Volatile composition of Helichrysum arenarium field accessions with differently coloured inflorescences

  • J. RADUŠIENĖ
  • A. JUDŽENTIENĖ

Anotacija

The composition of essential oils obtained from six colour inflorescences of Helichrysum arenarium field accessions was analysed by GC and GC–MS. A total of 68 compounds were identified. Sesquiterpene hydrocarbons were shown to be the main group of constituents in all samplesand to account for 20.6–41.2% of total essential oil. The rather small monoterpene fraction (6.7–14.8%) consisted mainly of oxygenated monoterpenes (5.5–13.6%). On the basis of the major constituents, four chemical profiles of essential oils were distinguished. Trans-caryophyllene, δ-cadinene, and heneicosane were prevalent in essential oils from citric-yellow, orange and brown-orange inflorescences. The composition of essential oils from citric inflorescences differed by the third major constituent – 1,8-cineole. Oils from yellow inflorescences contained tetradecanoic acid, whereas nonadecane was the major constituent of oils from yellow-brown inflorescences. Chemical analysis of essential oils revealed a chemical variability that was more or less reflected in the morphological variability exposed by the colour of inflorescences. Keywords: Helichrysum arenarium, essential oil composition, GC-MS, sesquiterpene hydrocarbons
Publikuotas
2008-04-01
Skyrius
Fiziologija