High-resolution ¹H magic angle spinning NMR spectroscopy of intact Arctic char (Salvelinus Alpinus) muscle. Quantitative analysis of n-3 fatty acids, EPA and DHA

J Agric Food Chem. 2010 Oct 27;58(20):10799-803. doi: 10.1021/jf103338j. Epub 2010 Sep 28.

Abstract

The lipid and small metabolite profiles from intact muscles of Arctic char were investigated using (1)H high-resolution magic angle spinning ((1)H HR-MAS) NMR spectroscopy. Not only the total n-3 fatty acid content but also the eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) contents of the muscle were obtained from the (1)H HR-MAS NMR spectra without pretreatment of the tissue or lipophilic extraction. A number of small metabolites could also be observed, where creatine/phosphocreatine, anserine and taurine were the most abundant. Thus, the use of (1)H HR-MAS NMR led to simplified analysis techniques that can give direct information on the nutritional value of the fish.

Publication types

  • Evaluation Study

MeSH terms

  • Animals
  • Docosahexaenoic Acids / analysis*
  • Docosahexaenoic Acids / metabolism
  • Eicosapentaenoic Acid / analysis*
  • Eicosapentaenoic Acid / metabolism
  • Fatty Acids, Omega-3 / analysis*
  • Fatty Acids, Omega-3 / metabolism
  • Fish Products / analysis*
  • Magnetic Resonance Spectroscopy / instrumentation
  • Magnetic Resonance Spectroscopy / methods*
  • Muscle, Skeletal / chemistry*
  • Muscle, Skeletal / metabolism
  • Trout / metabolism*

Substances

  • Fatty Acids, Omega-3
  • Docosahexaenoic Acids
  • Eicosapentaenoic Acid