Volatile Oil Constituents of Rosa canina L.: Quality As Affected by the Distillation Method

Table 1

Chemical composition (%) of the aromatic water of R. canina obtained by HD and DD at 50 and 100°C.

No	Compound	RIa	RI𝑏	(%)
				HD	DD 50°C	DD 100°C
1	2,5-dimethylfuran	—	1558	—	—	2,1a
2	(E)-3-hexenol	853	1391	—	0,4a	—
3	1-(2-furanyl)-ethanone		1494	—	—	0,3a
4	α-pinene	940	1032	3,5a	0,7b	0,5
5	5-methylfurfural	964	—	—	—	1,1a
6	β-pinene	983	1118	0,7a	—	—
7	benzyl alcohol	1034	1896	—	0,2a	—
8	linalool	1088	1553	0,5a	0,3a	—
9	2-phenethyl alcohol	1117	1933	13,6b	58,4a	4,5c
10	eugenol	1356	2192	45,1a	23,7𝑏	22,9b
11	β-caryophyllene	1414	1612	2,6b	0,7c	3,3a
12	α-guaiene	1440	1589	0,5a	—	0,6a
13	β-ionone	1482	1952	—	—	0,3a
14	δ-guaiene	1499	1723	—	—	0,4a
15	caryophyllene oxide	1576	2008	0,5a	—	—
16	8-heptadecene	1666	—	—	—	6,8a
17	1-heptadecene	1679	—	6,0a	0,9b	—
18	heptadecane	1700	1698	0,4a	—	0,4a
19	1-nonadecene	1892	—	0,4b	—	0,8a
20	nonadecane	1900	1897	6,5b	1,1c	10,1a
21	n-eicosane	2000	2000	0,6b	0,21c	3,4a
22	n-heneicosane	2100	2100	4,4b	1c	10,2a
23	docosane	2203	2200	1,0b	0,9b	1,9a
24	tricosane	2301	2300	—	1,3b	4,2a
25	tetracosane	2398	2400	2,0a	—	—
26	pentacosane	2500	2500	2,7a	—	—
27	hexacosane	2598	2600	1,3a	—	—
	Group components
	Monterpene hydrocarbons			4,2a	0,7b	0,5b
	Sesquiterpenes hydrocarbons			3,1b	0,7c	4,3a
	Oxygenated sesquiterpenes			0,5a	—	0,3a
	Alkanes/alkenes			25,3b	5,4c	37,8a
	Alcohols			59,3b	83,0a	27,4c
	furan derivatives (O-heterocyclic)			—	—	3,2a
	Norisoprenoids			—	—	0,3a
	Total identified			92,5%	89,8%	73,8%

∗Retention Index relative to n-alkanes on (a) HP-5MS and (b) HP-Innowax columns.