fig1
Figure 1. Example of common polyphenol structures. A basic polyphenol backbone consists of two aromatic rings (A and B) connected by a three-carbon bridge forming a heterocyclic ring (C). The figure includes examples of flavonoid and non-flavonoid monomers, as well as a polymeric procyanidin - a trimer composed of three flavan-3-ol units. The structures in the figure are the orginal work of the authors.
