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

Gary Pickering; Andreea Botezatu; Yorgos Kotseridis; Debbie Inglis

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

Gary Pickering, Andreea Botezatu, Yorgos Kotseridis, Debbie Inglis

Research output: Book chapter/Published conference paper › Conference paper › peer-review

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Abstract

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 language	English
Title of host publication	6th International Metrology Conference proceedings
Place of Publication	Angers, France
Publisher	Comite Africain de Metrologie (CAFMET)
Pages	64-67
Number of pages	4
ISBN (Electronic)	9781510830745
ISBN (Print)	9781634395984 (Print on demand)
Publication status	Published - 2016
Event	6th International Metrology Conference: CAFMET 2016 - Hotel King Fahd Palace, Dakar, Senegal Duration: 21 Mar 2016 → 24 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)

Conference

Conference	6th International Metrology Conference
Country/Territory	Senegal
City	Dakar
Period	21/03/16 → 24/03/16
Other	The 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. Objectives: 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	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)

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title = "Quantifying food quality: The case of alkyl-methoxypyrazines in wine",

abstract = "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. ",

keywords = "methoxypyrazines, Wine, Survey, Wine quality, Ladybug taint, Wine flabour, Odorants, Coccinellidae, Multi diomensional gas chromatography",

author = "Gary Pickering and Andreea Botezatu and Yorgos Kotseridis and Debbie Inglis",

note = "Includes bibliographical references.; 6th International Metrology Conference : CAFMET 2016 ; Conference date: 21-03-2016 Through 24-03-2016",

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url = "https://web.archive.org/web/20160222200614/http://www.cafmet2016.com/en/, https://www.cafmet-conference.com/wp-content/uploads/2019/07/CAFMET2016-Programme.pdf",

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TY - GEN

T1 - Quantifying food quality

T2 - 6th International Metrology Conference

AU - Pickering, Gary

AU - Botezatu, Andreea

AU - Kotseridis, Yorgos

AU - Inglis, Debbie

N1 - Includes bibliographical references.

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

KW - methoxypyrazines

KW - Wine

KW - Survey

KW - Wine quality

KW - Ladybug taint

KW - Wine flabour

KW - Odorants

KW - Coccinellidae

KW - Multi diomensional gas chromatography

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M3 - Conference paper

SN - 9781634395984 (Print on demand)

SP - 64

EP - 67

BT - 6th International Metrology Conference proceedings

PB - Comite Africain de Metrologie (CAFMET)

CY - Angers, France

Y2 - 21 March 2016 through 24 March 2016

ER -

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

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Conference

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