Volume 9, Issue 4 pp. 806-816
Research Article

Chemical Composition and Intraspecific Variability of the Essential Oils of Five Populations of Hypericum triquetrifolium Turra Growing in North Tunisia

Zyed Rouis

Corresponding Author

Zyed Rouis

Laboratory of Transmissible Diseases and Biological Active Substances, Faculty of Pharmacy, University of Monastir, Avenue Avicenne, 5000, Monastir, Tunisia, (phone: +216-97-568817; fax: +216-73-465754)

Laboratory of Transmissible Diseases and Biological Active Substances, Faculty of Pharmacy, University of Monastir, Avenue Avicenne, 5000, Monastir, Tunisia, (phone: +216-97-568817; fax: +216-73-465754)Search for more papers by this author
Ameur Elaissi

Ameur Elaissi

Pharmacognosy Laboratory, Faculty of Pharmacy, University of Monastir, Avenue Avicenne, 5000, Monastir, Tunisia.

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Nabil Ben Salem Abid

Nabil Ben Salem Abid

Laboratory of Transmissible Diseases and Biological Active Substances, Faculty of Pharmacy, University of Monastir, Avenue Avicenne, 5000, Monastir, Tunisia, (phone: +216-97-568817; fax: +216-73-465754)

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Mohamed Ali Lassoued

Mohamed Ali Lassoued

Laboratory of Galenic Pharmacy, Faculty of Pharmacy, University of Monastir, Avenue Avicenne, 5000, Monastir, Tunisia.

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Pier Luigi Cioni

Pier Luigi Cioni

Dipartimento di Chimica Bioorganica e Biofarmacia, Università di Pisa, Via Bonanno 33, I-56126 Pisa

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Guido Flamini

Guido Flamini

Dipartimento di Chimica Bioorganica e Biofarmacia, Università di Pisa, Via Bonanno 33, I-56126 Pisa

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Mahjoub Aouni

Mahjoub Aouni

Laboratory of Transmissible Diseases and Biological Active Substances, Faculty of Pharmacy, University of Monastir, Avenue Avicenne, 5000, Monastir, Tunisia, (phone: +216-97-568817; fax: +216-73-465754)

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First published: 11 April 2012
Citations: 11

Abstract

The chemical composition of the essential oils of five populations of Hypericum triquetrifolium Turra from Tunisia and their intraspecific variability were analyzed in detail by GC/MS. One hundred seventy-four compounds were identified, representing averages of 87.9 to 98.7% of the oil composition. The components are represented here by homologous series of monoterpene hydrocarbons, oxygenated monoterpenes, sesquiterpenes hydrocarbons, oxygenated sesquiterpenes, non-terpenic hydrocarbons, and others. Sesquiterpene hydrocarbons were the most abundant chemical compounds. Multivariate chemometric techniques, such as cluster analysis (CA) and principal-component analysis (PCA), were used to characterize the samples according to the geographical origin. By statistical analysis, the analyzed populations were classified into four chemotype groups.

Graphical Abstract

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