Advances in Traditional Medicine

Kyung Hee Oriental Medicine Research Center (경희대학교 융합한의과학연구소)
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Free radical scavenging activity and kinetic behavior of the Galgeuntang water extract

  • Shin, Jeong-Mi (Department of Herbal Resources, Professional Graduate School of Oriental Medicine, Wonkwang University) ;
  • Kim, Young-Ok (Department of Life Science, Huree University) ;
  • Baek, Seung-Hwa (Department of Herbal Resources, Professional Graduate School of Oriental Medicine, Wonkwang University)
  • Published : 2008.03.31
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Abstract

Galgeuntang water extract exhibited a strong free radical scavenging activity and reducing power determination. However, a gradual increase in the free radical scavenging activity and reducing power determination was obtained with increasing concentrations. The highest radical scavenging activity was shown by the water extract from Galgeuntang (116.93 ${\mu}g$/mL) and the water extract from Cinnamonum cassia Presl. (95.01 ${\mu}g$/mL). These results of phenolic and flavonoid contents of the extracts indicated that the strong radical scavenging activity of the Cinnamonum cassia Presl. extract might be in part due to the phenolic compounds. The correlation coefficient between TPC and DPPH ($r^2$ = 0.9312), TFC and DPPH ($r^2$ = 0.9677), showed positive correlation among total phenolic/flavonoid contents and antioxidant activity. These results suggest that Galgeuntang has a potential antioxidant activity.

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