Anthocyanin

Intermediate Chemistry & Science

an-tho-SY-ah-nin

Definition

The pigment molecules responsible for red wine's color.

In Depth

Anthocyanins are water-soluble pigments in grape skins. Young reds are bright purple-red from free anthocyanins. With aging, anthocyanins bind with tannins, shifting color toward garnet and eventually brick-brown. Thick-skinned grapes (Cabernet Sauvignon, Syrah) have more anthocyanin than thin-skinned varieties (Pinot Noir, Nebbiolo), explaining their deeper color.

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Details

Category: Chemistry & Science
Difficulty: Intermediate
Pronunciation: an-tho-SY-ah-nin

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