Antioxidant properties of a North American ginseng extract

@article{Kitts2000AntioxidantPO,
  title={Antioxidant properties of a North American ginseng extract},
  author={David D. Kitts and Arosha N. Wijewickreme and Chun Xia Hu},
  journal={Molecular and Cellular Biochemistry},
  year={2000},
  volume={203},
  pages={1-10}
}
A North American ginseng extract (NAGE) containing known principle ginsenosides for Panax quinquefolius was assayed for metal chelation, affinity to scavenge DPPH-stable free radical, and peroxyl (LOO·) and hydroxyl (·OH) free radicals for the purpose of characterizing mechanisms of antioxidant activity. Dissociation constants (Kd) for NAGE to bind transition metals were in the order of Fe2+ > Cu2+ > Fe3+ and corresponded to the affinity to inhibit metal induced lipid peroxidation. In a metal… CONTINUE READING

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