Table 2.

Chemical composition of M. fistulosa essential oils isolated from flowers (MEO_Fl) and leaves (MEO_Lv).

#	RRI	Compound	MEOFl	MEOLv	#	RRI	Compound	MEOFl	MEOLv
1	1032	α-Pinene	0.7	0.4	23	1497	α-Copaene	T	t
2	1035	α-Thujene	2.4	1.3	24	1535	β-Bourbonene	T	0.1
3	1076	Camphene	0.1	0.1	25	1553	Linalool	0.1	0.1
4	1118	β-Pinene	0.2	0.1	26	1556	cis-Sabinene hydrate	0.2	0.2
5	1132	Sabinene	0.3	0.1	27	1571	trans-p-Menth-2-en-1-ol	0.1	t
6	1159	δ-3-Carene	0.2	0.1	28	1590	Bornyl acetate	T
7	1167	3-Heptanone	t		29	1611	Terpinen-4-ol	1.1
8	1174	β-Myrcene	1.4	0.8	30	1614	Methyl carvacrol	1.1	1.4
9	1176	α-Phellandrene	0.3	0.2	31	1638	cis-p-Menth-2-en-1-ol	T
10	1183	p-Mentha-1,7(8)-diene	t		32	1689	trans-Piperitol	0.2
11	1188	α-Terpinene	3.8	1.7	33	1704	γ-Muurolene		t
12	1203	Limonene	0.9	0.5	34	1706	α-Terpineol	0.2	0.1
13	1218	β-Phellandrene	0.3	0.2	35	1719	Borneol	0.2	0.1
14	1255	γ-Terpinene	6.8	2.5	36	1726	Germacrene D	0.3	0.2
15	1266	3-Octanone	t		37	1773	δ-Cadinene		t
16	1280	p-Cymene	25.6	13.1	38	1802	Cumin aldehyde		t
17	1290	Terpinolene	0.1		39	1864	p-Cymen-8-ol		0.1
18	1393	3-Octanol	0.1		40	1889	Ascaridole		t
19	1400	Nonanal	t		41	1940	4-Isopropyl salicylaldehyde		t
20	1408	1,3,8-p-Menthatriene	t		42	1969	cis-Jasmone		0.1
21	1452	1-Octen-3-ol	1.5	0.9	43	2113	Cumin alcohol		t
22	1474	trans-Sabinene hydrate	1	0.8	44	2198	Thymol	3.1	3.3
					45	2239	Carvacrol	45.7	71.5

The data are presented as relative % by weight for each component that was isolated from M. fistulosa flowers and leaves. RRI, relative retention index calculated on the basis of retention of n-alkanes; %, calculated from flame ionization detector data. Trace amounts (t) were present at <0.1%. # means compound number.