Essential oil composition of two Greek cultivated Sideritis spp.

Year 2019, Volume: 6 Issue: 3, 16 - 23, 22.12.2019

Helen Skaltsa , Ekaterina-michaela Tomou Charalampia Kloukina

Abstract

Essential oil composition of
cultivated Sideitis raeseri Boiss.
& Heldr. and Sideritis scardica Griseb.
from three different restricted areas of Kozani (central Greece) have been studied. The
plant materials were commercially available. The essential oils were obtained
by hydrodistillation in a modified Clevenger-type apparatus, and their analyses
were performed by GC-MS. Identification of the components was made by
comparison of mass spectra and retention indices with literature records and by
co-chromatography with authentic compounds. Monoterpene hydrocarbons constituted the main fraction of S. raeseri from Polirraxo (Kozani) and of S. scardica from Chromio (Kozani), while sesquiterpene hydrocarbons
were the main group of S. raeseri
from Metamorfosis (Kozani)
and S. scardica from Metamorfosis (Kozani). Despite
the different cultivations, some constituents were found even in different
percentages in both samples of S. scardica:
α-pinene, b-pinene, cis-caryophyllene, bicyclogermacrene and
germacrene D. It is noteworthy that the two samples of S. raeseri have totally different main constituents, which could be
related to the different cultivation conditions, as well as to known tendency
of some Sideritis species to
hybridize.

 

Keywords

S. raeseri, S. scardica

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