Topic summary
Flavanoid
Extracted from the Wikipedia article Flavonoid.
As ketone-containing compounds, the three flavonoid classes are grouped as anthoxanthins (flavones and flavonols). This class was the first to be termed bioflavonoids. The terms flavonoid and bioflavonoid have also been more loosely used to describe non-ketone polyhydroxy polyphenol compounds, which are more specifically termed flavanoids.