Composition of The essential oils of Tanacetum densum (Lab.) schultz Bip. subsp. amani and T. densum (Lab.) schultz Bip. subsp. laxum (Asteraceae) from Turkey

Abstract

The aerial parts of Tanacetum densum subsp. amani and T. densum subsp. laxum were hydrodistilled to produce the oils with yields of 0.30 % (v/w) and 0.15 % (v/w), respectively. The oils were analyzed by GC and GC/MS. Seventy three and seventy components were identified representing 92.2 and 80.6 % of the oils, respectively. The main compounds of T. densum subsp. amani were a-pinene (3.0 %), 1,8-cineole (14.7 %), borneol (31.3 %) and endoborneol (21.0 %). Whereas a-pinene (5.0 %). (+)-epi-bicyclosesquiphellandrene (31.4 %), a-cadinol (7.0 %), 1 -heptadecanol (5.6 %) and eicosane (3.2 %) were the major constituents in T. densum subsp. laxum. Distribution of the predominate compounds in essential oil were discussed among the Tanacetum genus patterns.