Essential‐Oil Composition of the Tunisian Endemic Cypress (Cupressus sempervirens L. var. numidica Trab.) |
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| Authors: | Kaouther El Hamrouni‐Aschi Mohamed Larbi Khouja Mohamed Boussaid Noureddine Akrimi Lamjed Toumi |
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| Institution: | 1. National Institute of Agronomy of Tunis, 43 avenue Charles Nicolle, 1082 Tunis, Tunisia, (phone/fax: +216‐71‐381770);2. National Institute of Research in Genie Rural, Water and Forests, B.P. 10, 2080, Ariana, Tunisia;3. National Institute of Applied Sciences and Technologies, Department of Biology, Laboratory of Plant Biotechnology, Centre Urbain Nord, B.P. 676, 1080 Tunis, Tunisia, (phone: +216‐71‐703829(929);4. fax: +216‐71‐704329);5. Superior Institute of Biotechnology of Béja, avenue Habib Bourguiba, B.P. 382, 9000 Béja, Tunisia |
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| Abstract: | The essential oils isolated from leaves, wood, and cones of the Tunisian endemic cypress Cupressus sempervirens L. var. numidica Trab. collected from three natural populations were characterized by GC‐FID and GC/MS analyses. In the wood, leaf, and cone oils, 38, 35, and 26 constituents, representing 94.4, 97.8, and 98.5% of the total oil composition, respectively, were identified. Monoterpenes constituted the major fraction of the oils from all organs and for all populations. The oils were found to be of an α‐pinene (64.2%)/δ‐car‐3‐ene (11.1%) chemotype with considerable contents of α‐humulene (3.4%) in the leaf oil, cedrol (2.8%) in the wood oil, and sabinene (3.2%) in the cone oil, respectively. α‐Pinene, δ‐car‐3‐ene, limonene, carvacrol methyl ether, α‐humulene, and α‐amorphene were the main components that differentiated the oils of the three organs in the cypress of Makthar. |
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| Keywords: | Cupressus sempervirens var numidica Cypress Essential oils Hierarchical cluster analysis (HCA) Canonical discriminant analysis |
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