FIRST EVIDENCE OF ACETALDEHYDE-FLAVANOL CONDENSATION PRODUCTS IN RED WINE

Authors
SAUCIER C LITTLE D GLORIES Y
Citation
C. Saucier et al., FIRST EVIDENCE OF ACETALDEHYDE-FLAVANOL CONDENSATION PRODUCTS IN RED WINE, American journal of enology and viticulture, 48(3), 1997, pp. 370-373
Citations number
21
Categorie Soggetti
Food Science & Tenology",Agriculture,"Biothechnology & Applied Migrobiology
Journal title
American journal of enology and viticulture → ACNP
ISSN journal
00029254
Volume
48
Issue
3
Year of publication
1997
Pages
370 - 373
Database
ISI
SICI code
0002-9254(1997)48:3<370:FEOACP>2.0.ZU;2-4
Abstract
A dimeric polyphenolic fraction was purified from a two months old Cab ernet Sauvignon wine. This fraction was studied by LC-ES-MS. Several p roducts with a 606 mass corresponding to a dime. of 2 flavanol monomer units linked by an ethyl bridge were detected. Identification of cate chin-acetaldehyde dimers was achieved by injection of synthetic dimers . In addition to retention time, mass spectra were obtained an each pe ak. By increasing the cone voltage in the electrospray source, specifi c fragments could be generated which further confirm the structures of the molecules.