期刊
ANALYTICA CHIMICA ACTA
卷 621, 期 1, 页码 52-56出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2007.11.034
关键词
high performance liquid chromatography (HPLC) column efficiency; wine anthocyanidins; pyranoanthocyanins; Cabernet Sauvignon
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. (C) 2007 Published by Elsevier B.V.
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