flavonoids

Proanthocyanidins and anthocyanins both belong to plant flavonoid polyphenols, but they are not the same class of compounds. Anthocyanins are mainly involved in the formation of red, purple, and blue colors in plant tissues, whereas proanthocyanidins are more closely associated with condensed ...

Flavonoid natural products are not merely general free-radical-scavenging constituents, but important regulatory molecules capable of acting simultaneously on reactive oxygen species generation, redox buffering, inflammatory sensing, signal transduction, and inflammatory execution.