Analysis of volatile constituents of Sideritis pisidica Boiss. & Heldr.: By head space gas chromatography mass spectrometry (HS-GC/MS)

Abstract

Sideritis pisidica Boiss. & Heldr. plants are usually collected on their natural stands and used an herbal tea in Turkey, which leads to a higher demand for the plant more than ever. Naturally grown Sideritis pisidica Boiss. & Heldr. plants were collected from Dedegöl Mountains in Anatolia. Aerial parts (stems, leaves and blossoms) of the plants were analyzed by Head Space Gas Chromatography Mass Spectrometry HS-GC/MS to identify volatile compounds. In total 38,36 and 34 compounds were identified in the stem, leaf and blossom, having a total area of 92.07,95.17 and 97.59%, respectively. The main volatile components present in great quantity in the stem were α-pinene (26.15%), sabinene (15.06%) and β-caryophyllene (9.99%); in the leaf α-pinene (32.95%), sabinene (15.43%), β-pinene (6.66%) and β-caryophyllene (6.12%); and in the blossom α-pinene (41.65%), sabinene (27.10%) and sabinene hydrate (5.11%). The study clearly revealed that aromatic volatile components in the stem, leaf or blossom of the Sideritis pisidica Boiss. & Heldr. differ from each other.