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Research Article

Chemical Composition and Trypanocidal Activity of the Essential Oils from Hedychium coronarium J. Koenig (Zingiberaceae)

Table 1

Composition of the volatile oils of leaves and rhizomes of Hedychium coronarium from Brazil.


RI^a	RI^b	Compound	Percent in samples (%)
RI^a	RI^b	Compound	Leaves	Rhizome

921	n.d.	α-Thujene	—	0.1
928	1025	α-Pinene	0.2	1.9
941	1072	Camphene	—	0.3
963	1124	Sabinene	t	0.2
968	1115	β-Pinene	1.1	11.7
980	1159	Myrcene	—	0.4
997	1167	α-Phellandrene	—	0.1
1005	1150	-3-Carene	—	0.2
1008	n.d.	α-Terpinene	t	—
1012	1272	p-Cymene	0.2	1.4
1019	1204	Limonene*	t	2.4
1020	1212	1,8-Cineole*	0.7	31.7
1025	n.d.	Z-Ocimene	—	0.3
1046	1246	γ-Terpinene	—	0.5
1051	1457	E-Sabinene hydrate	—	0.5
1077	1284	Terpinolene	—	0.3
1082	1542	Z-Sabinene hydrate	0.2	0.4
1084	1539	Linalool	—	0.7
1105	n.d.	Fenchol	—	0.2
1106	1488	α-Campholenal	0.3	0.2
1109	n.d.	Z-p-Menth-2-en-1-ol	—	0.2
1119	1514	Camphor	—	0.1
1120	n.d.	Nopinone	t	—
1122	1645	E-Pinocarveol	1.3	0.4
1123	1645	Z-Verbenol	—	0.3
1129	1668	E-Verbenol	0.4	—
1136	1564	Pinocarvone	1.3	0.4
1145	1691	Borneol	t	3.1
1160	1594	Terpinene-4-ol	1.0	6.8
1164	1622	Myrtenal	1.4	0.1
1171	1687	α-Terpineol	0.6	12.0
1178	1780	Myrtenol	1.4	—
1186	n.d.	E-Piperitol	—	0.4
1191	n.d.	E-Carveol	—	0.2
1329	1688	α-Terpinyl acetate	—	1.2
1403	1840	α-Ionone	0.2	—
1407	1591	E-Caryophyllene	12.1	1.3
1440	1661	α-Humulene	0.8	0.2
1446	1659	E-β-Farnesene	t	0.2
1460	1927	β-Ionone	0.6	—
1469	n.d.	β-Selinene	—	0.2
1502	1752	γ-Cadinene	—	0.4
1559	1971	Caryophyllene oxide	43.9	1.1
1569	2078	Caryophylla-2(12),6(13)-dien-5-one	0.4	—
1582	2026	Humulene epoxide II	2.8	0.2
1607	2277	Caryophylla-2(12),6(13)-dien-5-beta-ol	1.8	—
1609	2283	Caryophylla-2(12),6(13)-dien-5-alpha-ol	7.7	—
1631	2270	Caryophylla-2(12),6-dien-5 alpha-ol	2.0	—
1645	2360	Caryophylla-2(12),6-dien-5 beta-ol	5.6	—
2091	n.d.	Coronarin E^#	—	14.1
		Monoterpene hydrocarbons	1.5	19.5
		Oxygen containing monoterpenes	8.6	58.8
		Sesquiterpene hydrocarbons	12.9	2.4
		Oxygen containing sesquiterpenes	64.2	1.3
		Other compounds	0.8	14.1
		Total identified	88.0	86.1

Compounds listed in the order of their elution on the SPB-1 column; t: traces; n.d.: not determined. Experimental retention indices on the SPB-1 column relative to C8–C24 n-alkanes. Experimental retention indices on the Supelcowax-10 column relative to C8 to C24 n-alkanes. Quantification based on peak areas from Supelcowax-10 chromatogram. Identity proposed on the basis of mass spectra: m/z (relative intensity) 284 [M⁺] (78), 147 (100), 81 (45), 55 (39), 41 (34), 91 (34), 95 (33), 137 (31), 69 (25), 77 (24), 131 (23), 148 (23), 117 (22), 129 (22), 79 (21), 115 (21).