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.

Compounds^a/classes	RI^b	Plant species/relative content^c (%)
		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].