Kinetics of ellagitannin extraction from oak wood using white wine

• Autores: M.G. Marinov, E.D. Dimitrova, Jean-Louis Puech
• Localización: Journal of wine research, ISSN 0957-1264, Vol. 8, Nº 1, 1997, págs. 29-40
• Idioma: inglés
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• Resumen

  • This paper presents the results of an investigation made on the extraction of ellagitannins from oak wood(Quercus robur L.) using Chardonnay white wine in a constant flow‐through reactor. Through high‐pressure liquid chromatography eight ellagitannins were separated and quantitatively determined (roburin A‐E, grandinin, vescalagin, castalagin). An equation has been derived which gives a reliable description of the kinetics of the extraction of individual ellagitannins. It has been established that castalagin and vescalagin are the most abundant ellagitannins extracted from oak wood(Quercus robur L).