Composition of the essential oil of Helichrysum forsskahlii (Gmel) Hilliard et Burt

El-Olemy M., Al-Rehaily A., Albishi O., Mossa J., Demirci B., Baser K.

JOURNAL OF ESSENTIAL OIL RESEARCH, vol.17, no.1, pp.112-116, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 17 Issue: 1
  • Publication Date: 2005
  • Doi Number: 10.1080/10412905.2005.9698847
  • Journal Name: JOURNAL OF ESSENTIAL OIL RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.112-116
  • Keywords: Helichrysum forsskahlii, Asteraceae, essential oil composition, selina-5,11-diene, antimicrobial activity, GREEK ORIGIN
  • Anadolu University Affiliated: Yes

Abstract

The essential oil obtained by hydrodistillation of the aerial parts of Helichrysum forsskahlii, endemic to southern Saudi Arabia, was analyzed by GG/MS. Eighty-one compounds, representing more than 85.9% of the oil, were identified with selina-5,11-diene (45.3%), delta-3-carene (7.8%), 1,8-cineole (4.2%) and beta-caryophyllene (4.9%) as main constituents. The major component, selina-5,11-diene, being not previously isolated from natural sources, was isolated by column chromatography and its identity confirmed by 1 and 2D NMR spectral analysis. Tire oil showed only a very weak activity against Mycobacterium smegmatis, with no activity against Gram-positive and Gram-negative bacteria or Candida test organisms. Likewise, selina-5,11-diene showed only a weak activity against M. intracellulare.