치위생과학회지 (Journal of dental hygiene science)

  • 제11권1호
  • /
  • Pages.37-40
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  • 2011
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  • 1598-4478(pISSN)
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  • 2233-7679(eISSN)
한국치위생과학회 (The Korean Society of Dental Hygiene Science)
권호 표지

Oleanolic acid 및 Ursolic Acid의 Streptococcus downei에 대한 항균작용

Antimicrobial Effect of Oleanolic Acid and Ursolic Acid against Streptococcus downei

  • 박재윤 (조선대학교 의과학전문대학원 생화학 분자생물학교실) ;
  • 김화숙 (전남과학대학 치위생과)
  • Park, Jae-Yoon (Department of Biochemistry and Molecular Biology, Medical School, Chosun University) ;
  • Kim, Hwa-Sook (Department of Dental Hygiene, Chunnam Techno College)
  • 투고 : 2010.12.20
  • 심사 : 2011.02.24
  • 발행 : 2011.02.28
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초록

Triterpenoid saponins 유도체인 OA와 UA가 치아우식증 원인균종의 하나인 Streptococcus downei의 표준균주(ATCC $33748^T$) 및 임상균주(4주)에 대하여, 액체배지희석법을 이용한 MIC값 측정 및 time-kill 분석법을 통한 살균작용 유무를 측정하여 다음과 같은 결과를 얻었다. 1. S. downei ATCC $33748^T$ 및 S. downei 임상균주(4주)들의 OA 대한 MIC 값은 $8{\mu}g/ml$로 동일하였고, UA의 대한 MIC 값은 S. downei 표준균주와 임상균주 간에 차이가 있었다. 2. Time-kill 분석법을 실시한 결과 OA와 UA는 S. downei $33748^T$에 대하여 $2{\times}MIC$ (각각 $16{\mu}g/ml$과 $8{\mu}g/ml$) 이상의 농도에서 살균작용을 갖는다는 것을 알 수 있었다. 이상의 연구결과를 종합할 때, triterpenoid saponins 유도체인 OA와 UA는 뮤탄스 연쇄상구균 중 최근에 사람의 구강 내 치면세균막에 서식하는 것으로 밝혀진 S. downei,에 대해 살균제로 작용할 수 있음을 알 수 있었다.

Oleanolic acid (OA) and ursolic acid (UA) are triterpenoid compound present in many plants. This study examined the antimicrobial activity of OA and UA against Streptococcus downei. The antimicrobial activity was evaluated by the minimal inhibitory concentration (MIC) and time kill curves. The MIC values of OA and UA for S. downei isolated from the Korean population were $8{\mu}g/ml$. OA and UA had a bactericidal effect on S. downei ATCC $33748^T$ above $2{\times}MIC$, $16{\mu}g/ml$ and $8{\mu}g/ml$, respectively. The results suggest that OA and UA can be used in the development of oral hygiene products for the prevention of dental caries.

키워드

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