The aim of this work was to determine the
exact composition of the essential oil extracted from Thymus fontanesii
collected from Tiaret at the western region of Algeria by gas chromatography
method. The fresh aerial parts of T. fontanesii were collected at the flowering
stage on May 2017 from Tiaret, at the western region of Algeria, characterised
by a semi-arid climate. The essential oil extracted was dried with anhydrous
sodium sulfate and kept at a cool temperature of +4°C in glass bottles away
from light. The essential oil from leaves of Thymus fontanesii was analysed by
gas chromatography (GC-FID) and gas chromatography–mass spectrometry (GC/MS)
realized by Pyrenessences Analysis, France. The oil was obtained from the
aerial parts of T. fontanesii with an average yield of 2,256±0,094%. The
chromatographic analyses identified ninety-one (91) compounds which represents
approximately 99,92% of the total detected oil components mainly represented by
carvacrol with 62,25% being by far the main component the other appreciable
constituents identified were γ-terpinene with 12,62%, β-cymene with 7,43%,
linalool with 4,26%, β-myrcene with 1,29% and α-terpinene with 1,31%. and
thymol represented only 1,76% of the composition.
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