Towards high resolution 1H NMR spectra of tannin colloidal aggregates

被引：7

作者：

Mirabel, M

Glories, Y

Pianet, I

Dufourc, EJ

机构：

[1] Cesamo, UMR 5802, F-33405 Talence, France

[2] Yvon Mau, F-33190 Gironde Sur Dropt, France

[3] Univ Victor Segalen, Fac OEnol, F-33405 Talence, France

[4] Ecole Polytech, IECB, F-33405 Talence, France

来源：

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE | 1999年 / 96卷 / 9-10期

关键词：

D O I：

10.1051/jcp:1999241

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The time dependent colloidal formation of tannins in hydro-alcoholic medium has been studied by H-1-NMR, Line broadening observed with time can be cancelled by making use of magic angle sample spinning (MASS) thus yielding sharp lines that allow structural studies. We used as an example catechin, a constitutive monomer of Bordeaux young red wine tannins. Chemical shift variations of polyphenol protons allow monitoring the time course of aggregation.

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页码：1629 / 1634

页数：6

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