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Biological Activity of Dandelion (Taraxacum officinale) extracts Fermented with Raw Sugar

당 첨가 민들레(Taraxacum officinale) 발효물의 생리활성

  • Kim, Kyung-Min (Department of Food Science and Biotechnology, Kangwon National University) ;
  • Kim, Young-Nam (Agriproduct Processing Experiment Station, Gangwon-do Agricultural Research & Experiment Services) ;
  • Choi, Byoung-Kon (Agriproduct Processing Experiment Station, Gangwon-do Agricultural Research & Experiment Services) ;
  • Oh, Deog-Hwan (Department of Food Science and Biotechnology, Kangwon National University)
  • 김경민 (강원대학교 식품생명공학과) ;
  • 김영남 (강원도농업기술원 농산물이용시험) ;
  • 최병곤 (강원도농업기술원 농산물이용시험) ;
  • 오덕환 (강원대학교 식품생명공학과)
  • Received : 2012.06.04
  • Accepted : 2012.07.18
  • Published : 2012.10.31

Abstract

Dandelions were fermented for 120 days at $15-20^{\circ}C$ in batches containing thirty and fifty percent raw sugar (FD30 and FD50). The total phenolic concentration of FD30 and FD50 were about $78.9{\pm}2.17$ and $59.35{\pm}2.56$ mg/g, respectively, both being higher than the 2$54.{\pm}1.49$ mg/g determined for DWE (dandelion water extract). The DPPH radical scavenging activity of FD30 and FD50 showed $IC_{50}$ values of $118.7{\pm}2.03$ and $123.40{\pm}2.15{\mu}g/mL$, respectively, and FD30 displayed the highest antioxidant activity. 2 mg/mL of FD30 and FD50 showed $8.8{\pm}1.72$ and $11.8{\pm}2.87{\mu}M$ production of NO, respectively, compared with $4.9{\pm}1.20{\mu}M$ of the dandelion extract. The protease, ${\alpha}$-amylase, and lipase activity of FD50 was the highest. The fibrinolytic activity of FD30 and FD50 were $0.56{\pm}0.28$ and $1.39{\pm}0.20$ unit/mg protein, respectively, which was substantially higher than the 0.28 unit/mg protein of DWE. In conclusion, the dandelions fermented by sugar showed improved antioxidant, anti-inflammatory and enzymatic activities.

본 연구는 민들레에 각각 30, 50% 당을 첨가하고 15-20에서 120일간 발효를 하여 30% 당을 첨가하여 발효시킨 민들레 발효물(FD30), 50% 당을 첨가하여 발효시킨 민들레 발효물(FD50)로 진행되었다. 총 페놀성 화합물 함량은 FD30, FD50이 각각 $78.9{\pm}2.17$, $59.35{\pm}2.56$ mg/g으로 DWE(dandelion water extract)의 $54.2{\pm}1.49$ mg/g 보다 높은 결과를 나타냈다. $IC_{50}$으로 나타낸 DPPH 라디칼 소거활성은 FD30이 $118.7{\pm}2.03{\mu}g/mL$, FD50이 $123.40{\pm}2.15{\mu}g/mL$의 결과를 나타냈고 FD30이 높은 항산화 효과를 보인다는 것을 확인했다. 항염활성을 보기 위해 실시한 NO 소거능은 FD30, FD50 모두 2 mg/mL 농도로 처리했을 때 $8.8{\pm}1.72$, $11.8{\pm}2.87{\mu}M$, 같은 농도의 민들레추출물은 $4.9{\pm}1.20{\mu}M$를 나타냈다. 효소활성능은 FD50이 탄수화물 분해, 단백질 분해, 지질 분해에서 높은 활성을 보였다. 혈전용해 활성은 FD30, FD50이 각각 $0.56{\pm}0.28$, $1.39{\pm}0.20$ unit/mg protein 활성을 보였으며 DWE는 0.28 unit/mg protein 의 활성을 나타냈다. 이 연구를 통해 당을 첨가하여 발효시킨 민들레 발효물의 항산화 및 항염 활성을 확인하였고, 여러 가지 유용한 효소활성을 입증하였다.

Keywords

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