High-Resolution Mass Spectrometry Unravels a Broad Range of Bioactive Lipid Species in Octopus cyanea and Loligo sp. By-products from Southwestern Madagascar

International audiencePurposeThe lipid compositions of Octopus cyaneaand Loligosp. byproducts collected from southwestern Madagascar were studied in order to valorize the marine byproducts.MethodsLiquid chromatography-high-resolution mass spectrometry was used to characterize lipid species from O. cyaneaand Loligosp. byproduct extracts.ResultsA broad range of lipids was found in sample extracts. Although both O. cyaneaand Loligosp. belong to the cephalopod group, their byproducts exhibited different molecular lipid species. As an example, sphingosine ana-logs predominated in Loligosp. extracts, while glycerolip-ids and glycerophospholipids were the most prevalent in O. cyaneaextracts. However, ω3 and ω6 polyunsaturated fatty cids as well as plasmalogens were present in both marine byproducts. Some rare and new molecules were also found. For the first time, the characterization of several molecular lipid species of O. cyaneaand Loligosp. byproducts was performed.ConclusionOur qualitative analysis unravels a great diversity of lipids and new putative bioactive compounds that could be used for their nutritional values or therapeutic purposes.cids as well as plasmalogens were present in both marine byproducts. Some rare and new molecules were also found. For the first time, the characterization of several molecular lipid species of O. cyaneaand Loligosp. byproducts was performed.ConclusionOur qualitative analysis unravels a great diversity of lipids and new putative bioactive compounds that could be used for their nutritional values or therapeutic purposes