New 2-hydroxy fatty acids in the caribbean urchin tripneustes esculentus

Néstor M. Carballeira, Fathi Shalabi, Morayma Reyes

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The novel α-hydroxy fatty acids 2-hydroxy-13-docosenoic acid [1a], 2- hydroxy-14-tricosenoic acid [2a], and 2-hydroxy-15 -tetracosenoic acid [3a] were identified in the Caribbean urchin, Tripneustes esculentus. The double-bond positions of the novel α-hydroxy fatty acids were determined by derivatization with dimethyl disulfide and shown to correlate with the corresponding non-hydroxy lated mono-unsaturated fatty acids, 13-docosenoic acid, 14- tricosenoic acid, and 15-tetracosenoic acid also present in T. esculentus. The total fatty acid composition of the urchin is also reported where cis-5 -olefinic fatty acids such as 5,9-octadecadienoic acid and 5,11 -eicosadienoic acid were found to predominate in the mixture. Cholesterol was the predominant sterol in T. esculentus.

Original languageEnglish (US)
Pages (from-to)614-619
Number of pages6
JournalJournal of Natural Products
Issue number5
StatePublished - May 1 1994
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine
  • Organic Chemistry


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