Aroma Profile of Essential Oils of Solenostemon monostachyus P. Beauv from Nigeria

Emmanuel E. Essien1,3*, Paul S. Thomas2, Mohammad I. Choudhary3

1Department of Chemistry, University of Uyo, Uyo 520101, Nigeria

2Department of Pharmacognosy and Natural Medicine, Faculty of Pharmacy, University of Uyo, Uyo 520101, Nigeria

3Hussain Ebrahim Jamal Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan

Received: 05-Jan-2017 , Accepted: 25-Apr-2017

Keywords: Solenostemon monostachyus, Lamiaceae, essential oil, gas chromatography-mass spectrometry

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How to Cite this Article

Emmanuel E. Essien, Paul S. Thomas, Mohammad I. ChoudharyAroma Profile of Essential Oils of Solenostemon monostachyus P. Beauv from Nigeria. UKJPB. 2017;5(2): 34-37.

Abstract

This study was conducted to evaluate the volatile oils constituents of Solenostemon monostachyus P. Beauv, an aromatic non-conventional vegetable. The essential oils isolated by hydrodistillation from leaves, stem, floral and aerial parts of S. monostachyus (P.Beauv.) Briq. were investigated by gas chromatography-mass spectrometry (GC-MS). A total of fifteen constituents were identified and characterized by the high amount of sesquiterpenoid (43.13-91.21%). The leaf oil comprised mainly of β-caryophyllene (71.42%), α-caryophyllene (7.0%), 1-octen-3-ol (6.96%) and caryophyllene oxide (6.67%); the stem oil consisted of β-caryophyllene (46.75%), α-caryophyllene (20.22%), caryophyllene oxide (10.45%) and 1-octen-3-ol (10.31%); the predominant compounds in the floral oil were 1-octen-3-ol (40.24%), β-caryophyllene (18.94%) and α-caryophyllene (16.98%); while β-caryophyllene (27.43%), caryophyllene oxide (24.83%) and α-caryophyllene (12.9%) were the abundant components of the aerial oil. The chemical composition of S. monostachyus essential oils from Nigeria is reported for the first time.