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Comparative analysis of essential oils from the leaf, fruit and stem bark of Harungana madagascariensis

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Author(s): Gbolade Adebayo | Tira-Picos Viana | Nogueira Joseph | Oladele Adekunle

Journal: International Journal of Green Pharmacy
ISSN 0973-8258

Volume: 3;
Issue: 4;
Start page: 290;
Date: 2009;
Original page

Keywords: Essential oil | gas chromatography-mass spectroscopy | Harungana madagascariensis | Hypericaceae | sesquiterpenes

ABSTRACT
A comparative analysis of hydro-distilled essential oils of the leaf, stem bark and fruit of Harungana madagascariensis was carried out by gas chromatography-mass spectroscopy (GC-MS) for the first time. Both qualitative and quantitative differences existed in the composition of the three oils which comprised mainly sesquiterpene hydrocarbons (66.8-69.6%). β-caryophyllene (32.4% and 18.4% respectively, for leaf and fruit oils only), α-humulene (10.4%, 9.8% and 7.3% respectively for leaf, stem bark and fruit oils), germacrene D (8.7% for leaf oil only), and α-farnesene (37.4% and 10.4% respectively, for stem bark and fruit oils only) were the predominant constituents.
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