Acknowledgement
This research was financially supported by the Agricultural R&D Promotion Center.
Journal of the Korean Wood Science and Technology
- Volume 32 Issue 6
- /
- Pages.43-49
- /
- 2004
- /
- 1017-0715(pISSN)
- /
- 2233-7180(eISSN)
Antioxidative Constituents from the Woods of Liriodendron tulipifera
- Lee, Yeon-Suk (School of Forest Resources, Chungbuk National University) ;
- Lee, Hak-Ju (Div. Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
- Park, YoungKi (Div. Biotechnology, Korea Forest Research Institute) ;
- Park, Jae-In (School of Forest Resources, Chungbuk National University) ;
- Choi, Tae-Ho (School of Forest Resources, Chungbuk National University)
- Received : 2004.02.19
- Accepted : 2004.08.06
- Published : 2004.11.25
Abstract
Three flavonoids, quercetin, taxifolin, and kaempferol were isolated from the woods of Liriodendron tulipifera. Their structures were determined by spectral analysis. Based on 1, l-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity method, the antioxidative activities of three isolated compounds and their acetates were measured in order to search for natural antioxidants. The IC50 of quercetin (1), taxifolin (2), and kaempferol (3) were 3.6, 3.9, and 4.1 ㎍/㎖, respectively.
Keywords
- Liriodendron tulipifera;
- Antioxidant activity;
- Radical scavenging effect;
- kaempferol;
- quercetin;
- taxifolin