African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 816

Full Length Research Paper

Composition of the essential oils of three Cyperus species from Congo

Victor N?goka*
  • Victor N?goka*
  • Département de Chimie, Faculté des Sciences et Techniques, Université Marien Ngouabi B.P: 69 Brazzaville ? Congo; Laboratoire de Pharmacochimie et Pharmacotechnie des Plantes Médicinales CHIRED-CONGO B.P: 13.922 Brazzaville République du Congo.
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Pierette Lokanga Tchiyamba
  • Pierette Lokanga Tchiyamba
  • Laboratoire de Pharmacochimie et Pharmacotechnie des Plantes Médicinales CHIRED-CONGO B.P: 13.922 Brazzaville République du Congo.
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Flore Victoire Foungui Otoungou
  • Flore Victoire Foungui Otoungou
  • Laboratoire de Pharmacochimie et Pharmacotechnie des Plantes Médicinales CHIRED-CONGO B.P: 13.922 Brazzaville République du Congo.
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  •  Received: 14 October 2012
  •  Accepted: 14 November 2014
  •  Published: 30 November 2014

Abstract

Essential oils from underground parts of Cyperus articulatus (L.), Cyperus sp. and Kyllinga brevifolia (S.) were analyzed by gas chromatography mass spectrometry (GC-MS). Thirty four (34) components were identified in the oil of C. articulatus. The main components were α-cadinol (12.07%), trans-pinocarveol (9.86%), cyperenone (7.28%), cyperene (6.29%), myrtenol (5.50%), myrtenal (4.90%) and cis-carveol (4.42%). Fifteen (15) components were identified in the oil of Cyperus sp. The main components were farnesol (28.61%), humulene epoxide (12.86%) and caryophyllene oxide (8.96%). Twenty three components were identified in the oil of K. brevifolia with the main components being manoyl oxide (44.08%), β-pinene (13.58%), cyperene (7.63%) and γ-terpineol (7.37%). Only β-pinene and limonene were present in the three species of Cyperaceae. The findings show broad differences in chemical compositions of the essential oils of C. articulatus, Cyperus sp. and K. brevifolia. When compared with previous studies available in literature, it was also noticed that a difference of composition existed for oils of C. articulatus and K. brevifolia of other origins, respectively.

 

Key words: Cyperus articulatus, Cyperus sp., Kyllinga brevifolia, Cyperaceae, essential oil, rhizome.

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