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In vitro Comparision of Biological Activities of Solvent Fraction Extracts from Orostachys japonicus

와송(Orostachys japonicus) 용매별 분획 추출물의 항산화, 항균 및 암세포 독성 비교

  • 김승미 (조선대학교 자연과학대학 생명과학과) ;
  • 박정훈 (조선대학교 자연과학대학 생명과학과) ;
  • 부희옥 (조선대학교 자연과학대학 생명과학과) ;
  • 송상기 (조선대학교 자연과학대학 생명과학과) ;
  • 박현용 (조선대학교 자연과학대학 생명과학과)
  • Received : 2017.01.18
  • Accepted : 2017.04.13
  • Published : 2017.04.30

Abstract

This study was conducted to evaluate the contents of total polyphenol and flavonoid, and the effect of antioxidant, antimicrobial activities and cytotoxicity in vitro by different solvent fractions from Orostachys japonicus. The ethylacetate fraction extract for O. japonicus contained $634.48{\mu}g/g$ polyphenol and $205.20{\mu}g/g$ flavonoid. The ABTS radical scavenging ability of ethylacetate fraction extract at 1 mg/ml was higher than 95% which is comparable to ascorbic acid of 97%. The APX enzymatic activity and CAT activity were $1125.89{\mu}mol$ ascorbate oxidized/min/mg protein and 119.87 H2O2 decomposed/min/mg protein, respectively. In disc agar plate diffusion assay, the extract gave rise to a larger inhibition circle with Listeria monocytogenes, Staphylococcus epidermidis, Staphylococcus aureus and Malassezia furfur strains compared with antibiotics kanamycin suggestive of high antibiotic activity. The cytotoxicity of extracts of O. japonicus was significant differences between solvent fractions. That is, the cytotoxic effect against human cancer cell was higher in ethylacetate fraction extract than other fraction extracts. These results suggest that fraction extract of O. japonicus might be very effective and economical in developing natural antioxidant and antimicrobial.

와송 ethylacetate 분획추출물의 폴리페놀 함량은 $634.48{\mu}g/mg$, 플라보노이드 함량은 $205.20{\mu}g/mg$로 나타났다. 또한 항산화 활성을 보면, ethylacetate 분획추출물의 1 mg/ml 농도에서 DPPH radical, ABTS radical 소거능은 95% 이상으로, ascorbic acid의 97%의 소거능과 거의 유사한 결과를 보여 높은 항산화능을 확인할 수 있었다. 항산화효소 활성의 경우, APX 및 CAT 효소 활성은 $1125.89{\mu}mol$ ascorbate oxidized/min/mg protein, 119.87mmol $H_2O_2$ decomposed/min/mg protein 으로 높은 것으로 나타났다. 항균활성은 Listeria monocytogenes, Staphylococcus epidermidis, Staphylococcus aureus, Malassezia furfur 균주에서 항생제 kanamycin보다 큰 저해환을 형성하여 높은 항균력이 확인되었다. 또한 와송의 용매분획별 추출물의 인체암 세포주에 대한 세포증식억제 효과는 특히 ethylacetate 분획추출물에서 폐암, 유방암에 대해 높은 효과를 나타냈다. 이와 같은 결과들을 종합하면 와송의 ethylacetate 분획추출물을 이용한 천연 항산화제와, 천연 항균제로서의 개발 가치가 높은 것으로 기대되어 경제성 있는 천연소재가 될 것으로 사료된다.

Keywords

References

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