Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Studies on Biological Activity of Wood Extractives (XVII) - Components and Antioxidant activity of Alnus firma -

  • Choi, In-Ho (School of Forest Resources, Chungbuk National University) ;
  • Choi, Tae-Ho (School of Forest Resources, Chungbuk National University) ;
  • Park, Youngki (Div. Biotechnology, Korea Forest Research Institute) ;
  • Lee, Oh-Kyu (Div. Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
  • Kwon, Yeong-Han (National Arboretum) ;
  • Kang, Ha-Young (Div. Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
  • Park, Il-Kwon (Div. Forest Insect Pests and Disease, Korea Forest Research Institute) ;
  • Choi, Don-Ha (Div. Wood Chemistry & Microbiology, Korea Forest Research Institute) ;
  • Shin, Sang-Chul (Div. Forest Insect Pests and Disease, Korea Forest Research Institute) ;
  • Lee, Hak-Ju (Div. Wood Chemistry & Microbiology, Korea Forest Research Institute)
  • Received : 2005.07.18
  • Accepted : 2005.09.12
  • Published : 2006.03.25
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Abstract

This study is to isolate bio-active compounds from Alnus firma and evaluate their antioxidant activity. Dried wood powder of A. firma was extracted by organic solvents and fractionated in the sequential extraction steps. The isolated compounds were characterized by EI-MS, $^{13}C-$ and $^1H-NMR$ including COSY, DEFT, HMQC, and HMBC. Antioxidant activities of the isolated compounds were evaluated by DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical scavenging effect. From the wood of A. firma, three kinds of diarylheptanoids, alnusodiol (1), alnusonol (2) and alnusone (3), and gallic acid (4) were isolated. Among these four compounds, compound 1, 2, and 3 are isolated from A. firma for the first time. The antioxidant activity of gallic acid was 93.5% at the concentration of 100 ppm. This compound showed stronger antioxidant activity than those of other isolated compounds and the reference BHT (butylated hydroxytoluene).

Keywords

References

  1. Blois, M. S. 1958. Antioxidant determinations by the use of a stable free radicals. Nature. 181: 1199 -2000
  2. Chevalley, I. A. Marston and K. Hostettmann. 1999. A new gallic acid fructose ester from Saxifraga stellaris. Phytochemistry. 50: 151-154 https://doi.org/10.1016/S0031-9422(98)00496-8
  3. Cooper-Driver, G. A. and M. Bhattacharya. 1998. Role of Phenolics in plant evolution. Phytochemistry. 49(5): 1165 -1174 https://doi.org/10.1016/S0031-9422(98)00054-5
  4. Jeong, C. S. 2003. Anti-inflammatory and analgesic activity of Alnus japonica cortex ethanol extract. Kor. J. Pharmacogn. 34: 233 - 236
  5. Kim, H. J., D. I. Jang, and S. W. Choi. 1997. Inhibitors of Tyrosinase and Melanogenesis from Galla rhois. J. Food Sci. Nutr 2: 285 - 290
  6. Li, G., C. S. Seo, S. H. Lee, Y. Jahng, H. W. Chang, C. S. Lee, M. H. Woo, and J. K. Son. 2004. Diarylheptanoids from the roots of Juglans mandshurica. Bull. Korean Chem. Soc. 25: 397 - 399 https://doi.org/10.5012/bkcs.2004.25.3.397
  7. Li, G., M. L. Xu, H. G. Choi, S. H. Lee, Y. D. Jang, C. S. Lee, D. C. Moon, M. H. Woo, and J. K. Son. 2003. Four new diarylheptanoids from the roots of Juglans mandshurica. Chem. Pharm. Bull. 51: 262-264 https://doi.org/10.1248/cpb.51.262
  8. Nomura, M., T. Tokashi, and T. Kubota. 1981. Biarylheptanoids and other constituents from wood of Alnus japonica. Phytochemistry. 20: 1097 -1104 https://doi.org/10.1016/0031-9422(81)83035-X
  9. Park, Y. K., D. H. Choi, H. J. Lee, S. S. Lee, W. Y Lee, and J. K. Ahn. 2004. Structureantioxidant activity relationships of isoflavonoids. Journal of the Korean Wood Science and Technology. 32: 66 - 70
  10. Park, Y. K., W. Y. Lee, J. K. Ahn, H. J. Lee, H. S. Chin, and Y. J. Kwon. 2003. Antioxidant compounds from Distylium Racemosum leaves. Journal of the Korean Wood Science and Technology. 31: 67-72