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New phospholipid fatty acids from the Caribbean spongeEctyoplasia ferox

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Lipids

Abstract

The phospholipid fatty acids from the Caribbean spongeEctyoplasia ferox were studied. The novel fatty acids 25-methyl-5,9-heptacosadienoic (1) and 26-methyl-5,9-heptacosadienoic (2) were identified in 3.4 and 2.0% abundance, respectively, representing the longest set of Δ5,9iso andanteiso acids yet isolated from a marine sponge. The new acid 10,13-dimethyltetradecanoic (3), the unusual acid 15-methyl-11-hexadecenoic (4) and the also novel acid 9-methyl-11-hexadecenoic (5) were also identified inE. ferox. The principal sterols isolated fromE. ferox were 24-ethylcholest-5-en-3β-ol (46%) and 24(R)-methylcholesta-5,22-dien-3β-ol (14%).

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Abbreviations

GC-MS:

gas chromatography-mass spectrometry

HPLC:

high pressure liquid chromatography

PC:

phosphatidylcholine

PE:

phosphatidylethanolamine

PG:

phosphatidylglycerol

PI:

phosphatidylinositol

PLC:

preparative layer chromatography

PS:

phosphatidylserine

TLC:

thin-layer chromatography

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Authors and Affiliations

  1. Department of Chemistry, University of Puerto Rico, 00931, Rio Piedras, Puerto Rico

    Néstor M. Carbelleira & Marie E. Maldonado

Authors
  1. Néstor M. Carbelleira
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  2. Marie E. Maldonado
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Carbelleira, N.M., Maldonado, M.E. New phospholipid fatty acids from the Caribbean spongeEctyoplasia ferox . Lipids 24, 371–374 (1989). https://doi.org/10.1007/BF02535143

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  • DOI: https://doi.org/10.1007/BF02535143

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