The composition and antimicrobial activities of Cyperus conglomeratus, Desmos chinensis var. lawii and Cyathocalyx zeylanicus essential oils

Abdulkhader Hisham, Koranappallil B. Rameshkumar, Neelam Sherwani, Salim Al-Saidi, Salma Al-Kindy

Research output: Contribution to journalArticle

4 Citations (Scopus)


The essential oil compositions of the rhizomes of Cyperus conglomeratus (Cyperaceae) collected from Oman and the leaves of two Annonaceae plants, Desmos chinensis var. lawii and Cyathocalyx zeylanicus collected from India were studied by GC, GC-MS and 13C NMR spectroscopy. Twenty-six compounds, representing 84.4% of the oil were identified in C. conglomeratus, where eugenol (31.3%), α-cyperone (10.5%) and cyperotundone (8.4%) were the major compounds. Twelve compounds, constituting 100%, were identified in D. lawii oil, of which benzyl benzoate (58.7%), β-caryophyllene (23.2%), limonene (4.9%) and α-humulene (4.0%) were the major constituents. Thirty-two compounds, comprising 98.0%, were identified in C. zeylanicus oil, of which β-caryophyllene (21.6%), α-pinene (20.4%) and E-β-ocimene (11.8%) were the major components. The antibacterial and antifungal activities of the oils were tested against a panel of five bacterial and two fungal strains. The oils showed moderate activity against all the tested microbial strains. The minimum inhibitory concentrations of the oils were also determined.

Original languageEnglish
Pages (from-to)663-666
Number of pages4
JournalNatural Product Communications
Issue number5
Publication statusPublished - 2012



  • Antimicrobial activity
  • Cyathocalyx zeylanicus Champ.
  • Cyperus conglomeratus Rott.
  • Desmos chinensis var. lawii
  • Essential oil compositions

ASJC Scopus subject areas

  • Drug Discovery
  • Pharmacology
  • Complementary and alternative medicine
  • Plant Science

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