Abstract
The objective of this study was to investigate the chemical
composition, antioxidant, anticholinesterase and anti-urease
activities of essential oil, hexane, acetone and methanol extracts
of Sideritis pisidica Boiss. & Heldr. The essential oil and fatty
acid composition were analyzed by GC and GC/MS. δ-Cadinene
(19.5 %), T-cadinol (16.7 %) and β-cubebene (10.4 %) were
identified as the main compounds of the essential oil whereas
the most abundant compounds of fatty acids were found as
linolenic (42.7 %), palmitic (31.3 %) and linoleic (13.4%) acids.
The methanol extract demonstrated the highest antioxidant
activity in all tests, except for metal chelating assay. The hexane
extract was found to be significantly active in metal chelating
(IC50: 22.97±1.36 μg/mL), acetylcholinesterase (62.54±0.88 %)
and urease inhibitory (78.93±0.17 %) assays. These results show
that the Sideritis pisidica could be used as the potential source of
natural products in the food and pharmaceutical areas.