18 research outputs found
Structural analysis of ceramide-amino-ethyl-phosphonate in edible mediterranean cephalopods
Sphingophosphonolipids (SPnLs) were isolated from the mantle of 3 kinds
of cephalopod molluscs (Eledone moschata. Sepia officinalis, Todarodes
sagittatus) of the Aegean Sea. Their structures were confirmed by a
series of chemical and analytical methods such as gas chromatography,
gas chromatography-mass spectrometry and electrospray mass spectrometry.
They were identified as ceramide aminoethylphosphonate species.
According to the phosphonate-phosphorus determination, ceramide am
moethylphosphonate components were found to represent 15.9, 10.0 and
9.2% of total phospholipids, respectively. The long-chain bases (LCB)
are C16-C22 dihydroxy monoenoic and dienoic bases. The component fatty
acids are mainly palmitic acid (06:0), stearic acid (C18:0) and oleic
acid (C18:1 n-9) and in smaller quantities eicosaenoic acid (C20:1 n-9),
eicosapentaenoic acid (C20:5 n-3) and docosahexaenoic acid (C22:6 n-3).
It is of great interest that Sepia officinalis was found to contain
ceramide N-methylaminoethylphosphonate as minor phosphonolipid species