Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids.

Dec 23, 2025 · Tannin, any of a group of phenolic compounds in woody flowering plants that are important deterrents to herbivores and that have a number of industrial applications. Tannins are …

Tannins, a diverse class of polyphenolic compounds, are widely present in a variety of plant-based foods and beverages, where they contribute significantly to flavor, astringency, and numerous health benefits.

Have you ever bitten into an unripened apple and experienced an astringent (dry, puckery) feeling in your mouth? You have experienced tannins. Tannins are complex chemical substances derived from …

Tannins are naturally occurring phenolic compounds found in many kinds of plants, including a grape’s skins, stems, and seeds. Tannins help provide texture, balance, and structure to wine. Both...

Aug 27, 2024 · Tannins are a type of bitter and astringent chemical compound that belongs to a larger group called polyphenols. They occur abundantly in nature, namely in the bark of many trees and in …

Tannin is a polyphenol compound present in vascular plants with molecular weight ranging from 500 to 3000 kDa. Tannins are characterized, by their ability to form strong complex with different minerals …

The meaning of TANNIN is any of various soluble astringent complex phenolic substances of plant origin used especially in tanning leather and dyeing textiles, manufacturing ink, clarifying wine and beer, …

A tannin is a type of polyphenol. Also called tannic acid. A type of chemical found in plants and in certain foods, such as fruits, vegetables, nuts, wine, and tea. Tannins have antioxidant properties and may …

According to a biochemical definition, tannins are compounds that have a tendency to interact with aqueous solutions of proteins and other biological macromolecules to form insoluble precipitates.