The Korean Journal of Food And Nutrition (한국식품영양학회지)
- Volume 10 Issue 3
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- Pages.375-381
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- 1997
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- 1225-4339(pISSN)
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- 2287-4992(eISSN)
An Anticoagulant Polysaccharide Isolated from Ganoderma lucidum
한국산 영지버섯에서 분리된 항응고성 다당
Abstract
The anticoagulant polysaccharide was screened from the ediable mushrooms. Among them, alkali extract of Ganoderma lucidum showed the highest activity in aPTT. A crude polysaccharide fraction (GL-I) was prepared from the 1N NaOH solution extract of Ganoderma lucidum followed by methanol-reflux, precipitation with ethanol, dialysis and lyophilization. GL-I inhibited the intrinsic pathway in blood coagulation pathway and exhibited concentration dependent anticoagulation effects. The anticoagulant activity of GL-I was decreased greatly by periodate oxidation, but was not changed by pronase digestion. These suggest that carbohydrate moiety may be related to the anticoagulant activity. GL-I consisted of glucose, galactose, fucose, xylose, mannose, arabinose in a molar ratio of 19.3:3.0:2.3:1.3:1.0:0.3. GL-I was partially purified on the DEAE-Toyopearl 650C(GL-IalongrightarrowGL-If) and on the Sephadex G-100(GL-Ic-ilongrightarrowGL-Ic-II).
식용버섯을 대상으로 항응고 활성을 검색한 결과 영지버섯 알칼리 추출물이 가장 높은 활성을 보였다. 영지버섯으로부터 추출한 조다당 획분인 GL-I은 1N NaOH로 8시간 추출물(GL-0)을 methanol 환류, 에탄올 침전을 거쳐 투석, 동결건조하여 조제하였다. 히-I 획분은 periodate 산화에 의해서는 활성이 크게 변하지만 pronase 소화시 활성의 변화가 거의 없는 것으로 보아 항응고 활성의 본체는 주로 당과 관계되는 것으로 추정된다. 히-I의 구성당은 glucose:galactose:xylose:mannose:arabinose가 19.3:3.0:2.3:1.3:1.0:0.3의 molar ratio로 구성되어 있다. GL-I 획분을 DEAE-Toyopearl 650C(GL-Ia