The Antioxidant Activity Evaluations of the Triterpene Saponins from Lonicera macranthoides in vitro

Objective To investigate the antioxidant activity of different triterpene saponins from Lonicera macranthoides in vitro.Methods The antioxidant activity was evaluated by DPPH and Fenton under the reference of vitamin C.Results Three saponins with chlorogenic acid could scavenge both DPPH radical and OH radical,which was even better than VC and chlorogenic acid.Conclusion Three chlorogenic acid ester saponins from Lonicera macranthoides had a significant potential to use as natural antioxidant resources.