BT

Typical G.C. analysis

thymus zygis ssp. zygis herb oil portuguese
Variations in the chemical composition of the essential oils of T. sygis L. ssp. sylvestris (Hoffm. et Link) Brot. ex. Coutinho and T. sygis L. ssp. gracilis (boiss.) R. Morales from southeastern Spain were determined by Saez (1995). In this study, oils from four collections of each subspecies were examined by GC and GC/MS. A summary of the data obtained from these analyses (Table IV) shows that different chemotypes of each of the subspecies can be found. Of these, only the thymol chemotypes of T. zygis ssp. gracilis is typical of the red thyme oil in commerce. Only the chemotype thymol will be shown here:
#%LeftshiftComponents
25tracebeta- bisabolene
231.0  borneol
18trace  bornyl acetate
30.6  camphene
160.5  camphor
2942.0  carvacrol
191.5beta- caryophyllene
300.6  caryophyllene oxide
90.21,8- cineole
1119.9para- cymene
270.3  geraniol
260.2  geranyl acetate
24trace  germacrene D
21tracealpha- humulene
80.4  limonene
173.8  linalool
61.3  myrcene
130.13- octanol
140.21- octen-3-ol
20.7alpha- pinene
40.1beta- pinene
5trace  sabinene
150.2(E)- sabinene hydrate
200.9  terpinen-4-ol
71.0alpha- terpinene
1015.0gamma- terpinene
220.1alpha- terpineol
12trace  terpinolene
10.8alpha- thujene
280.2  thymol
310.1  viridiflorol

L. R. Salgueiro. A. Proencada Cunha and J. Paiva,Chemotaxonomic characterization of a Thymus hybrid from Portugal. Flav. Fragr. J., 8, 325-330 (1993).

P&F 20, No. 3, 67, (1995)

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