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각종 Flavonoids의 라디칼 봉쇄능과 ACE 활성 억제능에 관한 연구

Studies on the Radical Scavenging Effects and the Inhibitory Effects on ACE Activity of Several Flavonoids

  • 강진훈 (고신대학교 식품영양학과)
  • 발행 : 2003.12.01

초록

천연에서 생산되는 식물성 천연항산화성 물질인 flavonoid의 지질 산화 억제능과 라디칼 봉쇄능 및 금속착체 형성능을 비롯하여 ACE 저해능을 조사하고 그 결과를 보고하였다. 즉, flavonoid와 linoleic acid를 반응시킨 결과 linoleic acid의 산화를 크게 억제하는 것으로 나타났으며 특히, 산화의 초기에 억제 효과가 큰 것으로 나타났다. 이들의 DPPH에 대한 수소 공여능을 조사한 실험에서 공시한 대부분의 flavonoid가 양질의 효과를 나타내었으나 naringin과 kaempferol은 봉쇄능이 약한 것으로 나타났으나 daidzein과 morin, quercetin 등은 아주 우수한 radical 봉쇄능을 가지는 것으로 나타났다. 한편, rutin의 금속 착체 형성능을 조사한 실험에서는 C $u^{2+}$$Mg^{2+}$에 대한 결합능이 있는 것을 확인할 수 있었다. 그리고 ACE 저해능을 조사한 실험에서는 모든 시료에서 ACE 활성을 저해하는 결과를 나타내었다. 특히, isoflavone인 daidzein과 genistein에서 저해능이 가장 큰 것으로 나타났다.

This study was carried out to identify the biophysical utility of bioflavonoids by the determination of their antioxidative activities, radical scavenging activity and inhibitory effect on the ACE activity. The results obtained were as follows; All flavonoids experimented greatly inhibited the linoleic acid oxidation from the early period of oxidation, and the radical scavenging ability was also greater in genistein and daidzein than other flavonoids, generally showing donating ability. Rutin has the metal-chelating ability with C $u^{2+}$ and $Mg^{2+}$, which means to have the inhibitory effect on the promotive oxidation of lipid by metal ion. All flavonoids experimented inhibited the angiotensin converting enzyme (ACE) activity, which was greater in genistein and daidzein than other flavonoids.s.

키워드

참고문헌

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