Volume 65, April 2016, Pages 192–197
Highlights
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- Schizogyne sericea is a medicinal plant endemic to Canary Islands.
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- The essential oil obtained from three populations was analysed.
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- p-cymene and thymol derivatives are marker compounds.
Abstract
Schizogyne sericea,
also known as ‘salado’, is a halophytic species widespread throughout
all the Canary Islands (Spain), being more common in Tenerife and Gran
Canaria. The plant has been traditionally used as analgesic, astringent,
anti-inflammatory and vulnerary. The aim of this work was to
investigate the chemical variability in the volatile profiles obtained
from the flowering aerial parts of S. sericea harvested in
different localities (Palm Mar, Los Roques and La Barranquera) of
Tenerife characterized by different microclimates. For the purpose, the
essential oils were hydrodistilled from the dried aerial parts by a
Clevenger-type apparatus and analysed by GC–MS. A similar chemical
composition for the essential oil samples from the different geographic
areas was obtained. The aromatic monoterpene hydrocarbon p-cymene
(43.0–57.0%) was by far the main component of the essential oils, with
minor amounts of isobornyl acetate (4.5–11.0%), limonene (4.7–5.6%),
β-pinene (0.7–5.3%), α-phellandrene (2.2–4.8%) and camphene (1.8–4.5%).
Interesting to note was the occurrence of thymol derivatives. That may
be considered important chemotaxonomic markers of the genus Schizogyne, and, more in general, of the tribe Inulae. The volatile chemical profile obtained for S. sericea was similar to that of Schizogyne glaberrima previously studied.
Keywords
- Schizogyne sericea;
- Asteraceae;
- Essential oil;
- GC–MS;
- p-cymene;
- Thymol derivatives
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