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Table 2 Structure of phenolic compounds in plants

From: Phenolic compounds as natural feed additives in poultry and swine diets: a review

Class

Structure

Simple phenolics, benzoquinones

C6

Hydroxybenzoic acids

C6-C1

Acetophenones, phenylacetic acids

C6-C2

Hydroxycinnamic acids, phenylpropanoids

C6-C3

Xanthones

C6-C1-C6

Stilbenes, anthraquinones

C6-C2-C6

Flavonoids, isoflavonoids

C6-C3-C6

Lignans, neolignans

(C6-C3)2

Lignins

(C6-C3)n

Condensed tannins (proanthocyanidins or flavolans)

(C6-C3-C6)n

  1. Source: Ref. [12]