A general term for antioxidants that are the source of pigments and bitterness in plants and are produced primarily to protect the plant from ultraviolet rays. They are found in most plants, and there are said to be more than 5,000 types.
It is said to have benefits for health and beauty, such as its blood sugar lowering effects and anti-aging properties, and is known to be an ingredient found in large amounts in wine (especially red wine).
Representative polyphenols contained in grapes, the raw material for wine, include:
- Tannins
- Catechin
- Anthocyanin
And more.


