Volatile Components of the Phaeophyceae Hormophysa cuneiformis Growing Along Qatar Coasts

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Author Al Easa, H. S. [هالة سلطان العيسى] en_US
Author Kornprobst, Jean-Michel [جين ميشيل كورنبروبست] en_US
Author El Hattab, Mohamed [محمد الحطاب] en_US
Author Tabaries, Annie [آني تبريس] en_US
Author Piovetti, Louis [لوس بيوفيتي] en_US
Available date 2009-11-25T15:33:11Z en_US
Publication Date 2007 en_US
Citation Qatar University Science Journal, 2007, Vol. 27, Pages 29-34. en_US
URI http://hdl.handle.net/10576/10311 en_US
Abstract The present work deals with the study on volatile compounds from the brown alga Hormophysa cuneiformis collected from the Northwest coast of Qatar on May 2002. Two extraction methods have been used: conventional hydrodistillation of the crude diethyl ether extract of alga and supercritical CO2 extraction of the same crude extract with two different stationary phases for the trapping. The obtained oils were examined by GC/MS coupling experiments and the chemical compositions obtained from both methods were compared. Their major constituents were: squalene described for the first time from a macroalga, fatty acids and corresponding esters. It must be pointed out absence of volatile C-l 1 hydrocarbons which are commonly presents in brown algae might be due to the collecting period of the alga (May) which probably favors the metabolism of unsaturated fatty acids precursors of these C-l 1 hydrocarbons. The presence, in a small amount, of a C-l 1 sulphur compound with a near related biogenesis of the volatile C-ll hydrocarbons is in agreement with this hypothesis. en_US
Language en en_US
Publisher Qatar University en_US
Subject Chemistry en_US
Subject الكيمياء ar
Title Volatile Components of the Phaeophyceae Hormophysa cuneiformis Growing Along Qatar Coasts en_US
Alternative Title المواد المتطايرة من الطحلب البني هور موفيسا كينوفورميس الذي ينمو على السواحل القطرية ar
Type Article en_US
Pagination 29-34 en_US
Volume Number 27 en_US


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