Direct accurate analysis of cysteinylated and glutathionylated precursors of 4-mercapto-4-methyl-2-pentanone and 3-mercaptohexan-1-ol in must by ultrahigh performance liquid chromatography coupled to mass spectrometry
- Concejero, B. 1
- Peña-Gallego, A. 1
- Fernandez-Zurbano, P. 2
- Hernández-Orte, P. 1
- Ferreira, V. 1
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1
Universidad de Zaragoza
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2
Instituto de Ciencias de la Vid y del Vino
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ISSN: 0003-2670
Ano de publicación: 2014
Volume: 812
Páxinas: 250-257
Tipo: Artigo
Outras publicacións en: Analytica Chimica Acta
Indicadores
Citas recibidas
JCR (Journal Impact Factor)
- Ano 2014
- Factor de impacto da revista: 4.513
- Factor de impacto sen autocitas: 4.239
- Article influence score: 1.067
- Cuartil maior: Q1
- Área: CHEMISTRY, ANALYTICAL Cuartil: Q1 Posición na área: 5/74 (Edición: SCIE)
SCImago Journal Rank
- Ano 2014
- Impacto SJR da revista: 1.544
- Cuartil maior: Q1
- Área: Biochemistry Cuartil: Q1 Posición na área: 86/438
- Área: Spectroscopy Cuartil: Q1 Posición na área: 7/72
- Área: Analytical Chemistry Cuartil: Q1 Posición na área: 11/110
- Área: Environmental Chemistry Cuartil: Q1 Posición na área: 17/108
Scopus CiteScore
- Ano 2014
- CiteScore da revista: 7.3
- Área: Spectroscopy Percentil: 92
- Área: Analytical Chemistry Percentil: 92
- Área: Environmental Chemistry Percentil: 89
- Área: Medicine (all) Percentil: 87
- Área: Biochemistry Percentil: 86
Dimensions
(Datos actualizados na data de 30-03-2023)- Total de citas: 15
- Citas recentes: 3
- Relative Citation Ratio (RCR): 0.73
- Field Citation Ratio (FCR): 1.39
Proxectos relacionados
Resumo
A direct method for the quantitative determination in grapes of four known precursors of the varietal aromas of the thiol character of wine has been optimized and validated. A small volume of centrifuged and filtered must is directly injected in the ultrahigh liquid performance chromatography coupled to mass spectrometry system (UHPLC-MS-MS). Must sugars and other early eluting polar compounds are diverted to the waste, not entering the ion source. Cysteinyl (CYS) and glutathionyl (GLU) precursors from 3-mercaptohexanol (3MH) and 4-mercapto-4-methylpentanone (4M4MP) are separated in 5 min rendering narrow peaks (W1/2 < 9 s). No system performance degradation has been noticed in series of more than 200 injections. A standard addition procedure using the consecutive injection of a spiked sample made it possible to satisfactorily correct for matrix effects, with recoveries very close to 100% in all cases. Intermediate reproducibility was satisfactory (RSD between 1 and 10%), except for the glutathione-4-mercapto-4-methyl-2-pentanone (GLUMP) precursor, for which this value is around 20%. The limits of detection in real-must were below 1 μg L-1 for the precursors of the 4M4MP and for cysteine-3-mercaptohexan-1-ol (CYSMH) and glutathione-3-mercaptohexan-1-ol (GLUMH), 2 and 7 μg L-1, respectively, what is enough for the determination of these precursors in musts of any variety. © 2014 Elsevier B.V. All rights reserved.