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Recognition and quantitation of cis-vaccenic and eicosenoic fatty acids in olive oils by 13C nuclear magnetic resonance spectroscopy

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Lipids

Abstract

The presence of 11-cis monoenoic fatty acids was detected in olive oil samples by means of 13C nuclear magnetic resonance spectroscopy, and the positional isomery on the glycerol backbone was derived. The 11-cis vaccenic and eicosenoic fatty acid resonances were recognized and the amounts of the fatty acids quantified. For comparison purposes, a quantitative analysis was also made by gas chromatography.

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Abbreviations

FAME:

fatty acid methyl esters

GC:

gas chromatography

NMR:

nuclear magnetic resonance

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Authors and Affiliations

  1. Dipartimento di Scienze Chimiche, Universitá di Cagliari, Complesso Universitario di Monserrato, 09042, Cagliari, Italy

    P. Scano, M. Casu, A. Lai & G. Saba

  2. Dipartimento di Biologia Sperimentale, Sez. Patologia Sperimentale, Universitá di Cagliari, Complesso Universitario di Monserrato, 09042, Cagliari, Italy

    M. A. Dessi, M. Deiana & F. P. Corongiu

  3. Consorzio Interprovinciale per la Frutticoltura di Cagliari, Oristano, Nuoro, Italy

    G. Bandino

Authors
  1. P. Scano
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  2. M. Casu
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  3. A. Lai
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  4. G. Saba
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  5. M. A. Dessi
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  6. M. Deiana
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  7. F. P. Corongiu
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  8. G. Bandino
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Corresponding author

Correspondence to A. Lai.

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Scano, P., Casu, M., Lai, A. et al. Recognition and quantitation of cis-vaccenic and eicosenoic fatty acids in olive oils by 13C nuclear magnetic resonance spectroscopy. Lipids 34, 757–759 (1999). https://doi.org/10.1007/s11745-999-0422-4

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  • DOI: https://doi.org/10.1007/s11745-999-0422-4

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