Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3799

Short Communication

Chemical composition of essential oil from Orthosiphon diffuses Benth.

C. T. Sadashiva1, P. Sharanappa2, Y. Naidoo1, C. T. Sulaimon3 and Indira Balachandran3    
1School of Life Sciences, University of KwaZulu-Natal, Durban, 4000, South Africa. 2Department of Bioscience, University of Mysore, P.G. Centre, Hassan, Karnataka, 573201, India. 3Centre for Medicinal Plant Research, Arya Vaidya Sala, Malappuram, Kottakkal, Kerala, 676503, India.    
Email: [email protected]

  •  Accepted: 17 October 2012
  •  Published: 25 January 2013


In this study, the chemical composition of the essential oil of Orthosiphon diffusus was investigated. Extraction by hydrodistillation followed by gas chromatography and mass spectrometry (GC-MS) yielded 25 compounds representing 95.3% of the oil. The major volatile components of the oil were n-eicosane (19.5%), t-caryophyllene (18.6%), octocosane (12.2%), limonene (11.6%), β-ocimene (4.2), methyl palmitate (2.8%) and elemol (2.6%).


Key words: Orthosiphon diffusus, essential oil, n-eicosane, t-caryophyllene.