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Polyphenols

See under Phenols.

Term for mostly aromatic and fragrant compounds similar to alcohols. They belong to the group of organic acids with low acidity. Besides simple phenols, there are also many phenolic compounds which are also contained in oak wood, such as lignin. They are also found as a component of the skins, seeds and stems of grapes, although the content in red wine grapes is significantly higher than in white wine grapes. However, the finest, most aromatic and desirable phenolic compounds are found in the skins of berries, while those from grape seeds are rather undesirable. The phenols are...

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