التفاصيل البيبلوغرافية
| العنوان: |
Relevance of chromatographic efficiency in varietal authenticity verification of red wines based on their anthocyanin profiles: Interference of pyranoanthocyanins formed during wine ageing |
| المؤلفون: |
von Baer, D.1 dvonbaer@udec.cl, Rentzsch, M.2, Hitschfeld, M.A.1, Mardones, C.1, Vergara, C.1, Winterhalter, P.2 |
| المصدر: |
Analytica Chimica Acta. Jul2008, Vol. 621 Issue 1, p52-56. 5p. |
| مصطلحات موضوعية: |
*WINES, *GRAPES, *CHROMATOGRAPHIC analysis, *HIGH performance liquid chromatography |
| مستخلص: |
Abstract: The determination of the grape variety of aged red wines based on the ratio of acetylated and coumaroylated anthocyanins (R ac/coum) can be influenced by the formation of pyranoanthocyanins. Coelution of the pyranoanthocyanin pinotin A and the 3-coumaroylglucoside of malvidin can affect the obtained data for the R ac/coum values, which in turn could lead to a false classification of wine variety and rejection of the wines by the food authorities. Investigations using different reversed phase high performance liquid chromatography columns demonstrate the importance of a good chromatographic resolution of these analytes. [Copyright &y& Elsevier] |
| قاعدة البيانات: |
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