Table 2.

Chemical composition of EO from citronella leaves.

Number	Class	Constituents	RTa min	%
1	Monoterpene	Camphene	6.144	0.15
2		Methyl heptenone	6.760	0.917
3		β-myrcene	6.83	0.048
4		Octanal	7.024	0.062
5		Limonene	7.488	0.135
6		2,6-Dimethyl-5-heptenal	7.876	0.128
7		4-Nonanone	8.179	0.987
8		(–)-Linalool	8.621	1.175
9		Citronellal	9.479	8.991
10		trans-Caran-4-one	9.905	1.11
11		Dacanal	10.24	0.406
12		β-Citronellol	10.607	4.991
13		cis-Citral	10.833	15.276
14		Geraniol	11.065	36.333
15		trans-Citral	11.27	17.881
16		Citronellyl acetate	12.312	0.371
17		Eugenol	12.441	0.276
18		Geranyl acetate	12.722	1.841
19		Neral dimethyl acetal	13.169	2.328
20		Caryophyllene	13.358	0.767
21		Citral diethyl acetal	13.45	4.603
22	Sesquiterpene	Humulene	13.795	0.113
23		(–)-Germacrene D	14.13	0.085
24		α-Cadinene	14.518	0.188
25		Cadinene	14.605	0.069
26		Elemol	14.923	0.081
27	Oxygenated sesquiterpene	Caryophyllene oxide	15.403	0.377
28		(–)-α-Cadinol	16.034	0.034
	Monoterpene			98.776
	Sesquiterpene			0.536
	Oxygenated sesquiterpene			0.411
	Total			99.72