A Review of Tannins in Berries

Tannins are a group of polyphenolic compounds synthesized and accumulated by higher plants as secondary metabolites. They divided into hydrolysable tannins proanthocyanidins found in many plant tissues which they occur diverse structures amounts. This review provides brief background on tannin distribution plants, summarizes the current literature strawberries, raspberries, blueberries, currently most commonly cultivated consumed berries, chokeberries, have become popular last decades. The effects processing storage composition levels processed products also provided.