Dihydrochalcones

Dihydrochalcones (DHCs), a class of minor flavonoids, have two aromatic rings linked by a three-carbon bridge that is saturated, as distinct from chalcones. They occur with a limited but heterogeneous distribution in the plant kingdom. The apple tree, Malus x domestica, is one of the first plants where phloridzin, among other DHCs, was discovered. This chapter focuses on the distribution of DHCs in the plant kingdom, their chemistry, and their biological activities.