Document Detail


Determination and Structural Elucidation of Triacylglycerols in Krill Oil by Chromatographic Techniques.
MedLine Citation:
PMID:  24190513     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The content of triacylglycerols (TAG) in krill oil is generally omitted from the labels of commercial supplements and unacknowledged in studies aimed at proving its health benefits. The present study demonstrates that TAG compounds, in addition to phospholipids and lysophospholipids, are an important lipid class in pure krill oil. The fatty acid composition of TAG molecules from krill oil and their distribution on the backbone of TAG structures were determined by gas chromatography and liquid chromatography tandem mass spectrometric, respectively. The content of omega 3 polyunsaturated fatty acids (n-3 PUFA) was similar to those reported in the literature for fish oil. It was estimated that 21 % of n-3 PUFA were at the sn-2 position of TAG structures. To our knowledge, this is the first determination and structural characterization of TAG in pure krill oil supplements.
Authors:
Pedro Araujo; Han Zhu; Joar Fjørtoft Breivik; Jan Idar Hjelle; Yingxu Zeng
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-11-5
Journal Detail:
Title:  Lipids     Volume:  -     ISSN:  1558-9307     ISO Abbreviation:  Lipids     Publication Date:  2013 Nov 
Date Detail:
Created Date:  2013-11-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0060450     Medline TA:  Lipids     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
National Institute of Nutrition and Seafood Research (NIFES), PO Box 2029, Nordnes, 5817, Bergen, Norway, pedro.araujo@nifes.no.
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