Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Investigation on Antioxidant Activity in Plant resources

식물자원의 항산화활성 탐색

  • 이승은 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 성정숙 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 장인복 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김금숙 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 안태진 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 한희선 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김지은 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김영옥 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 박충범 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 차선우 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 안영섭 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 박호기 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 방진기 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 성낙술 (농촌진흥청 국립식량과학원 인삼특작부)
  • Published : 2008.10.30
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Abstract

This study was conducted for screening on antioxidant activity of 429 plants and selecting new potential antioxidant candidates. In vitro test models such as scavenging activity on DPPH radical and inhibitory activity on linoleic acid oxidation were used in the preliminary study. Flower of Sanguisorba officinalis, flower of Sedum kamtschaticum, flower of Rumex obtusifolius, and root of Sedum kamtschaticum showed very effective antioxidant activity on DPPH radical and linoleic acid oxidation. Those plants showed 8.1, 9.4, 9.9, $11{\mu}g/ml$ in DPPH radical scavenging activity as $SC_{50}$ and did 80.4, 80.1, 84.5, 88.0% in inhibition activity on linoleic acid oxidation, respectively. Root of Sedum middendorfianum M. showed positive effects in superoxide radical scavenging activity ($38.4{\mu}g/ml$) and inhibitory effect on $CuSO_4$-induced LDL oxidation (53.8% at final concentration of $1{\mu}g/ml$). Gleditsia japonica Mig. showed high antioxidant activity on LDL oxidation as 71.6% at final concentration of $1{\mu}g/ml$ and total phenol content of 958.5 mg% as tannic acid equivalent. In conclusion, we think that these plants having potent antioxidant activity might be studied further and could be used as new resources for many purposes including healthy food, functional cosmetics and drug development etc.

본 연구는 429점의 식물자원의 항산화활성을 검색하고 새로운 잠재적인 항산화후보물질을 발굴하기 위해 수행하였다. 본 연구에서는 DPPH 라디칼에 대한 소거능과 리놀렌산 산화에 대한 저해활성에 대한 실험이 이루어졌다. 실험결과 Sanguisorba officinalis (flower), Sedum kamtschaticum (flower, root) 그리고 Rumex obtusifolius (flower)가 특히 우수한 활성을 나타내었는데, 이들 식물은 각각 8.12, 9.4, 9.9, $11{\mu}g/ml$의 DPPH 라디칼에 대한 소거활성 ($SC_{50}$)과 80.4, 80.1, 84.5, 88.0%의 리놀렌산 산화에 대한 저해활성을 나타내었다. 또한, 1차 선발된 식물 10점에 대한 추가 실험에서, Sedum middendorffianum (root)이 superoxide 라디칼에 대한 소거능 ($SC_{50}$, $39.4{\mu}g/ml$)과 $CuSO_4$로 유도된 저밀도지단백질(LDL)의 산화에 대해 우수한 활성 (53.8%)을 나타내었으며, Gleditsia japonica (thorn)는 LDL 산화에 대한 저해활성이 우수 (71.4%)하고 총페놀 함량 (958.5%)이 높은 것으로 확인되었다.

Keywords

References

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