italianoenglishfrançaisdeutschespañolportuguês
Language
Search
  • » Analysis
  • » Rapid Isolation of Red Wine Polymeric Polyphenols by Solid-Phase Extraction
  • Simon Nordestgaard, Australian Wine Research Institute
    VIDEO SEMINAR ENOFORUM 2018: Simon Nordestgaard conference at Enoforum 2018 summarise the latest research on wine storage and transport from around the world and provide practical guidance for prod...
    Price:15 €(Tax included)
    Published on: 30/01/2019

Rapid Isolation of Red Wine Polymeric Polyphenols by Solid-Phase Extraction

David W. Jeffery, Meagan D. Mercurio, Markus J. Herderich, Yoji Hayasaka, and Paul A. Smith, J. Agric. Food Chem., 56 (8), 2571–2580, 2008.

A rapid technique for the isolation of polymeric polyphenols from red wine has been developed and validated. A copolymer reversed-phase SPE cartridge was utilized in conjunction with predominantly organic eluents to provide three phenolic fractions from red wine without the need for sample pretreatment. The first fraction contained the bulk of the monomeric and oligomeric phenolic material, while the second and third fractions contained the polymeric polyphenolic compounds, as determined by HPLC analysis. The two polymeric polyphenolic fractions differed in their solubility and extent of pigmentation, and the differences appeared to be related to wine age. This method contrasted with other available fractionation techniques because the interfering, nonpolymeric material can be removed in a single wash fraction, while the polymeric material is separated into two distinct fractions based on their diverse physicochemical properties. It is anticipated that the rapid access to discrete polymeric fractions afforded by this method will be of benefit in furthering the understanding of red wine polymeric polyphenols. We recommend to read the article from the original source at the provided link.
Published on 24/09/2008
Related sheets
© All Right Reserved
ISSN 1826-1590 VAT: IT01286830334
powered by Infonet Srl Piacenza
Privacy Policy
This website and its related third-party services make use of cookies necessary for the purposes described in the cookie policy. If you want to learn more about cookies or how to disable them (either totally or partially), please see the cookie policy. By closing this banner, scrolling through this page, clicking on a link or continuing navigation in any other way, you consent to the use of cookies.
More informationOK

- A +
ExecTime : 1,828125