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Optimizing headspace sampling temperature and time for analysis of volatile oxidation products in fish oil

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Authors:
  • Rørbæk, Karen ;
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    Department of Biotechnology, Technical University of Denmark
  • Jensen, Benny
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    Department of Biotechnology, Technical University of Denmark
DOI:
10.1007/s11746-997-0085-1
Abstract:
Headspace-gas chromatography (HS-GC), based on adsorption to Tenax GR(R), thermal desorption and GC, has been used for analysis of volatiles in fish oil. To optimize sam sampling conditions, the effect of heating the fish oil at various temperatures and times was evaluated from anisidine values (AV) and HS-CC. AV indicated sample degradations at 90 degrees C but only small alterations between 60 and 75 degrees C. HS-GC showed increasing response with temperature and rime. Purging at 75 degrees C for 45 min was selected as the preferred sampling condition for oxidized fish oil.
Type:
Journal article
Language:
English
Published in:
Journal of the American Oil Chemists Society, 1997, Vol 74, Issue 12, p. 1607-1609
Keywords:
Fish oil; Headspace sampling; HS-GC; Lipid oxidation; Thermal degradation; Volatiles
Main Research Area:
Science/technology
Publication Status:
Published
Review type:
Peer Review
Submission year:
1997
Scientific Level:
Scientific
ID:
2185774543

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