KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Inhibition Effect of the Extracts of Trichloma matsutake Mycelia on Tyrosinase Activity

송이[Tricholoma matsutake]에서 분리된 균사 배양액의 Tyrosinase 억제효과

  • 우현정 (충북대학교 자연과학대학생명과학부) ;
  • 양덕조 (충북대학교 자연과학대학생명과학부)
  • Published : 2003.02.01
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Abstract

In this study, the optimum conditions for mycelium culture of the mushroom Tricholoma matsutake and the inhibitory effect of the mycelium extracts no tyrosinase activity have been examined. When the extracts of the Tricholoma matsutake mycelia were tested for inhibitory activity on tyrosinase, it was found that the components extracted with ethyl acetate and water showed the highest inhibitory activity. The effect of antioxidants on the growth of mycelium and tyrosinase-inhibiting activity was also investigated. The results showed that tocopherol inhibited the growth in a concentration-dependent manner. In terms of tyrosinase-inhibiting activity, however, tocopherol was found to enhance the inhibitory activity.

송이의 공시균(KFR1432)과 실험실에서 자체 분리한 균(YxT, WxT, $\textrm{NK}_3\textrm{T}$)의 생장속도의 차이와 FE SEM으로 확인한 미세구조의 차이로 공시균과 자체 분리균이 서로 다른 균임을 확인할 수 있었다. Tyrosinase 활성 억제 실험을 위해 각각 균사체의 열수 추출물, 에탄올 추출물, 배양액을 hexane, chloroform, ethyl acetate로 분획하였다. 그 결과 모든 균의 ethyl acetate 분획층과 수층에서 tyrosinase 활성을 억제하는 것으로 나타났으며, KFR1432의 ethyl acetate 분획층과 YxT의 수층에서 억제율이 100%를 넘어 큰 저해 활성을 보였다. 또한 항산화제 처리 결과 ascorbic acid와 glutathion은 생장을 다소 증가시키거나 별 영향을 주지 못한 반면, tocopherol 의 경우 농도가 높아질수록 생장을 억제하는 것으로 나타났다. Tyrosinase 활성 억제에 있어서는 모든 항산화제 처리구에서 무처리구에 비해 높은 억제율을 보였다.

Keywords

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