Studies on the Comparative Analysis of Immunofunction of Agaricus blazei Murill Cultivated with Fermented Media Containing Pueraria thunbergiana

칡혼합 발효배지로 생산된 신령버섯의 면역기능성 비교 분석에 관한 연구

  • 김주남 (영남이공대학 식음료조리계열) ;
  • 서정식 (영남이공대학 식음료조리계열) ;
  • 박동철 (김천대학 식품가공과)
  • Published : 2002.03.01

Abstract

This research was performed to investigate the immnomodulative effects of ploysaccharides extracted from the fruiting body of Agarcus blazei cultivated with the media which are fermented with sugar cane bagasse containing Pueraria thunbergiana in open-air storage. In MTT test, methanol extracts from the fruiting body of A. blazei cultivated with P. thunbergiana media showed in colon carcinoma line(HT29) by 1.5∼3.5 fold and human heptoma cell line (HepG2) by 1.3 ∼2.4 fold antitumor activites compared to two types media (rice straw plus sugar cane bagasse, rice straw only) often used in the fauns. To clarify the antimutagenic principles, three extracts, Ab-l, Ab-2 and Ab-3, were separated by the solvent fractionations such as hot water, cold & hot sodium hydroxide respectively, and their antimutagenic effects was determined against N-methyl-N'-nitro-N-cnitrso-guanidine(MNNG) using Salmonella typhymurium. There was no significant differencies of inhibition levels among the used media, but Ab-3 tractions still showed a high antimutagenicity in the Ames test regardless of cultivating areas or media. To prove the cell immunofunction, nitric oxide (NO) produced from Raw 264.7 matrophage cultured with three fractions (Ab-l, Ab-2, Ab-3) was measured, and showed generally increase about 45 ∼58 percent compared to another two media (rice straw plus sugar cane bagasse, rice straw only), in the fraction of hot alklai extracts of the fruiting body cultivated with P. thunbergiana, which means that the media selection could be very important factors for improving medicinal effects in agaricus blazei fruiting body.

본 연구에서는 건강기능성 버섯으로 알려진 A. blazei 에 대하여 재배시 농가에서 사용하는 배지의 종류에 따라 생산된 자실체의 면역 기능성 차이를 규명 할 목적으로 in viro 상태에서 추출다당체의 세포에 대한 영향을 살펴보았다. 기능성 약용 버섯인 A. balzei 에 대하여 재배시 농가에서 사용하는 배지에 따른 in viro 상태에서 세포에 대한 다당체의 영향을 검토하였다. 추출용매에 따른 항종양 물질의 저해효과는 약 25∼30% 수율범위의 methanol 추출물이 비교적 높은 효과를 나타내었다. 이 추출물을 이용하여 human colon carcinoma cell line인 HT29와 human heptoma cell line HepG2에 대한 항종양실험 결과 결장암 세포에 대한 효과는 고농도로 처리시 사용된 생산배지에 따라 1.5∼3.5배 까지의 차이를 나타내었다. 간암세포에 대해서도 고농도로 처리시 사용된 생산배지에 따라 1.3∼2.4배 까지의 저해효과를 볼 수 있었으며 이는 배지상의 조성과 발효에 따른 차이로 추측된다. 국내산 신령버섯간 지역별로 다르게 사용되는 생산배지 사이에 나타나는 항종양효과에서 일반적으로 많이 사용되는 볏짚과 사탕수수 혼합배지보다는 볏짚대신에 칡을 사탕수수에 일부 혼합하여 발효시킨 배지에서 생산된 버섯에서 상당히 높은 종양 저해효과를 나타내었다. 즉 결장암에 대한 처리시 저 농도에서는 약 1.5배, 고농도에서 약 1.6배의 저해효과를 나타내었으며, 간암세포에서는 저 농도에서 약 2.1배, 고농도에서 약 2.8배의 더욱 높은 저해효과를 나타내었다. 건조 분말시료에서 지용성 성분을 제거한 후 열수 및 냉·온 알칼리성 조건으로 다당체를 분리하여 Ab-l, Ab-2, Ab-3 분획을 얻었으며, 이들 시료로 Salmonella typhymurium TA100을 이용한 항돌연변이 실험을 수행한 결과 재배지역과 사용배지에 따른 큰 차이는 나타나지 않았지만 대체로 높은 항돌연변이 효과를 나타내었다. 면역세포의 활성정도를 측정하기 위하여 macrophage Raw cell에 상기의 fraction을 적용해본 결과 칡 사용 생산버섯의 알칼리성 추출 Ab-3 fraction이 사용한 다른 배지에 비하여 약 45∼58% NO 생성증가를 나타내었으며, 기타 열수추출 fraction에서는 유의적인 큰 증가는 없었으나 알칼리 추출조건에서는 대체로 증가하는 경향이 뚜렷하게 나타났다.

Keywords

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