New phospholipid fatty acids from the marine spongeCinachyrella alloclada uliczka |
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Authors: | Gilles Barnathan Joseph Mirallès Emile M Gaydou Nicole Boury-Esnault Jean-Michel Kornprobst |
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Affiliation: | 1. Departement de Génie Chimique, ENSUT, Dakar, Sénégal 2. Département de Biologie Végétale, Faculté des Sciences, Université Cheikh Anta Diop, Dakar, Sénégal 3. Laboratoire de Phytochimie de Marseille, Faculté des Sciences et Techniques de Saint, Jér?me, 13397, Marseille Cedex, France 4. Centre d'Océanologie de Marseille, Station Marine d'Endoume, UA-CNRS 41, 13007, Marseille, France 5. Faculté de Pharmacie, Groupe SMAB, Université de Nantes, 01, rue G. Veil, 44035, 44035, Nantes Cedex, France
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Abstract: | The fatty acid composition of phospholipids from the Senegalese spongeCinachyrella alloclada was examined. Two new fatty acids not hitherto found in nature, namely 10,13-octadecadienoic acid and 16-tricosenoic acid,
were identified. 8-Hexadecenoic, 13-nonadecenoic and 5,9,13-trimethyltretradecanoic fatty acids were also found for the first
time in sponges. The latter compound (1.4% of the total fatty acid mixture), an isoprenoid fatty acid, accompanies the major
fatty acid 4,8,12-trimethyltridecanoic acid (19.7%). The monomethyl branched fatty acids (22%) identified include 23-methylpentacosanoic
acid (anteiso-26∶0), not previously observed in sponged. The major long-chain fatty acids encountered were the known 17-tetracosenoic
19-heptacosadienoic and 5,9,23-tricontatrienoic acid. Some sixty fatty acids were identified as methyl esters andN-acyl pyrrolidides by gas chromatography and gas chromatography/mass spectrometry. |
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