IDEAS home Printed from https://ideas.repec.org/a/taf/japsta/v43y2016i10p1765-1793.html
   My bibliography  Save this article

Improving the estimations of fatty acids in several Andalusian PDO olive oils from NMR spectral data

Author

Listed:
  • M. I. Sánchez-Rodríguez
  • E. M. Sánchez-López
  • A. Marinas
  • J. M. Caridad
  • F. J. Urbano
  • J. M. Marinas

Abstract

The aim of this paper is to determine the fatty acid profile of diverse Andalusian extra-virgin olive oils from different protected designations of origin (PDO). The available data for the statistical multivariate analysis have been obtained from gas chromatography (GC, used as classical reference analytical technique) and nuclear magnetic resonance (NMR) spectroscopy : -NMR and -NMR (in the carbonyl, C-16 y aliphatic carbon regions). The diverse percentages of fatty acids approximated by the above-mentioned chemical procedures are summarized by using a statistical treatment, which presents a some weighted averages to obtain the closest fatty acid profile to the one provided by the GC reference technique, with weights being inversely proportional to some measures of the calibration errors. Besides, the work shows that the PDO of an olive oil conditions the NMR region ( -NMR or carbonyl, C-16 or aliphatic -NMR) which provides the best estimation of each type of fatty acid. Finally, procedures of cross-validation are implemented in order to generalize the previous results.

Suggested Citation

  • M. I. Sánchez-Rodríguez & E. M. Sánchez-López & A. Marinas & J. M. Caridad & F. J. Urbano & J. M. Marinas, 2016. "Improving the estimations of fatty acids in several Andalusian PDO olive oils from NMR spectral data," Journal of Applied Statistics, Taylor & Francis Journals, vol. 43(10), pages 1765-1793, August.
    • Handle: RePEc:taf:japsta:v:43:y:2016:i:10:p:1765-1793
    DOI: 10.1080/02664763.2015.1119808
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1080/02664763.2015.1119808
    Download Restriction: Access to full text is restricted to subscribers.
    File URL: https://libkey.io/10.1080/02664763.2015.1119808?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:taf:japsta:v:43:y:2016:i:10:p:1765-1793. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Chris Longhurst (email available below). General contact details of provider: http://www.tandfonline.com/CJAS20 .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.