Abstract
Ulva species, green macroalgae, are widely distributed across the globe, being one of the most heavily traded edible seaweeds. Nonetheless, although this genus has been largely used in scientific studies, its lipidome remains rather unexplored. The present study sheds light over the lipid profile of Ulva rigida produced in a land-based integrated multi-trophic aquaculture (IMTA) system using liquid chromatography coupled to high-resolution mass spectrometry for molecular lipid species identification. The lipidome of U. rigida revealed the presence of distinct beneficial n-3 fatty acids for human health, namely alpha-linoleic acid (ALA) and docosapentaenoic acid (DPA). A total of 87 molecular species of glycolipids, 58 molecular species of betaine lipids, and 57 molecular species of phospholipids were identified in the lipidome of U. rigida including some species bearing PUFA and with described bioactive properties. Overall, the present study contributes to the valorization and quality validation of sustainably farmed U. rigida.
Highlights
Edible macroalgae are a good source of beneficial compounds for human health that display distinct functional properties that stimulate interest to number of high-value chains (Holdt and Kraan 2011; Leal et al.2013; Abreu et al 2014; Rajauria 2015; Roohinejad et al 2016)
The aim of the present study is analyzed the lipidome of Ulva rigida (C.Agardh, 1823) from a land-based integrated multi-trophic aquaculture (IMTA) system using liquid chromatography high resolution mass spectrometry - based approach
0.84, which was considered to express the content of ash and other components as percentage of dry weight (DW)
Summary
Edible macroalgae are a good source of beneficial compounds for human health that display distinct functional properties that stimulate interest to number of high-value chains (e.g., medical, nutraceutical and cosmeceutical) (Holdt and Kraan 2011; Leal et al.2013; Abreu et al 2014; Rajauria 2015; Roohinejad et al 2016). Ulva spp. have long been listed in FAO as one of the main macroalgae for commercial use (Naylor 1976). These popular green seaweeds can be used fresh, dried, or in liquid extracts, either for direct or processed consumption worldwide (McHugh 2003; Barriga et al 2017). Framework (Bolton et al 2008; Msuya and Neori 2008; Marinho et al 2013; Shpigel et al 2017) This innovative and sustainable culture approach mimics the natural ecosystem of species from different trophic levels, associating the production of fed species
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