Volume 13, Number 2-3, Mars-Juin 2006
|Page(s)||190 - 194|
|Published online||15 March 2006|
Acides gras et insaponifiables d’extraits obtenus à partir des sommités fleuries et des rhizomes de Vetiveria nigritana (Benth.) Stapf, Poaceae
Laboratoire de pharmacognosie et phytothérapie, Faculté de Pharmacie, 28 Pl. H. Dunant, Clermont-Ferrand, F-63100
2 Laboratoire de chimie des huiles essentielles, Université Blaise Pascal, Campus des Cézeaux, Aubière, F-63177
Accepté : 14 Juin 2006
Extracts of Vetiveria nigritana flowering tops and rhizomes were analyzed by mean of GC/MS for their fatty acids and unsaponifiable components. In flowering tops extract, the acid fraction is characterized by the presence of palmitic acid and other long chain fatty acids (until C34). Unsaponifiable contains a high percentage of sterols (43.89%, mainly b-sitosterol). In rhizomes extract, acid fraction is composed by a high amount of typical organic acids of the genus Vetiveria and by a low quantity of fatty acids. Unsaponifiable fraction is characterized by the presence of a great percentage of sesquiterpenic derivatives (54.8%), and of sterols in low amount (13.7%).
Key words: Vetiveria nigritana / fatty acids / unsaponifiable / flowering tops / rhizomes / GC/MS
© John Libbey Eurotext 2006
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