Origanum dictamnus Oil Vapour Suppresses the Development of Grey Mould in Eggplant Fruit In Vitro

Table 2

The chemical and percentage composition of the major components from the essential oil of Origanum dictamnus.

Number	Compound	R.I.^b	Retention time	Percentage (%) composition
1	a-Thujene	930	9.507	0.68
2	a-Pinene^a	939	9.746	0.56
3	Sabinene	975	11.253	0.06
4	b-Pinene^a	979	11.353	0.10
5	1-Octen-3-ol	979	11.530	0.10
6	b-Myrcene	990	11.933	1.12
7	a-Phellandrene	1002	12.402	0.10
8	a-Terpinene	1017	12.855	1.48
9	p-cymene^a	1024	13.163	12.65
10	Limonene^a	1029	13.302	0.37
11	g-Terpinene^a	1059	14.400	7.11
12	cis-Sabinene hydrate	1070	14.701	0.72
13	Linalool^a	1096	15.841	0.54
14	Terpinen-4-ol	1177	18.479	0.29
15	Thymoquinone	1252	20.816	0.19
16	Thymol^a	1290	22.007	0.11
17	Carvacrol^a	1299	22.382	70.01
18	a-Cubenene	1348	23.768	0.08
19	a-Copaene	1376	24.565	0.58
20	b-Caryophyllene	1419	25.883	1.39
21	β-Bisabolene	1505	27.302	0.14
22	δ-Cadinene	1523	29.561	0.29
23	Thymohydroquinone	1555	30.761	1.00
24	Caryophyllene oxide	1583	32.548	0.20
	Total (%)			99.87
	Monoterpene hydrocarbons			24.33
	Oxygenated monoterpenes			72.86
	Sesquiterpene hydrocarbons			2.68

^aIdentification by comparison of retention times and co-injection with authentic compound.
^bR.I. (Retention Indices) from experimental using a SBP-5 column using a homologous series of n-alkanes (C9–C25).