Study of the lipid composition of the marine sponges Agelas dispar, Chondrilla Nocula, Aplisynna fulva, Desmapsamma anchorata and Topsentia ophiraphidites
Marine sponges, Lipids, Fatty acids, Gas chromatography (GC)
Fatty acids (FAs) are naturally occurring metabolites ubiquitous in all organisms, as well as marine sponges accumulate (FAs). Recent interest began in the 1970s, and has increased since sponges accumulate (FAs) with very rich chemistry and are strong from a diverse assortment of unprecedented chemical structures. The study of spongy lipids is just as important as other secondary metabolites . Thus, the lipid profile of six sponges from the northeast coast of Brazil were investigated and more than 100 (FAs) were identified. Among these, some unusual for the species of sponges studied such as 10-Undecenoic acid (C11: 1) in was identified together with the cyclo-3-cyclopropaneoctanoic acid with three-carbon cycle in the aliphatic chain and 3,7,11 , 15-tetramethyl Hexadecanoic (phytanic) polymers in the sponge Chondrilla nucula. The structures were confirmed by gas chromatography coupled to GC-MS/MS mass spectrometry through their methyl esters, using 2 (FAs) and 4 research libraries standards and their identification was made through similarity and analysis of mass spectra. Other identified phospholipid (FAs) include 2-hydroxy-16-methylheptadecanoic acid, 2-hydroxypentadecanoic acid, 10-methyl dodecanoic acid. In addition, Δ5.9 (AG) (5Z, 9Z) -15-methyl-5,9-hexadecadienoic acid and (5Z, 9Z) -5,9-octadecadienoic acid. These findings demonstrate the ability of these organisms to synthesize (FAs) considerably different lipids from other living organisms.