Stability of omega-3 LC-PUFA-rich photoautotrophic microalgal oils compared to commercially available omega-3 LC-PUFA oils

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[1] [1,Ryckebosch, Eline
[2] 1,Bruneel, Charlotte
[3] 1,Termote-Verhalle, Romina
[4] 1,Lemahieu, Charlotte
[5] Muylaert, Koenraad
[6] Van Durme, Jim
[7] Goiris, Koen
[8] 1,Foubert, Imogen
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Foubert, I. (Imogen.Foubert@kuleuven-kulak.be) | 1600年 / American Chemical Society卷 / 61期
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Microalgae are the primary producers of omega-3 LC-PUFA; which are known for their health benefits. Their oil may thus be a potential alternative for fish oil. However; oxidative and hydrolytic stability of omega-3 LC-PUFA oils are important parameters. The purpose of this work was therefore to evaluate these parameters in oils from photoautotrophic microalgae (Isochrysis; Phaeodactylum; Nannochloropsis gaditana; and Nannochloropsis sp.) obtained with hexane/isopropanol (HI) and hexane (H) and compare them with commercial omega-3 LC-PUFA oils. When the results of both the primary and secondary oxidation parameters were put together; it was clear that fish; tuna; and heterotrophic microalgae oil are the least oxidatively stable oils; whereas krill oil and the microalgae oils performed better. The microalgal HI oils were shown to be more oxidatively stable than the microalgal H oils. The hydrolytic stability was shown not to be a problem during the storage of any of the oils. © 2013 American Chemical Society;
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