Journal of the Korean Wood Science and Technology
- Volume 32 Issue 3
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- Pages.66-70
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- 2004
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- 1017-0715(pISSN)
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- 2233-7180(eISSN)
Structure-antioxidant Activity Relationships of IsofIavonoids
- Park, Youngki (Div. Biotechnology, Korea Forest Research Institute) ;
- Choi, Don-Ha (Div. Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
- Lee, Hak-Ju (Div. Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
- Lee, Sung-Suk (Div. Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
- Lee, Wi Young (Div. Biotechnology, Korea Forest Research Institute) ;
- Ahn, Jin Kwon (Div. Biotechnology, Korea Forest Research Institute)
- Received : 2003.12.15
- Accepted : 2004.02.25
- Published : 2004.05.25
Abstract
The antioxidant activities of six isoflavonoids isolated from Sophora japonica wood and bark were examined by DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical scavenging method. This study was focused on the relationship between antioxidant activity of isoflavonoids and their chemical structures. From the results of this study, it could be concluded that the hydroxyl groups that linked at ring B and ring A in isoflavonoids have importance in the antioxidant activity. Additionally, the absence of the 2,3-double bond on the isoflavonoid enhances its antioxidant activity.