PT  - JOURNAL ARTICLE
AU  - Saucier, C.
AU  - Little, D.
AU  - Glories, Y.
TI  - First Evidence of Acetaldehyde-Flavanol Condensation Products in Red Wine
AID  - 10.5344/ajev.1997.48.3.370
DP  - 1997 Jan 01
TA  - American Journal of Enology and Viticulture
PG  - 370--373
VI  - 48
IP  - 3
4099  - http://www.ajevonline.org/content/48/3/370.short
4100  - http://www.ajevonline.org/content/48/3/370.full
SO  - Am J Enol Vitic.1997 Jan 01; 48
AB  - A dimeric polyphenolic fraction was purified from a two months old Cabernet Sauvignon wine. This fraction was studied by LC-ES-MS. Several products with a 606 mass corresponding to a dimer of 2 flavanol monomer units linked by an ethyl bridge were detected. Identification of catechin-acetaldehyde dimers was achieved by injection of synthetic dimers. In addition to retention time, mass spectra were obtained on each peak. By increasing the cone voltage in the electrospray source, specific fragments could be generated which further confirm the structures of the molecules.