KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Optimal Culture Conditions and XAD Resin on Tropane Alkaloid production in Scopolia parviflora Hairy Root Cultures

미치광이풀 모상근의 배양조건 구명 및 XAD Resin 처리에 의한 Tropane Alkaloid 생산

  • 정희영 (경상대학교 산림과학부) ;
  • 강민정 (경상대학교 산림과학부) ;
  • 강영민 (경상대학교 산림과학부) ;
  • 윤대진 (경상대학교 응용생명과학부) ;
  • 박정동 (경상대학교 응용생명과학부) ;
  • 정영관 (경상대학교 농업생명과학연구원) ;
  • 최명석 (경상대학교 산림과학부)
  • Published : 2002.12.01
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Abstract

The optimum culture conditions for tropane alkaloid production in hairy root cultures of Korea native Scopolia paviflora Nak. were investigated. Hairy root was induced from the rhizome of the mother plant on B5 medium containing 1.0 mg/L IBA. Among the culture media examined, 1/2 B5 medium was the best for tropane alkaloid production, whereas the growth of hairy root increased in SH medium. The best result on the growth of hairy root was obtained in 1.0 mg/L NAA, and tropane alkaloid production was obtained in plant growth regulator-free medium. Of the carbone sources tested, 3% sucrose promoted the growth of hairy root, whereas 5% sucrose increased tropane alkaloid production. Optimum inoculum densities for root growth and tropane alkaloid production were 0.5 g and 1 g, respectively. The addition of XAD resins (1 % w/v) to hairy root cultures led to increases in tropans alkaloid production, and the release of alkaloid into the medium and its adsorption by the resin accounted for about 50 to 80％ of total production. It is concluded that optimized culture conditions and the addition of XAD resins could be used in the development of a bioprocess for tropane alkaloid production in hairy root cultures of S. paviflora Nak.

멸종위기의 자생식물인 미치광이풀로부터 중요 의약품인 tropane alkaloid를 대량 생산하기 위한 연구의 일환으로 모상근의 최적 배양조건 및 XAD를 이용한 물질 생산 최적 조건을 확립하였다. 모상근은 표면 살균된 지하경을 1.0 mg/1 IBA가 첨가된 B5배지에 배양하여 유도하였으며, 다양한 배양조건에서 생장된 모상근의 hyoscyamine과 scopolamine 함량은 HPLC로 분석하였다. 모상근의 생장에 적합한 배지로는 SH배지로 구명되었고, tropane alkaloid 생산을 위한 최적 배지로는 l/2B5배지로 나타났다. 모상근 생장에 가장 좋은 생장조절제로는 NAA로 나타났으며, 물질생산에는 생장조절제가 첨가되지 않은 배지에서 좋았다. 모상근 생장에 적합한 탄소원으로는 3% sucrose였으며, 물질생산에는 5% scurose가 가장 좋았다. 모상근의 생장에 가장 양호한 접종농도는 0.5 g 였으며, 물질생산에는 1 g 처리구에서 좋았다. XAD 처리는 tropans alkaloid 생산성을 증가시켰으며, 배지내 물질방출을 유도하였으며, 총생산 물질의 50-80%를 회수하는 것으로 나타났다. 본 연구 결과는 미치광이풀 모상근 배양을 통한 tropane alkaloid 생산을 위한 생물공정 발전에 기여할 것이다.

Keywords

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