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Antioxidant Activity and Protective Effects of Cirsium japonicum against Damaged Mouse Liver Cell (BNL CL.2)

엉겅퀴의 항산화 활성 및 손상된 흰쥐 간세포(BNL CL.2)에 대한 간 보호 효과

  • Kim, Seonjeong (Division of Food Science, Gyeongnam National University of Science and Technology) ;
  • Kang, Seungmi (Division of Food Science, Gyeongnam National University of Science and Technology) ;
  • Ko, Keonhee (Gyeongnam Oriental Medicinal Herb Institute) ;
  • Nam, Sanghae (Division of Food Science, Gyeongnam National University of Science and Technology)
  • 김선정 (경남과학기술대학교 생명과학대학 식품과학부) ;
  • 강승미 (경남과학기술대학교 생명과학대학 식품과학부) ;
  • 고건희 (경남한방약초연구소) ;
  • 남상해 (경남과학기술대학교 생명과학대학 식품과학부)
  • Received : 2017.01.26
  • Accepted : 2017.04.03
  • Published : 2017.04.30

Abstract

We analyzed the content of total phenolic and silymarin compounds of Cirsium japonicum (CJ), and its antioxidant activities and Liver protective effects were compared with those of Silybum marianum (SM). The total phenolic content in the aerial part ($97.22{\pm}5.51mg/g$) of CJ is higher than that in the underground part ($85.32{\pm}3.06mg/g$). The total silymarin content of CJ was 55.56% of SM, with the underground part ($0.47{\pm}0.03mg/g$) having higher content than the aerial part ($0.18{\pm}0.02mg/g$). The antioxidant activity of CJ was generally slightly lower than that of milk thistle, and the underground part of CJ generally had higher activity compared to the aerial part. When CJ extracts were processed at 1 mg/ml, DPPH activities were $83.76{\pm}0.60$ and $88.28{\pm}0.17%$, and FRAP activities were $77.63{\pm}0.70$ and $82.83{\pm}0.39%$ for extracts from aerial part and underground part, respectively. ABTS activities were $68.60{\pm}1.24$ and $63.41{\pm}0.57%$ for underground and aerial part respectively when extracts were processed at 0.1 mg/ml. The Liver protective effects of CJ were higher in the extracts from underground part compared to the aerial part, Liver cells were damaged by treating them with t-BHP, $H_2O_2$ and Ethanol, and then they were treated with 0.2 mg/ml CJ extracts. The survival rates of the damaged liver cells were $49.58{\pm}0.34$, $76.87{\pm}1.10$ and $71.73{\pm}0.58%$ respectively, which were higher than the cells not treated with extracts.

엉겅퀴(C. japonicum) 부위별 추출물을 기능성 식품소재로 활용가능성을 알아보기 위해서 총 페놀 및 silymarin 화합물의 함량분석, 항산화 및 간 보호효과를 서양엉겅퀴와 비교하였다. 엉겅퀴의 총 페놀함량은 지상부($97.22{\pm}5.51mg/g$)가 지하부($85.32{\pm}3.06mg/g$)보다 많았으며, 서양엉겅퀴의 전초보다 다소 낮은 함량을 보였다. 엉겅퀴의 silymarin 화합물의 총 함량은 서양엉겅퀴의 55.56%이었으며, 지하부($0.47{\pm}0.03mg/g$)는 지상부($0.18{\pm}0.02mg/g$)보다 많이 함유되어 있었다. 또한 지상부에서는 silychristin, silydianin이, 지하부에서는 silychristin, silydianin, silybin B, isosilybin B 등이 검출되었다. 엉겅퀴의 항산화활성은 대체로 서양엉겅퀴보다는 약간 낮았고, 지하부가 지상부보다 높은 활성을 보였다. 엉겅퀴 추출물을 1 mg/ml 농도로 처리하였을 때, DPPH 활성은 지상부와 지하부에서 각각 $83.76{\pm}0.60%$, $88.28{\pm}0.17%$의 활성을 나타났으며, FRAP 활성은 지상부와 지하부에서 각각 $77.63{\pm}0.70$, $82.83{\pm}0.39%$로 나타났다. ABTS 활성도 엉겅퀴 추출물을 0.1 mg/ml 농도로 처리하였을 때, 지하부와 지상부에서 각각 $68.60{\pm}1.24%$$63.41{\pm}0.57%$로 나타났다. 엉겅퀴 추출물의 간 보호효과는 지하부에서 지상부보다 다소 높은 활성이 나타났으나 서양엉겅퀴 지상부의 활성보다는 낮았다. t-BHP, $H_2O_2$ 및 Ethanol의 처리에 따른 손상된 간세포에 엉겅퀴 추출물을 0.2 mg/ml씩 처리하였을 때, 세포생존율은 각각 $49.58{\pm}0.34$, $76.87{\pm}1.10$$71.73{\pm}0.58%$로서 추출물을 처리하지 않았을 때보다 각각 24.78, 61.32 및 38.04%씩 높아졌다. 이와 같은 결과로 볼 때, 본 연구에서는 국내산 엉겅퀴의 간 보호효과를 활용한 기능성 식품의 개발이 가능할 것으로 생각되었다.

Keywords

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