Quantifying food quality: The case of alkyl-methoxypyrazines in wine

Gary Pickering, Andreea Botezatu, Yorgos Kotseridis, Debbie Inglis

    Research output: Book chapter/Published conference paperConference paperpeer-review

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    Wine is the oldest alcoholic beverage, and the most commonly consumed in many countries, including France, Sweden, Italy and Argentina. Its sensory quality is dependent on the relative prevalence of the 200+ odorants known to influence wine flavor. Many of these odor-active compounds exist at trace concentrations, yet still exhibit potent effects due to their low detection thresholds in humans. An important example is 3-alkyl-2-methoxypyrazines (MPs), which are capable of tainting both grape juice and wine, yet possess sensory thresholds well below the sensitivity of established analytical methods. Here we describe the development of a method based on multi dimensional gas chromatography coupled with mass spectrometry and headspace solid phase microextraction (SPME-MDGCMS) that allows for the measurement of MPs in wine down to the low ng/L range.
    Original languageEnglish
    Title of host publication6th International Metrology Conference proceedings
    Place of PublicationAngers, France
    PublisherComite Africain de Metrologie (CAFMET)
    Number of pages4
    ISBN (Electronic)9781510830745
    ISBN (Print)9781634395984 (Print on demand)
    Publication statusPublished - 2016
    Event6th International Metrology Conference: CAFMET 2016 - Hotel King Fahd Palace, Dakar, Senegal
    Duration: 21 Mar 201624 Mar 2016
    https://web.archive.org/web/20160222200614/http://www.cafmet2016.com/en/ (Conference website)
    https://www.cafmet-conference.com/wp-content/uploads/2019/07/CAFMET2016-Programme.pdf (Conference program)


    Conference6th International Metrology Conference
    OtherThe African Committee of Metrology (CAFMET) is organizing the 6th Interna-
    tional Conference of Metrology in Africa – CAFMET 2016, which is a forum
    to share information, ideas and experiences in Metrology and Quality Ma-
    nagement, during conferences, open discussions, technical workshops and
    exhibition booths.
    Promote communication between industry, government agencies, institu-
    tions of higher education and research laboratories in fields of measurement
    and quality.
    Present the evolution of measurement methods in energy, environment,
    food, health and research.
    Internet address


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