Chemical composition of leaf and bark essential oils of Vepris unifoliolata from Madagascar

The chemical composition of leaf essential oil of Vepris unifoliolata was characterized by hydrocarbon monoterpenes, α-pinene (60.5%), myrcene (6.8%), limonene (5.1%), (E)-β-ocimene (4.9%) and β-phellandrene (4.7%). The chemical composition of bark essential oil of V. unifoliolata was original and c...

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Bibliographic Details
Published in:The Journal of essential oil research 2017-05, Vol.29 (3), p.214-220
Main Authors: Garcia, Gabriel, Charmillon, Julie-Marie, Roux, Elodie, Sutour, Sylvain, Rakotozafy, Jean Bertieu, Désiré, Odile, Paoli, Mathieu, Tomi, Félix, Rabehaja, Delphin J. R.
Format: Article
Language:English
Subjects:
Analytical chemistry
C-NMR
Chemical Sciences
germacrone
heat-sensitive compounds
isofuranodiene
Vepris unifoliolata
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Summary:The chemical composition of leaf essential oil of Vepris unifoliolata was characterized by hydrocarbon monoterpenes, α-pinene (60.5%), myrcene (6.8%), limonene (5.1%), (E)-β-ocimene (4.9%) and β-phellandrene (4.7%). The chemical composition of bark essential oil of V. unifoliolata was original and characterized by a high content in heat-sensitive compounds isofuranodiene (43.9%) and germacrone (17.1%). These compounds bearing the (E,E)-1,5-cyclodecadiene structure were known to rearrange and degrade during the GC-FID and GC-MS. The true content of isofuranodiene/curzerene, germacrone/trans-β-elemenone, germacrene A/β-elemene and germacrene B/γ-elemene was evaluated by combination of 13 C-NMR data (intensities of signals of selected carbons) and GC-FID. Thus, a correct quantitative analysis of bark oil of V. unifoliolata was provided.
ISSN:1041-2905
2163-8152
DOI:10.1080/10412905.2016.1251982