1,1-diphenyl-2-picrylhydrazyl radical scavenging activity of bee products and their constituents determined by ESR.

@article{Izuta200911diphenyl2picrylhydrazylRS,
  title={1,1-diphenyl-2-picrylhydrazyl radical scavenging activity of bee products and their constituents determined by ESR.},
  author={H. Izuta and Y. Narahara and M. Shimazawa and S. Mishima and S. Kondo and H. Hara},
  journal={Biological & pharmaceutical bulletin},
  year={2009},
  volume={32 12},
  pages={
          1947-51
        }
}
The aim of this work was to investigate the antioxidant property of honeybee products and their constituents using an ESR method. Antioxidative activity was evaluated as the scavenging activity of 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical. The DPPH radical scavenging activities, in descending order, were: ethanol extract of Chinese red propolis>ethanol extract of Brazilian green propolis>water extract of Brazilian green propolis>ethanol extract of bee pollen. Many natural compounds are… Expand
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