Most of a grape's tannins (known as condensed tannins) are in its skin, pulp, and stems, rather than its juice. The longer grape juice comes in contact with skin and other bits and pieces during ...

Development of rapid analytical method using chromatography and spectrometry to determine procyanidin concentration in both ...

Byrde, R. J., Fielding, A. H., and Williams, A. H., in Phenolics in Plants in Health and Disease, edit. by Pridham, J. B., 95 (Pergamon Press. Oxford, 1960).

The astringency of red wine, the treatment of animal skins with condensed tannins to produce leather and the durability of tea stains on the kitchen counter are a few reminders of how well ...