Name for a group of chemical substances found in leaves, wood, bark, fruit and roots of many plants. Tanned animal skin becomes leather due to the tanning substances, from which the term "tanning" is derived. Tannins belong to the group of polyphenols or phenolic compounds such as catechin as well as ellagtannins (ellagic acid) and gallotannins (gallic acid). In wine, these...
I have great respect for the scope and quality of the wein.plus encyclopaedia. It is a unique place to go for crisp, sound information on terms from the world of wine.
Dr. Edgar Müller
Dozent, Önologe und Weinbauberater, Bad Kreuznach