, Volume 113, Issue 3, pp 287-299

The Structure and Distribution of the Flavonoids in Plants

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-C3-C6 skeleton, have been found in plants, and are divided into several classes, i.e., anthocyanins, flavones, flavonols, flavanones, dihydroflavonols, chalcones, aurones, flavan and proanthocyanidins, isoflavonoids, biflavonoids, etc. In this review, the chemical structures of the reported flavonoid classes are introduced and their distribution in nature are described. Additionally, some recent chemotaxonomical examples using the flavonoids are also given.

Received 1 June 2000/ Accepted in revised form 1 July 2000