کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7585190 | 1492035 | 2018 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Assessment of oxidation compounds in oaked Chardonnay wines: A GC-MS and 1H NMR metabolomics approach
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Assessment of oxidation compounds in oaked Chardonnay wines: A GC-MS and 1H NMR metabolomics approach Assessment of oxidation compounds in oaked Chardonnay wines: A GC-MS and 1H NMR metabolomics approach](/preview/png/7585190.png)
چکیده انگلیسی
The oxidation of oaked Chardonnay wine during long-term storage was studied by headspace solid-phase microextraction coupled to gas chromatography-mass spectrometry (HS-SPME-GC/MS) and proton (1H) nuclear magnetic resonance (NMR) spectroscopy. Three distinct groups of wine were defined based on the browning index: control, least oxidized (OX1) and most oxidized (OX2). HS-SPME-GC/MS and 1H NMR spectroscopy enabled the profiling of a total of 155 compounds in all wine samples including aldehydes, ketones, esters, polyphenols, among other classes. Acetaldehyde, 3-methylbutanal, 2-phenylacetaldehyde, methional, 3-penten-2-one, β-damascenone and four unknown carbonyl compounds showed the highest percentage of variation with oxidation. Novel oxidation markers found in this work include pentanal, 3-methyl-2-butanone, 3-penten-2-one, 2-methyltetrahydrofuran-3-one, β-damascenone, ethyl 2-methylbutanoate and vinyl decanoate. In addition, several correlations between polyphenols, aroma compounds and absorbance at 420â¯nm (A420) were observed, suggesting the occurrence of chemical reactions with a possible impact in wine browning.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 257, 15 August 2018, Pages 120-127
Journal: Food Chemistry - Volume 257, 15 August 2018, Pages 120-127
نویسندگان
Joana Pinto, Ana Sofia Oliveira, Joana Azevedo, Victor De Freitas, Paulo Lopes, Isabel Roseira, Miguel Cabral, Paula Guedes de Pinho,