Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1169289 | Analytica Chimica Acta | 2008 | 5 Pages |
Abstract
The determination of the grape variety of aged red wines based on the ratio of acetylated and coumaroylated anthocyanins (Rac/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 Rac/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.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
D. von Baer, M. Rentzsch, M.A. Hitschfeld, C. Mardones, C. Vergara, P. Winterhalter,