(EconomicTimes) - It wouldn't take long for wine aficionados to distinguish a dry red wine from a fruitier red wine. Ever wonder why some wines taste dry and some don't? A recent study has found that tannin structure, concentration, and interactions with saliva and other wine components influence the perception of dryness. 

Tannin is a naturally occurring polyphenol found in plants, seeds, bark, wood, leaves, and fruit skins. Scientists had long linked the "dryness" sensation in wine to tannins, but how t ..