약용식품 추출에 대한 항산화성과 알코올 탈수소효소 저해성 연구
Activities of Antioxidation and Alcohol Dehydrogenase Inhibition of Methanol Extracts from Some Medicinal Herbs
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초록
32종의 생약재를 메탄올로 추출한 후 진공 건조한 후 각 추출물의 생리활성 물질 및 알코올 대사와 관련된 효소활성을 측정하였다. DPPH법으로 free radical 소거능을 측정한 결과 정향, 녹차, 목단, 적양은 90% 이상의 소거활성을 보이고, 부위별로 살펴보면 줄기껍질 > 잎 > 열매 > 뿌리 순으로 활성이 나타났다. 아질산염 소거능은 천초, 적양, 녹차, 지구자목, 팔각향 등이 우수한 소거활성을 보였고, 이또한 부위별로는 줄기껍질이나 잎에서의 활성이 더 우수한 것으로 나타나 여러 생약재 중 줄기껍질이나 잎에 존재하는 페놀성 화합물이나 flavonoids류가 이와 같은 기능성에 영향을 줄것으로 간주된다. ADH 활성 측정은 일반적으로 숙취현상에 효과가 있다고 알려져있는 생약재 13종을 사용하여 알코올 탈수소효소 저해를 측정한 결과 13종의 생약재 모두 90% 이상의 강한 저해효과를 보였다. 그러므로 free radical 소거능이나 아질산염 소거능이 우수한 몇몇 생약재, 즉 녹차, 적양 등은 알코올의 대사와 관련하여 알코올의 대사과정 중 ADH의 활성을 저해하므로써 간 보호 효과와 숙취 현상 억제에 효과적이라 사료된다.
Abstract
The activities of antioxidation and alcohol dehydrogenase in hibitionin methanol extracts of thirty two medical herbs were tested using the method of DPPH activity, nitrite scavenging effect and alcohol dehydrogenase assay in vitro. In DPPH method, Eugenia caryophyllata, Thea sinensis, Paeonia suffruticosa, Alnus japonica showed over 90% of free radical scavenging activities. The nitrite scavenging ability appeared Zanthoxylum bungeanum, Alnus japonica, Thea sinensis, Hovenia dulcis(cortex) and Illicium verum showed the high value. In connection with in vivo alcohol metabolism, thirteen medicinal herbs were screened for inhibition. As a reasult, we found significant inhibition of ADH by methanolic extracts of Glycyrrhiza uralensis, Pueraria thunbergiana(radix), Alnus japonica. These results indicate that the antioxidative effect was strongly related with alcohol dehydrogenase inhibitor; Thea sinensis and Alnus japonica.
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