Antimicrobial Efficiency of Essential Oils from Traditional Medicinal Plants of Asir Region, Saudi Arabia, over Drug Resistant Isolates

Table 6

Chemical composition of Origanum vulgare essential oil determined by GC and GC-MS.

No	Name of compounds	RT	Area
1	Cyclopropane dodecanoic acid, 2-octyl-, methyl ester	4.26	0.01
2	Propane, 2,2-diethoxy	4.73	0.19
3	Alpha-Thujene	10.64	0.55
4	cis-Ocimene	10.88	2.74
5	Camphene	11.51	0.32
6	Docosahexaenoic acid,1,2,3-propanetriyl ester	11.64	0.08
7	Sabinene	12.46	17.17
8	Alpha-Myrcene	13.14	3.44
9	Alpha-Pinene	13.59	0.01
10	Geraniol formate (CAS)	13.71	0.02
11	Alpha-Humulene (CAS)	14.09	10.57
12	p-Cymene	14.42	1.35
13	Alpha-Phellandrene	14.57	9.18
14	Gamma-Terpinene	15.58	12.99
15	Cis-trans Sabinene hydrate	16.19	6.13
16	Alpha-Terpinolene	16.49	2.31
17	1-Terpineol	17.34	19.68
18	2-Cyclohexen-1-ol,1-methyl-4-(1-methylethyl)-,trans	18.01	0.43
19	2-Cyclohexen-1-ol,1-methyl-4-(1-methylethyl)-,cis-	18.63	0.09
20	5-Caranol, trans, trans-(+)-	18.92	0.12
21	p-Menthone	19.20	0.07
22	3-Cyclohexen-1-ol,4-methyl-1-(1-methylethyl)-(CAS)	19.77	5.64
23	Trans-Sabinene hydrate	20.36	0.18
24	Pulegone	21.57	0.10
25	Cis-sabinene hydrate acetate	21.72	6.13
26	Alpha-Fenchyl acetate	22.72	0.02
27	Caryophyllene	26.44	0.24
28	Gamma-Elemene	28.44	0.08
29	Hahnfett	52.86	0.01
30	Lucenin 2	53.30	0.01
31	Glycerine-1,3-dimyristate, 2-O-trimethylsilyl	53.55	0.05
32	Spirost-8-en-11-one,3-hydroxy-,(3á,5à,14á,20á,22á,25R)-	53.63	0.04
33	Gibberellin A19 Methyl Ester	53.72	0.02
34	Glycerine-1,3-dimyristate,2-O-trimethylsilyl	54.82	0.00
35	Quercetin 7,3′,4′-Trimethoxy	54.86	0.01
36	3-acetoxy-24-phenyl-4,4,14-trimethyl	56.31	0.01