Antioxidant activities of polyphenols from sage (Salvia officinalis)

The antioxidant activities of the sage polyphenols, consisting of flavone glycosides and a range of rosmarinic acid derivatives, were evaluated for their capacity to scavenge DPPH and superoxide anion radicals and also to reduce Mo(VI) to Mo(V). The rosmarinic acid derivatives all showed potent antioxidant activity in three test systems and their capacity to reduce Mo(VI) to Mo(V) and their superoxide radical scavenging activities, with values...