치위생과학회지 (Journal of dental hygiene science)

  • 제12권2호
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  • Pages.155-162
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  • 2012
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  • 1598-4478(pISSN)
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  • 2233-7679(eISSN)
한국치위생과학회 (The Korean Society of Dental Hygiene Science)
권호 표지

소목(Caesalpinia sappan L.)의 에틸아세테이트 분획물이 Streptococcus mutans에 대한 항균활성 및 부착 억제

Antimicrobial Activities and Adherence Inhibition on Streptococcus mutans by Ethyl Acetate Extract from Caesalpinia sappan L.

  • Kwon, Hyun-Jung (Dept. of Biology, College of Natural Science, Soonchunhyang University) ;
  • Kim, Yong-Hyun (Dept. of Biology, College of Natural Science, Soonchunhyang University) ;
  • Han, Kook-Il (Dept. of Biology, College of Natural Science, Soonchunhyang University) ;
  • Jeon, Mi-Ae (Dept. of Biology, College of Natural Science, Soonchunhyang University) ;
  • Han, Man-Deuk (Dept. of Biology, College of Natural Science, Soonchunhyang University)
  • 발행 : 2012.04.30
⟨ 이전 논문 다음 논문 ⟩

초록

본 연구는 소목(Caesalpinia sappan L.)의 6가지 유기용매 분획물 중 IP-3의 항균활성을 및 부착능을 측정하고 다음과 같은 결과를 얻었다. 1. Methanol에 의해 분리된 소목의 항균 물질 수율은 총 4.8%로 나타났으며, 여러 분획물 가운데 EtOAc 분획물(IP-3)에서 3.94%로 가장 높은 수율을 보였다. 2. 소목의 EtOAc 분획물에서 최종 정제된 활성물질은 UV 288.3 nm에서 최대 흡수피크를 나타내었으며, NMR spectrum을 통해 brazilin(($C_{16}H_{14}O_5$)으로 확인되었다. 3. S. mutans에 대한 소목의 EtOAc 분획물의 항균 활성은 최소억제농도(MIC) 3.1 mg/ml에서 균의 생장을 억제하였다. 4. S. mutans 부착억제효과는 하이드록시아파타이트(HA)를 S. mutans와 24 시간 동안 함께 배양한 대조군은 균 부착률이 높게 관찰되었으나, 소목의 EtOAc 분획물을 처리한 군에서는 HA에 S. mutans의 부착이 매우 적게 나타났다. 이상의 결과를 통해, 소목에서 추출된 EtOAc 분획에 존재하는 brazilin이 구강 내 우식원성세균에 강한 항균력을 가지고 있는 것으로 판단되며, 특히 S. mutans의 부착 억제능이 확인되어 우식원성 균주에 대한 생약치료제로 활용이 가능할 것으로 사료된다.

Somok, the heart wood of Caesalpinia sappan is used in traditional Chinese medicine. Adherence of S. mutans to the tooth surface can result in the formation of a dental plaque. This study was performed to investigate the antibacterial activity and bacterial adhesion of ethyl acetate extract from C. sappan against S. mutans ATCC 25175. The bacteria were cultured in brain heart infusion(BHI) broth, and then incubated under 5% $CO_2$ at $37^{\circ}C$ for 18~24 hours. The antimicrobial activity of the ethyl acetate extract of C. sappan was then examined using the paper disc methods and MIC. In addition, bacterial adherence to hydroxyapatite was also examined. The ethyl acetate extract was shown to produce inhibitory effects and had MIC values of 125 mg/ml against S. mutans ATCC 25175. The ethyl acetate extract inhibited adhesion of S. mutans to saliva coated-hydroxyapatite beads(S-HA). At 24 hr, the ethyl acetate extract significantly reduced the adherence of S. mutans to S-HA beads relative to the control. The isolated active substance was identified as brazilin($C_{16}H_{14}O_5$) by $^1H-NMR$ and $^{13}C-NMR$. Thus, the application of C. sappan can be considered a useful and practical method for the prevention of dental caries.

키워드

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