Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Biological Activity of the Fractions Extracted from Rhodiola dumulosa

홍경천 추출물의 생리활성

  • Park, Kyung-Uk (Division of Food Sciences, Sunchon National University) ;
  • Yoon, Jae-Ho (Division of plant Science and Production, Sunchon National University) ;
  • Kim, Jae-Yong (Dept. of Food Science and Technology, Kyungpook National University) ;
  • Jeong, Chang-Ho (Division of Food Sciences, Sunchon National University) ;
  • Park, Chae-Kyu (Division of Ginseng Research, KT&G Central Research Institute) ;
  • Song, Won-Seob (Division of plant Science and Production, Sunchon National University) ;
  • Seo, Kwon-Il (Division of Food Sciences, Sunchon National University)
  • Published : 2005.10.01
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Abstract

To develop functional food material using Rhodiola dumulosa(RD), the biological activities such as antioxidation, antiproliferation in the cancer cells and immuno-activity in macrophage cells were investigated with hexane, ethylacetate, n-butanol, methanol and water fractions of RD 80% methanol extract. Hydrogen-donating activities of hexane, ethyl acetate, n-butanol, methanol and water fraction were 28.30, 53.21, 35.48, 42.64 and 21.14%, respectively, at a concentration of 100 ${\mu}g/mL$, and the activity of ethyl acetate fraction was similar to as that of BHT. After treated for 48 hrs, the ethyl acetate fraction decreased the proliferation of the A549 and SW480 cells in a dose-dependent manner at concentration of 10, 50, and 100 ${\mu}g/mL$, the activities were higher than other fractions. Morphology of cells treated with the ethyl acetate fraction for 48 hr at 100 ${\mu}g/mL$ was distorted with shrank cell mass, and the cell number was lower than that of control cells the macrophage cells treated. The methanol fraction was significantly induced NO production compared with untreated control cells at above 10 ${\mu}g/mL$ concentration. These results indicate that RD would be used the functional food material.

홍경천(Rhodiola dumulosa)을 기능성 식품소재로 개발하기 위하여 홍경천(뿌리)을 80% 메탄올로 열수 추출하여 용매 분획한 후 이들에 대한 항산화, 암세포 성장 억제 및 대식세포의 면역활성 등과 같은 기능성을 조사하였다. 홍경천 메탄올 추출물의 헥산, 에틸 아세테이트, 부탄올, 메탄올 및 물 분획물의 수소공여능은 100 ${\mu}g/mL$의 농도에서 각각 28.30, 53.21, 35.48, 42.64 및 21.14% 로서 에틸아세테이트 분획물이 가장 높았으며, 이는 합성 항산화제인 BHT와 비슷한 항산화 효과를 나타내었다. A549 및 SW480 와 같은 암세포에 용매 분획물 1, 10 및 100 ${\mu}g/mL$의 농도로 48시간 처리한 결과 에틸아세테이트 분획물이 다른 분획물에 비하여 암세포주의 성장을 강하게 억제하였으며, 그 활성은 농도 의존적으로 나타났다. 또한 100 ${\mu}g/mL$의 농도로 48시간 동안 에틸아세테이트 분획물을 암세포에 처리시 처리구에서의 암세포는 뚜렷한 세포수의 감소와 함께 심한 형태학적 변화가 관찰되었다. 대식세포주(RAW 264.7)에 1, 10 및 50 ${\mu}g/mL$의 농도로 용매 분획물을 처리한 후 NO의 생성량을 측정한 결과 10 μg/mL 이상의 농도에서 메탄올 분획물에서 NO 생성을 강하게 유도하였다. 따라서 본 결과는 홍경천의 기능성 식품소재로의 활용 가능성을 시사한다.

Keywords

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