1. New fatty acids from Colombian Caribbean Sea sponges
- Author
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Oscar Osorno, Wilson Rodríguez, Carmenza Duque, Sven Zea, and Freddy A. Ramos
- Subjects
chemistry.chemical_classification ,biology ,Petromica ciocalyptoides ,Halichondrida ,Halichondria ,Fatty acid ,Didiscus oxeata ,Halichondria magniconulosa ,Dragmaxia undata ,biology.organism_classification ,Biochemistry ,chemistry ,Botany ,Gas chromatography ,Ecology, Evolution, Behavior and Systematics - Abstract
The fatty acid composition of whole phospholipids from marine sponges collected from the Colombian Caribbean Sea was determined as part of our studies on the order Halichondrida: Halichondria magniconulosa , Halichondria lutea, Petromica ciocalyptoides, Axinyssa ambrosia, Didiscus oxeata and Dragmaxia undata . Structure elucidation was accomplished by means of gas chromatography retention parameters and GCMS. Eight new fatty acids were identified by their methyl esters and N-acylpyrrolidide derivatives (i.e. 5-methyl-6-octadecenoic, 16-methyl-11-heptadecenoic, 8-methyl-4-tetracosenoic, 8,17-dimethyl-5-octadecenoic, 23-methyl-8-tetracosenoic, 20-methyl-18-tetracosenoic, 4,17-tetracosadienoic and 22,27-dimethyl-5,9-octacosadienoic acids). These findings establish alternative fatty acid biosynthetic possibilities for these organisms.
- Published
- 2010
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