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M. Sajewicz et al.

Table III. Dependence on the method of extraction^a of the relative amounts^b of volatile compounds isolated from samples of S. staminea collected in 2007 and 2008.

The retention times (*r) of the compounds are aiso given

Compound	fR (min)	Peak height (%)
		HS-70		HS-80		Deryng		ASE
		2007	2008	2007	2008	2007	2008	2007	2008
or-Pinene	10.97	10.09	3.72	8.75	5.28	2.64	6.36
Camphene	11.75	4.86	1.44	2.47
//-Pinene	12.20	5.23	6.47	5.39	11.50	3.05	0.11
/?-Myrcene	12.25
o-Cymene	13.15
Limonene	13.26	15.68	6.23	6.24	11.62	5.57	0.11
//-Phellandrene	13.32
/?-frans-Ocimene	13.36					3.93
Eucalyptol	13.50	3.58	3.88	1.12	5.85	0.54	4.47
ds-Ocimene	13.91	2.30		0.29
i-Terpinene	13.95
p-Mentha-1,4- diene	14.59
Thujol	15.12	3.33	2.51		7.01	0.41
Thujenone	15.35	0.69°	1.64		1.49	0.30
Thujone	15.47
Camphor	16.11
Borneol	16.65					0.97
Bornyl acetale	18.84
/3-Chamigrene	21.60	2.98	6.44	\|&2I	9.38	10.21	12.08	13.17	1211
Cadin-3,9-diene	22.43	1.41	3.49	2.19	4.60	6.30	6.39	4.70	3.90
Murolene	23.31
Isocaryophyllene	21.70
Caryophyllene	22.53

^aHS-70, head-space extraction at 70°C; HS-80, head-space extraction at 80°C; Deryng, vapour distillation in a Deryng apparatus; ASE, accelerated solvent extraction ^bThe amount of a volatile compound extracted by a given method of extraction is expressed on the percentage scalę (as semi-quantitatively estimated from its respective peak height relative to the sum for all the volatile compounds)

^cEmboldening indicates the chemotaxonomic advice compound (thujenone) estab-lished in previous work [14]

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