title: Unusually high levels of eicosatetraenoic, eicosapentaenoic, and docosahexaenoic fatty acids in Palestinian freshwater sponges.
abstract: The fatty acid compositioin of three freshwater sponges-Ephydatia syriaca, Nudospongilla sp., and Cortispongilla barroisi-were studied. Twenty principal fatty acids, and unusually high levels of eicosatetraenoic (5,8,11,14-20:4 up to 10.1% of the total acid mixture), eicosapentaenoic (5,8,11,14,17-20:5 up to 11.6%), and docosahexaenoic acids (4,7,10,13,16,19-22:6 up to 11.8%) were detected. The only demospongic acid found was 5,9,17-hexacosatrienoic acid (1.8-3.7%).
authors.affiliation: Department of Organic Chemistry, Hebrew University of Jerusalem, Israel.
authors.forename: V M
authors.initials: VM
authors.lastname: Dembitsky
authors.forename: T
authors.initials: T
authors.lastname: Rezanka
mesh_terms: D000818:Animals; D004281:Docosahexaenoic Acids / Q000032:analysis*; D015118:Eicosapentaenoic Acid / Q000032:analysis*; D005618:Fresh Water; D008401:Gas Chromatography-Mass Spectrometry; D007557:Israel; D011161:Porifera / Q000737:chemistry*; D013045:Species Specificity
chemical_list: D004281:Docosahexaenoic Acids; D015118:Eicosapentaenoic Acid