Abstract:
The genus Thymus has a
wide distributional range and chemical
composition of the essential oils varies with
geographical location of collection site,
climate and other ecological factors. The
essential oils of the aerial parts were
obtained by hydrodistillation and analyzed
by gas chromatography (GC) and gas
chromatography/mass spectrometry
(GC-MS). Twenty seven components were
characterized in the essential oil of
T. fedtschenkoi. The major constituents of
the oil were carvacrol (69.04%), thymol
(5.95%), borneol (5.21%), p-cymene
(4.20%), bornyl acetate (2.97%) and 1,8-
cineole (2.72%). Twenty two components
were characterized in the essential oil of T.
trauveterri. The major constituents of the oil
were carvacrol (54.02%), thymol (9.29%),
borneol (3.51%), p-cymene (18.64%) and γ-
terpinene (2.97%). Twenty six components
were characterized in the essential oil of
T. pubescens. The major constituents of the
oil were carvacrol (13.85%), α-terpineol
(11.49%), thymol (10%), geraniol (9.48%),
α-pinene (8.52%), p- cymene (7.66%),
camphor (4.66%), γ-terpinene (3.15%) and
myrcene (2.22%). Twenty four components
were characterized in the essential oil of
T. fallax. The major constituents of the oil
were carvacrol (41.84%), p-cymene
(12.18%), α-terpineol (11.49%), thymol
(10%), γ-terpinene (8.68%), borneol
(5.11%), geraniol (4.35%) and geranyl
acetate (2.16%).
