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Biological Activity of Sorghum bicolor M. cv. Bulgeunjangmoksusu Extracts

붉은장목수수 추출물의 생리활성

  • Kim, Joo-Seok (Division of Bio-resources Technology, Kangwon National University) ;
  • Lee, Yea-Ji (Division of Bio-resources Technology, Kangwon National University) ;
  • Yang, Jinfeng (Division of Bio-resources Technology, Kangwon National University) ;
  • Sa, Yeo-Jin (Division of Bio-resources Technology, Kangwon National University) ;
  • Kim, Myeong-Ok (Division of Bio-resources Technology, Kangwon National University) ;
  • Park, Jong-Hyuk (Oriental Bio-herb Research Institute, Kangwon National University) ;
  • Park, Dong-Sik (Funtional Food & Nutrition Division, Rural Development Administration) ;
  • Yu, Chang-Yeon (Division of Bio-resources Technology, Kangwon National University) ;
  • Kim, Myong-Jo (Division of Bio-resources Technology, Kangwon National University)
  • 김주석 (강원대학교 식물자원응용공학부) ;
  • 이예지 (강원대학교 식물자원응용공학부) ;
  • 양금봉 (강원대학교 식물자원응용공학부) ;
  • 사여진 (강원대학교 식물자원응용공학부) ;
  • 김명옥 (강원대학교 식물자원응용공학부) ;
  • 박종혁 (강원대학교 한방Bio연구소) ;
  • 박동식 (농촌진흥청 국립농업과학원) ;
  • 유창연 (강원대학교 식물자원응용공학부) ;
  • 김명조 (강원대학교 식물자원응용공학부)
  • Received : 2012.11.09
  • Accepted : 2013.02.12
  • Published : 2013.02.28

Abstract

The objective of this study was to determine the biological activities of Sorglum bicolor extracts. Organic fractions, including n-Hexane, EtOAc, and n-BuOH fractions were obtained from the methanol extract of Sorglum bicolor M.. In DPPH radical scavenging activity, $SC_{50}$ values of methanol extract and EtOAc fraction were exhibited $0.66{\pm}0.26{\mu}g/mL$ and $1.03{\pm}0.02{\mu}g/mL$, respectively. Contents of total polyphenol and flavonoids in EtOAc fraction, which were much higher than those of other fractions, were 58.12 mg/g and 4.79 mg/g respectively. Also, effects of reducing power was strongly showed in EtOAc fraction. ${\alpha}$-Glucosidase and ${\alpha}$-amlyase inhibition activities were showed the higher effect in D.W. fraction ($2.83{\mu}g/mL$, $36.64{\mu}g/mL$). In MTT assay in the AGS, HT29 and HCT116 cell lines were significantly higher in the n-BuOH fraction than in the other fractions at $50{\mu}g/mL$ concentration of extracts.

본 연구에서는 붉은장목수수(Sorglum Bicolor M.) MeOH 추출물과 분획물들의 다양한 생리활성을 비교하기 위하여 항산화(DPPH assay, 환원력, 총 페놀 및 플라보노이드 함량), 항당뇨(${\alpha}$-Glucosidase 저해활성 및 ${\alpha}$-Amlyase 저해활성), 항암(MTT assay) 활성을 관찰 하였다. 항산화활성의 경우 EtOAc fraction이 높은 총 페놀과 플라보노이드 함량을 나타내었으며, DPPH assay와 reducing power 결과 역시 EtOAc fraction과 MeOH fraction이 positive control로 사용한 ${\alpha}$-tocopherol보다 우수한 활성을 나타냈다. ${\alpha}$-Glucosidase, ${\alpha}$-amlyase 저해능 평가 결과 D.W. fraction이 가장 높은 활성을 보였으며 n-BuOH fraction과 MeOH extract도 활성을 나타내었다. 암세포인 AGS, HT29, HCT116세포주에 대한 세포독성 연구인 MTT assay에서는 EtOAc, n-BuOH, D.W. fraction을 처리한 처리구에서 독성을 보였으며 이중 n-BuOH fraction이 모든 세포주에서 농도 의존적으로 세포독성을 가지는 것을 확인할 수 있었다. 연구결과 붉은장목수수의 추출물 EtOAc fraction의 항산화활성, D.W. fraction의 항당뇨활성, n-BuOH fraction의 암세포에 대한 독성과 관련된 화합물의 분리 및 구조규명에 관한 연구가 필요 할 것으로 사료되어지며, normal cell에 대한 MTT assay를 진행하여 항암활성에 관한 연구를 진행하여 붉은장목수수 추출물을 이용한 다양한 건강기능식품과 의약품 개발을 통해 건강 증진과 질병으로부터 보호 받을 수 있을 것으로 기대한다.

Keywords

References

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