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首页> 外文期刊>Journal of chromatography, A: Including electrophoresis and other separation methods >Advanced liquid chromatography/mass spectrometry profiling of anthocyanins in relation to set of red wine varieties certified in Czech Republic
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Advanced liquid chromatography/mass spectrometry profiling of anthocyanins in relation to set of red wine varieties certified in Czech Republic

机译：与捷克共和国认证的红酒品种相关的花色苷的高级液相色谱/质谱分析

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Hyphenation of micro-liquid and ultra-performance liquid chromatography with a hybrid (QqTOF) tandem mass spectrometry was studied from the viewpoint of their applicability for monitoring of anthocyanin dyes in various cultivars and different vintages of red wine. After appropriate optimization both techniques proved to be suitable for this task. UHPLC system provided lower LOD and LOQ values as well as higher productivity and precision of retention parameters and peak areas with respect to micro-LC method. On the other hand, micro-LC method offers significant savings of mobile phase, less contamination of ion source of mass spectrometer and makes the nebulization process in electrospray much easier. In combination with principal component analysis (PCA), the method allows to elucidate long-term relations in a complete set of certified red wine cultivars grown in South Moravia (certified in Czech Republic until year 2005). Among the studied varieties Rubinet exhibit a specific anthocyanin profile. Especially interesting is a high content of 3-coumaroylglucoside-5-glucosides of malvidin and peonidin. Those dyes can be used as markers of artificial color enhancement. Principal component analysis applied to data processed with regard to enzymatic activity markedly facilitate classification among varieties. This approach allows resolution of teinturiers, variety Blaufr?nkish and partial classification of other varieties.
机译：从混合液（QqTOF）串联质谱联用技术研究了微液和超高效液相色谱的联用技术，因为它们适用于监测不同品种和不同年份的红酒中的花色苷染料。经过适当的优化后，两种技术均证明适合此任务。与微型液相色谱法相比，UHPLC系统提供了更低的LOD和LOQ值，以及更高的生产率和保留参数以及峰面积的精度。另一方面，微型液相色谱方法可节省大量流动相，减少质谱仪离子源的污染，并使电喷雾中的雾化过程更加容易。结合主成分分析（PCA），该方法可以阐明在南摩拉维亚（2005年之前获得捷克认证）的一整套经过认证的红酒品种的长期关系。在所研究的品种中，Rubinet显示出特定的花色苷特性。尤其令人感兴趣的是高含量的麦维汀和牡丹皮苷的3-香豆酰基葡糖苷-5-葡糖苷。这些染料可用作人工增色的标记。将主成分分析应用于处理酶活性的数据，可显着促进品种之间的分类。这种方法可以解决teinturiers，Blaufrnkish品种和其他品种的部分分类。

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