Aromatic Plants of Tropical Central Africa. Part XXVI.Volatile Constituents of Leaves of Coreopsis barteri Oliv. & Hiern and Coreopsis grandiflora Hogg ex Sweet from Cameroon
✍ Scribed by C. Menut; G. Lamaty; P. H. Amvam Zollo; J. R. Kuiaté; F. Fekam Boyom; J. M. Bessière
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 179 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0882-5734
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✦ Synopsis
The chemical composition of essential oils isolated by hydrodistillation of leaves of Coreopsis burteri O h . & Hiern and Coreopsis grundifIoru Hogg ex Sweet were analysed by capillary G C and GC-MS. Limonene (55.4%) and a-phellandrene (12.9%) were found to be the major constituents of C. burteri oil whereas germacrene-D (42.1%) and myrcene (11.7%) predominate in the volatile extract of C. grundifloru; besides these two terpene hydrocarbons, the latter oil contains minor but significant amounts of two rather unusual compounds: l-phenyl-1,3,5-heptatriyne (5.2%) and precocene I (0.90/,).