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Rapid determination of sotolon in fortified wines using a miniaturized liquid-liquid extraction followed by LC-MS/MS analysis
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Orientador(es)
Resumo(s)
Sotolon (4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one) is a powerful odorant usually pointed out as being responsible not
only for the characteristic curry notes of the finest fortified wines but also for the off-flavour notes in prematurely oxidized white
wines. Most methods reported in literature for quantifying sotolon in wines are quite laborious and use large volumes of organic
solvents. *us, in the present study, the development of a simple, fast, and environment-friendly method for the quantification of
sotolon in fortified wine is herein presented. *e proposed method uses a single-step liquid-liquid extraction followed by RP-LC MS/MS and was optimized using a full factorial design. *e method showed good linearity (R2 � 0.9999), intra- and interday
precision lower than 10% RSD, recovery of about 95%, and high sensitivity (LOQ of 0.04 μg/L). *e method was applied to analyse
44 fortified wines from different styles (from dry to sweet wines) and ages (3–115 years old), and it was found that it covers the
concentration range usually found for this compound in this kind of alcoholic beverages, which was found to be within
6.3–810 μg/L. *us, it can be concluded that this method can be used as an accurate tool for the rapid analysis of sotolon, since the
early stages of its formation up to long ageing periods.
Descrição
Palavras-chave
Sotolon Fortified wines Miniaturized liquid-liquid extraction LC-MS/MS analysis . Escola Superior de Tecnologias e Gestão Faculdade de Ciências Exatas e da Engenharia
Contexto Educativo
Citação
Pereira, V., Leça, J. M., Gaspar, J. M., Pereira, A. C., & Marques, J. C. (2018). Rapid determination of sotolon in fortified wines using a miniaturized liquid-liquid extraction followed by LC-MS/MS analysis. Journal of analytical methods in chemistry, 2018. https://doi.org/10.1155/2018/4393040
Editora
Hindawi