NMR metabolic fingerprinting and chemometrics driven authentication of Greek grape marc spirits
NMR metabolic fingerprinting and chemometrics driven authentication of Greek grape marc spirits
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DOI：
10.1016/j.foodchem.2015.10.002
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发表时间：
2016-04-01
期刊：
影响因子：
8.8
通讯作者：
Zervou, Maria
中科院分区：
文献类型：
--
作者：
Fotakis, Charalambos;Zervou, Maria
核磁共振代谢组学被用来调查57个希腊烈酒的四个本土和四个国际品种从马其顿（tsipouro）和克里特岛（tsikoudia），以建立其真实性。首次评估了Romeiko、Malvasia、Xinomavro、Sangiovese和Nebbiolo品种的代谢特征。WET 1D序列用于提高灵敏度并揭示次要代谢物。PCA被应用于描绘样品的来源，并关联代谢产物与不同的品种特征，如酸度的桑娇维塞，过熟的葡萄收获的Romeiko，强烈的身体赤霞珠，轻身体的Xinomavro和谷氨酸Malvasia。赤霞珠葡萄酒从希腊北部向克里特岛的迁移是有框架的。监测多品种烈酒引入2-乙烯基乙醇作为酵母选择的标记。将OPLS-DA应用于来自同一葡萄园的样品，从而突出显示基因型标记。因此，研究结果解决了典型性和可追溯性的概念，在葡萄渣酒。(C)2015爱思唯尔有限公司版权所有。
NMR metabolomics was used to investigate 57 Greek spirits of four indigenous and four international varieties from Macedonia (tsipouro) and Crete (tsikoudia) to establish their authenticity. The metabolic profile of Romeiko, Malvasia, Xinomavro, Sangiovese and Nebbiolo varieties was assessed for the first time. The WET1D sequence was used to improve sensitivity and unveil minor metabolites. PCA was applied to delineate the provenance of samples and associate metabolites with distinct varietal characteristics, such as the acidity of Sangiovese, the overripe grapes harvesting of Romeiko, the intense body of Cabernet Sauvignon, the light body of Xinomavro and the glutamic acid for Malvasia. The migration of Cabernet Sauvignon from north Greece to Crete was framed. Monitoring multi-varietal spirits introduced 2-vinylethanol as a marker for yeast selection. OPLS-DA was applied to samples from the same vineyard, thus highlighting genotypic markers. Consequently, the findings address the concepts of typicity and traceability in grape marc spirits. (C) 2015 Elsevier Ltd. All rights reserved.