Table I. Chemical composition of trichomes from Stevia.

No.a	Compounds	RTb	RIc	Formula	RAd
		min			%
1	α-Pinene	9.07	922	C10H16	0.13
2	(+)-Sabinene	9.74	972	C10H16	0.15
3	β-Pinene	9.84	979	C10H16	1.10
4	β-Linalool	11.82	1,126	C10H18O	0.17
5	l-α-Terpineol	13.49	1,186	C10H18O	0.06
6	β-Elemene	16.82	1,389	C15H24	1.84
7	Caryophyllene	17.37	1,424	C15H24	2.15
8	α-Bergamotene	17.45	1,432	C15H24	0.94
9	α-Humulene	17.89	1,452	C15H24	1.18
10	Germacrene D	18.29	1,484	C15H24	1.10
11	β-Selinene	18.40	1,489	C15H24	0.29
12	Elixene	18.52	1,492	C15H24	1.27
13	γ-Cadinene	18.74	1,513	C15H24	0.24
14	δ-Cadinene	18.82	1,524	C15H24	0.17
15	(±)-trans-Nerolidol	19.27	1,561	C15H26O	0.93
16	Farnesol	19.47	1,620	C15H26O	0.17
17	Germacrene d-4-ol	19.69	1,660	C15H26O	0.56
18	α-epi-Cadinol	20.58	1,638	C15H26O	0.27
19	α-Cadinol	20.79	1,652	C15H26O	0.28
20	Isoaromadendrene epoxide	21.08	1,579	C15H24O	0.40
21	Ledene oxide-(II)	22.18	1,683	C15H24O	0.09
22	[2-(4-Methoxy-phenyl)-[1,3]dioxolan-2-yl]-acetic acid	23.46	1,930	C12H14O5	0.15
23	Manoyl oxide	25.32	1,988	C20H34O	1.07
24	n-Octadecanol	25.95	2,053	C18H38O	2.39
25	Ethanol, 2-[2-[4-(1,1,3,3-tetramethylbutyl)phenoxy]ethoxy]-	26.93	2,126	C18H30O3	0.28
26	Stearyl acetate	27.30	2,160	C20H40O2	0.33
27	3-Oxomanoyl oxide	27.90	2,219	C20H32O2	2.73
28	(+)-Agathadiol	28.80	2,357	C19H30O2	4.80
29	(+)-Copaiferic acid	28.96	2,369	C20H32O2	4.62
30	4,8,13-Duvatriene-1,3-Diol	29.28	2,400	C21H28O2	0.72
31	4-(3-Hydroxy-3-methylpentyl)-3,4a,8,8-tetramethyldecahydro-1-naphthalenol	29.57	2,415	C20H34O2	1.30
32	Androstan-17-one, 3-methoxy-16,16-dimethyl-, (3β,5α)-	29.86	2,418	C22H36O2	1.90
33	Labda-8(20),13-dien-15-oic acid, 19-hydroxy-, methyl ester, (E)-	30.45	2,429	C21H32O3	29.64
34	Pregnane-18,20-diol, (5α)-	31.09	2,449	C21H36O2	5.63
35	Allopregnane-3α,20α-diol	31.47	2,475	C21H36O2	12.20
36	17-α-Hydroxypregnenolone	31.57	2,480	C20H32O2	9.97
37	2-[5-(2,2-Dimethyl-6-methylene-cyclohexyl)-3-methyl-pent-2-enyl]-[1,4]benzoquinone	31.84	2,489	C21H28O2	2.91
38	Isophthalic acid, 3,7-dimethyloct-6-enyl propyl ester	31.96	2,492	C21H30O4	3.30
39	3-Ethyl-5-(2'-ethylbutyl)octadecane	32.13	2,599	C26H54	0.76
40	Allopregnane-7α,11α-diol-3,20-dione	32.36	2,613	C21H32O4	0.39
41	Ethanol, 2-[2-[2-[2-[p-(1,1,3,3-tetramethylbutyl)phenoxy]ethoxy]ethoxy]ethoxy]-	32.64	2,676	C22H38O	0.97
42	n-Heptacosane	33.06	2,700	C27H56	0.45

^aCompound listed in order of elution in an HP-5MS Ultra Inert (UI) column.

^bRetention time.

^cRetention indices calculated against C₇-C₃₀ n-alkanes on the HP-5MS UI column.

^dRelative amount. Ratio expressed against the sum of all peaks.