The Korean Journal of Food And Nutrition (한국식품영양학회지)

The Korean Society of Food and Nutrition (한국식품영양학회)
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Studies on the Antioxidative Ability of Methanol and Water Extracts from Orostachys japonicus A. Berger According to Harvest Times

채취 시기에 따른 와송 추출물의 항상화 활성 연구

  • Choi, Sun-Young (Dept. of Home Economics Education, Education Research Institute, Gyeonsang National University) ;
  • Chung, Mi-Ja (Dept. of Biotechnology and Engineering, Kangwon National University) ;
  • Sung, Nak-Ju (Dept. of Food Science and Nutrition, Institute of Agriculture and Life Sciences, Gyeongsang National University)
  • 최선영 (경상대학교 가정교육과 교육연구원) ;
  • 정미자 (강원대학교 생명공학과) ;
  • 성낙주 (경상대학교 식품영양학과 농업생명과학연구소)
  • Published : 2008.06.30
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Abstract

This study examined the antioxidant activity of methanol and water extracts from Orostachys japonicus A. Berger according to harvest times, by measuring electron donating ability(EDA), reducing power, superoxide dismutase(SOD)-like activity, thiobarbituric acid reactive substances(TBARS) and antioxidant activity within a linoleic acid emulsion. EDA increased proportionally with the extract concentration and the methanol extract had slightly stronger effects than the water extract. And reducing power and SOD-like activity were highest in the methanol extract. Overall, based on the data, the methanol extract of O. japonicus A. Berger harvested during $August{\sim}October$ presented the highest level of antioxidative activity and may be a good candidate as a natural antioxidant source.

Keywords

References

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