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Comparison of the Chemical Composition of “Cystoseira sedoides (Desfontaines) C. Agardh” Volatile Compounds Obtained by Different Extraction Techniques

Naima Bouzidi, Halima Seridi, Yasmina Daghbouche, Louis Piovetti and Mohamed El Hattab

Laboratory of Natural Products Chemistry and of Biomolecules, University of Blida 1, P.O. Box 270 - Blida 09000, Algeria

Medicinal and Aromatic Plants Laboratory, University of Blida 1, P.O. Box 270 – Blida 09000, Algeria

Laboratory of Biological Oceanography and Marine Environment - Houari Boumediene University of Sciences and Technology, P.O. Box 32 EL ALIA 16111 Bab Ezzouar Algiers, Algeria

MAPIEM Laboratory - University of the South, Toulon -Var, University Street, P.O. Box 20132, 83957 La Garde Cedex, France

Abstract: The volatile fraction of the brown alga Cystoseira sedoides (Desfontaines) C.Agardh is prepared from the crude extract through the following three extraction methods: Hydrodistillation (HD), focused microwave assisted hydrodistillation (FMAHD) and supercritical fluid extraction (SFE). The volatile fractions are analyzed by gas chromatography-flame ionization detector-mass spectrometry (GC-FID-MS), the chemical components are identified on the basis of the comparison of their retention indices with literature and their mass spectra with those reported in commercial databases. The chemical composition of the volatile fractions obtained by different extraction techniques fall into three major chemical classes: fatty acids and derivatives, sesquiterpenes, and hydrocarbons and derivatives. Others Compounds belonging to different chemical classes are found in that chemical composition.

Keywords: Cystoseira sedoides ; volatile fraction; hydrodistillation; focused microwave; supercritical fluid extraction. © 2015 ACG Publications. All rights reserved.