Table 2.

The main phytochemical constituents of Cymbopogon citratus (D.C.) Stapf essential oil identified by GC-MS analysis.

Name	R. Time	m/z	Area	Height	Concentration
.apha, -Thujene	6.006	TIC	64,743	10,639	0.072
Bicyclo [3.1.0]hex -2-ene, 2-methyl-5-(methy)	6.466	TIC	44,0792	41891	0.487
Camphene	7.511	TIC	1,129,013	136,064	1.247
.beta. –Myrcene	10.179	TIC	1273,812	163,422	1.407
Limonene	11.283	TIC	2693,725	336,122	2.976
Ocimene (E)-	12.219	TIC	284,397	45,290	0.314
Ocimene (Z)-	12.712	TIC	164,002	27,220	0.181
4 –Nonanone	14.808	TIC	873,286	143,765	0.965
5-Hepten-2-one, 6-methyl-	14.972	TIC	2,307,111	355,154	2.549
Phenol, 3-methyl-5-(1-methylethyl)-, Methylca	16.779	TIC	34,226	8564	0.038
2-Propenoic acid, 2-methyl-, ethenyl ester	17.253	TIC	40,657	7065	0.045
1,6-Heptadiene, 2-methyl-	18.953	TIC	192,620	27,349	0.213
d -Norbomanone	19.136	TIC	100,006	17,289	0.110
Copaene	19.610	TIC	61072	10,909	0.067
2,2-Dimethylocta-3, 4-dienal	19.757	TIC	265,918	29,040	0.294
Linalool	20.796	TIC	2,900,499	181,609	3.204
Cyclopropane, 1,1-dimethyl-2-(2-methyl-2-pro)	21.310	TIC	798,964	80,284	0.883
Cyclopentanecarboxylic acid, 2 methyl-3-meth	21.991	TIC	191,346	35,596	0.211
1,7 -Octadiene, 3-methylene-	22.149	TIC	76,920	13,393	0.085
Caryophyllene	22.483	TIC	2,021,644	265,029	2.233
Estragole	23.676	TIC	231,331	26,376	0.256
beta Citral (Z)-	24.025	TIC	26,167,607	3,452,865	28.910
n-menth-1-en-8-ol	24.953	TIC	808,078	74,951	0.893
alpha Citral (E)-	25.203	TIC	33,701,032	4,346,928	37.233
Geraninol acetate, (Z)-	25.698	TIC	5,267,532	966,974	5.820
delta Cadinene	26.157	TIC	106,187	21,685	0.117
gamma Muurolene	26.286	TIC	722,205	113,718	0.798
Caryophyllene oxide	31.129	TIC	180,807	32,715	0.200
3-Buten-2-ol, 2,3-dimethyl-	31.600	TIC	97,200	22,430	0.107
Geraniol cis(Z)-	32.427	TIC	847,203	40,371	0.936
trans Geraniol (E)-	33.245	TIC	6,074,456	249,366	6.711
Geranic acid	37.190	TIC	145,179	28,938	0.160
Isoeugenol	37.636	TIC	251,368	51,836	0.278