Structure and cardioprotective activities of polar lipids of olive pomace, olive pomace-enriched fish feed and olive pomace fed gilthead sea bream (Sparus aurata)
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Total lipids of olive pomace (OP), olive pomace diet (OP diet), fish oil diet (FO diet) and fish filets of farmed gilthead sea bream (fish fed with FO diet and OP diet respectively) were extracted and separated into polar (TPL) and neutral (TNL) lipids. All samples were assessed for their in vitro activity against washed rabbit platelets aggregation induced by platelet activating factor (PAF) and they were further analyzed by electrospray-mass spectrometry. The high levels of palmitic (16:0), oleic (18:1 cis ω − 9), linoleic (18:2 ω − 6) and docosapentaenoic acid (DPA 22:5 ω − 3) contained in both OP and FO diets are reflected to the gilthead sea breams fed with the individual diet respectively, while the gilthead sea bream fed with FO diet displays a decrease in DPA. All samples contained various glycerophospholipids species. Two PE species were identified in OP, OP diet and fish fed with OP diet and not in FO diet, while that might be an indication that these substances are likely to be the key polar phospholipids that have the ability to be in vitro PAF inhibitors, i.e. inhibit the formation of atherosclerotic plaques in blood arteries.
Sioriki , E , Smith , T K , Demopoulos , C A & Zabetakis , I 2016 , ' Structure and cardioprotective activities of polar lipids of olive pomace, olive pomace-enriched fish feed and olive pomace fed gilthead sea bream ( Sparus aurata ) ' , Food Research International , vol. 83 , pp. 143-151 . https://doi.org/10.1016/j.foodres.2016.03.015
Food Research International
© 2016, Elsevier. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at www.sciencedirect.com / https://dx.doi.org/10.1016/j.foodres.2016.03.015
DescriptionThis work is supported in part by the aquaculture company NIREUS SA and TKS's Wellcome Trust project grant 093228.
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