Exploring the Anti-Burkholderia cepacia Complex Activity of Essential Oils: A Preliminary Analysis

Table 2

Composition (%) and principal classes (%) of the six essential oils used in this work.

Constituents	LRI	Essential oil
		Lavandula hybrida	Eugenia caryophyllata	Melaleuca alternifolia	Origanum vulgare	Rosmarinus officinalis	Thymus vulgaris
Tricyclene	928					0.2	tr
𝛼-Thujene	933			0.6		tr
𝛼-Pinene	941	0.4	0.2	3.8	1.7	11.5	4.3
Camphene	955	0.3		tr	0.4	4.1	0.1
Thuja-2.4(10)-diene	959					tr
Sabinene	977	0.1	tr	0.6
𝛽-Pinene	982	0.6	0.1	2.1	0.4	3.8	1.2
Myrcene	993	0.5		0.6	1.3	1.3
𝛼-Phellandrene	1006			0.4	tr	0.2
1-Hexyl acetate	1010	0.1
𝛿-3-Carene	1013	tr	tr				tr
1.4-Cineole	1018						0.1
𝛼-Terpinene	1020		tr	8.8	0.8	0.4
𝑝-Cymene	1027	0.3	tr	3.7	11.6	1.9	47.9
Limonene	1032	0.7	0.1	2.0	1.1	1.8	0.2
1.8-Cineole	1034	6.9	tr	2.9	0.6	43.9	0.2
(𝑍)-𝛽-Ocimene	1042	0.3
𝛾-Terpinene	1063		tr	14.4	1.7	0.4
cis-Sabinene hydrate	1070	0.1		tr		tr
cis-Linalool oxide (furanoid)	1077	0.3
Terpinolene	1090			4.4	0.2	0.3
trans-Linalool oxide (furanoid)	1090	0.2
1-Pentyl butyrate	1094				tr
trans-Sabinene hydrate	1099			0.3
Linalool	1101	27.1			1.8	0.9	1.2
1-Octenyl acetate	1112	0.4
exo-Fenchol	1118			tr		tr	tr
cis-p-Menth-2-en-1-ol	1123			0.4
Terpinen-1-ol	1135			0.2
trans-Pinocarveol	1141					tr
trans-p-Menth-2-en-1-ol	1142			0.4
Camphor	1145	8.4			tr	11.3
1-Hexyl isobutyrate	1152	0.2
Isoborneol	1158				0.2
trans-Pinocamphone	1162					tr
Pinocarvone	1164					tr
Borneol	1168	3.2			0.4	4.2
Lavandulol	1171	0.6
cis-Pinocamphone	1175					tr
4-Terpineol	1178	3.9	tr	39.9	0.2	0.8
𝑝-Cymen-8-ol	1185			tr
𝛼-Terpineol	1190	1.7		4.2	0.4	2.6	0.6
1-Hexyl butyrate	1193	0.6
cis-Piperitol	1195			tr
Verbenone	1206					0.2
trans-Piperitol	1207			0.2
Nerol	1230	0.2
1-Hexyl 2-methylbutyrate	1235	0.1
1-Hexyl 3-methylbutyrate	1244	0.3
Chavicol	1252		tr
Linalyl acetate	1259	30.4
trans-Ascaridolglycol	1268			0.2
Isobornyl acetate	1287				0.2	0.7
Lavandulyl acetate	1291	3.3
Thymol	1292				1.6		43.1
Carvacrol	1301				71.8		0.4
1-Hexyl tiglate	1333	0.2
𝛼-Cubebene	1352		tr			tr
Eugenol	1358		85.0
Neryl acetate	1365	0.4
𝛼-Ylangene	1373					0.2
𝛼-Copaene	1377		0.2	tr	tr	0.6
Geranyl acetate	1383	1.0
𝛼-Gurjunene	1410			0.5
𝛽-Caryophyllene	1419	2.2	9.0	0.5	2.7	5.1	0.2
Lavandulyl isobutyrate	1424	0.1
trans-𝛼-Bergamotene	1437	0.2					tr
𝛼-Guaiene	1440			1.4		0.2
(Z)-𝛽-Farnesene	1444	0.2
𝛼-Humulene	1455	tr	1.4	0.1	0.2	0.5	tr
(E)-𝛽-Farnesene	1459	1.1
Alloaromadendrene	1461			0.6
𝛾-Muurolene	1478					0.6
Germacrene D	1482	0.3
Valencene	1493			0.3
Viridiflorene	1494			1.3		0.2
Bicyclogermacrene	1496			0.7
𝛼-Muurolene	1499			0.2		0.2
𝛽-Bisabolene	1509	0.2				0.2
Lavandulyl 2-methylbutyrate	1513	0.4
trans-𝛾-Cadinene	1514	0.5				0.4
𝛿-Cadinene	1524		0.6	1.8		0.9
trans-Cadina-1(2).4-diene	1534			0.2
Spathulenol	1577			0.2
Caryophyllene oxide	1582	0.6	0.5		0.6	0.3	tr
Globulol	1584			0.5
Guaiol	1597			0.2
1-epi-Cubenol	1629			0.3
T-Cadinol	1640	0.2
Cubenol	1643			0.2
𝛼-Bisabolol	1684	0.4
Monoterpene hydrocarbons		3.2	0.4	41.4	19.2	25.9	53.7
Oxygenated monoterpenes		88.2	0.0	48.7	77.2	64.6	45.6
Sesquiterpene hydrocarbons		4.7	11.2	7.6	2.9	9.1	0.2
Oxygenated sesquiterpenes		1.2	0.5	1.4	0.6	0.3	tr
Phenylpropanoids		—	85.0	—	—	—	—
Other derivatives		1.9	—	—	tr	—	—
Total identified		99.2	97.1	99.1	99.9	99.9	99.5

LRI: linear retention indices relative to the series of 𝑛-hydrocarbons; tr: traces.