11
—
γ-Muurolene
1480
0.91
—
0.63
—
—
Germacrene D
1482
5.64
26.79
—
—
—
γ-Patchoulene
1484
—
—
—
28.63
—
β-Selinene
1487
1.23
—
1.95
1.6
—
α-Selinene
1496
—
—
1.25
—
—
Viridiflorene
1497
1.42
—
—
—
—
α-Muurolene
1501
—
—
—
3.76
—
δ-Cadinene
1523
2.95
9.63
—
0.72
—
Zonarene
1526
—
—
3.53
—
—
α-Cadinene
1539
—
1.22
—
—
—
Selina-3,7(11)-diene
1542
—
—
2.05
0.57
—
Germacrene B
1558
1.99
—
—
—
—
Spathulenol
1578
2.5
3.25
—
1.33
—
Caryophyllene oxide
1581
—
—
10.09
—
—
Globulol
1585
—
4.16
—
—
—
Viridiflorol
1590
2.33
—
2.19
5.02
—
Humulene epoxide II
1601
—
—
6.37
—
—
epi-Cubenol
1626
—
—
—
2.14
—
Caryophylledienol II
1631
—
—
5.66
—
—
epi-α-Cadinol
1639
—
—
2.73
—
—
τ-Muurolol
1640
0.81
2.26
—
0.36
—
α-Cadinol
1654
1.05
2.25
3.81
1.09
—
Monoterpene hydrocarbons
17.41
—
1.32
19.61
16.96
Oxygenated monoterpenes
0.43
—
1.44
0.95
81.07
Sesquiterpene hydrocarbons
71.01
80.02
61.21
68.87
2.61
Oxygenated sesquiterpenes
6.69
11.92
30.85
9.94
—
Total
95.54
91.94
94.82
99.37
99.64
Compounds listed in order of elution on the DB-5ms column. bRetention indices (RIs) experimentally determined against n-alkanes by using the DB-5ms column. cContent expressed as percentages obtained by integration of the GC peak area. RI: retention index; Epi: Eugenia piauhiensis Vellaff.; Me: Myrcia erythroxylon O. Berg; Pm: Psidium myrsinites DC.; Sc: Siparuna camporum (Tul.) A. DC.; Lg: Lippia gracilis Schauer. Conditions of analysis: gas chromatograph associated with mass spectrometer THERMO DSQ II; chemical constituents identified by comparison of the mass spectra obtained with published spectra [21, 22].