Flavonoids and Essential Oils of T. vulgaris and T. schimperi
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Date
1997-03
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Addis Ababa Universty
Abstract
The essential oils of the leaves of Thymus species ( I vulgaris and T. schimperi) grown in
different parts of Ethiopia were investigated using GC and GC-MS. The results indicated that
T. vulgaris was rich in thymol (>40%) while the components of the oil of T. schimperi grown
in different regions vary considerably. The major components of T. schimperi obtained from
Dinshu, Maichew and Science Faculty Arobertum were thymol (42-50%) linalool (30%) and
carvacrol (44%) respectively. Plant material purchased from Debre Sina was similar in its
composition with that from Dinshu.
Solvent extraction of the aerial parts of T. vulgaris yielded the flavonoids naringenin and
eriodicytol. Their structures were determined by spectroscopic methods
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Keywords
Oils of T. vulgaris and T. schimperi