Antimicrobial activity and a comparative essential oil analysis of Centaurea pulcherrima Willd. var. pulcherrima extracted by hydrodistillation and microwave distillation


Kahriman N., Tosun G., Iskender N. Y., Karaoglu Ş., Yayli N.

NATURAL PRODUCT RESEARCH, vol.26, no.8, pp.703-712, 2012 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 8
  • Publication Date: 2012
  • Doi Number: 10.1080/14786419.2010.551298
  • Journal Name: NATURAL PRODUCT RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.703-712
  • Keywords: Centaurea pulcherrima var. pulcherrima, Asteraceae, essential oil, GC-FID, GC-MS, VOLATILE CONSTITUENTS, CHEMICAL-COMPOSITION, GREEN-CHEMISTRY, GROWING WILD, HUB.-MOR., TURKEY, ASTERACEAE, FLOWER, LEAF, STEM
  • Recep Tayyip Erdoğan University Affiliated: Yes

Abstract

The essential oils of Centaurea pulcherrima Willd. var. pulcherrima (Asteraceae) were isolated by hydrodistillation (HD) and a microwave distillation (MD), than characterised by GC-FID and GC-MS. A total of 58 and 57 compounds were identified, constituting over 93.7%, and 91.6% of volatile oil composition of C. pulcherrima var. pulcherrima, respectively. Sesquiterpene hydrocarbons were shown to be the main group of constituents (HD: 42.4% versus MD: 51.5%). The major component of the oils of C. pulcherrima var. pulcherrima was germacrene D (HD, 17.8% versus MD, 23.2%). The antimicrobial activity of the isolated essential oils of the plant was also investigated, and they showed good antibacterial activity against to tested Gram-positive bacteria, especially to M. smegmatis and a yeast-like fungus C. albicans.