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A novel strategy for discriminating marine oils by using the positional distribution (sn-1, sn-2, sn-3) of omega-3 polyunsaturated fatty acids in triacylglycerols
Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa.
2018 (engelsk)Inngår i: Talanta: The International Journal of Pure and Applied Analytical Chemistry, ISSN 0039-9140, E-ISSN 1873-3573, Vol. 182, s. 32-37Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A novel strategy for discriminating genuine and adulterated marine oils is proposed. The strategy consists of i) determining the stereospecific distribution (sn-1, sn-2 and sn-3) of omega 3 polyunsaturated fatty acids (omega-3 PUFA) on the backbone of triacylglycerols by using liquid chromatography tandem mass spectrometry; ii) transforming the qualitative stereospecific information into quantitative data by means of a novel strategy; iii) analyzing the transformed data by principal component analysis. The proposed strategy was tested on pure oils (seal, salmon, cod liver, sandeel, blue whiting, herring), a mixture of blue whiting, herring, sandeel and Norway pout and some intentionally adulterated oils. In addition, some published krill oil data were analyzed to confirm the reliability of the new approach.

sted, utgiver, år, opplag, sider
Elsevier, 2018. Vol. 182, s. 32-37
Emneord [en]
Triacylglycerol, Positional distribution, Fish oil, Marine oil, Liquid chromatography mass spectrometry, ulteration
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-146549DOI: 10.1016/j.talanta.2018.01.030ISI: 000428229200003PubMedID: 29501159OAI: oai:DiVA.org:umu-146549DiVA, id: diva2:1205994
Tilgjengelig fra: 2018-05-15 Laget: 2018-05-15 Sist oppdatert: 2019-06-05bibliografisk kontrollert

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