Batch Time Course Behaviors of Growth and Berberine Production in Plant cell suspension Cultures of Thalictrum rugosum.

Thalictrum rugosum 식물세포배양에 있어서 시간에 따른 세포성장 및 Berberine 생산의 변화

Batch growth of plant cell suspension cultures of Thalictrum rugosum was studied to clarify the kinetic behaviors. It was found that the product formation was growth associated. The specific growth rate was $0.20-0.25\;day\;^{-1}$/TEX> at the growth phase and the FW/DCW ratio was an interesting parameter which represented the status of the cells or the status of sugar concentration. The cell yield was 0.36 g cells/g sugar. The maximum berberine level was 139 mg/L of which 120 mg/L was intracellular. In terms of the specific content of berberine, the product was 1.10% of dry cell weight. At the growth phase, the relationship between the specific growth rate and sugar concentration was described well by Monod kinetics.

본 논문에서는 Thalictrum rugosum 식물세포의 회분식 배양에 있어서 동역학적 특성들을 연구하였다. 본 실험에서 alkaloid의 생성은 일반적인 2차대사 산물의 생성 특성과 달리 세포성장에 비례함이 확인되었다. 세포 성장기의 비증식속도는 $0.20~0.25\;day\;^{-1}이었으며 FW / DCW 비가 배양상태를 나타내는 중요한 인자임을 알수 있었다. Cell yield는 0.36g cells/g sugar이었으며 berberine은 139mg/L까지 생성되었고 그중 120mg/L는 세포내에 존재하였다. 이를 specific content로 계산하면 dry cell weight의 1.10%가 된다. 세포 성장기에서 비증식속도와 당농도간의 관계는 Monod kinetics로 잘 기술될 수 있었다.