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The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Microwave-assisted extraction of paclitaxel from plant cell cultures

Microwave를 이용한 식물세포배양으로부터 paclitaxel 추출

  • Hyun, Jung-Eun (Department of Chemical Engineering, Kongju National University) ;
  • Kim, Jin-Hyun (Department of Chemical Engineering, Kongju National University)
  • 현정은 (공주대학교 화학공학부) ;
  • 김진현 (공주대학교 화학공학부)
  • Published : 2008.08.29
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Abstract

A simple and efficient microwave-assisted extraction procedure was developed and optimized for the extraction of paclitaxel from the plant cell cultures of Taxus chinensis. The biomass, immersed in a methanol-water mixture, was irradiated with microwaves in a closed-vessel system. The microwave-assisted extraction was compared with the existing conventional solvent extraction in terms of yield, extraction time, and solvent consumption. The use of microwave energy allows rapid recovery of paclitaxel from biomass and dramatically reduces extraction time and solvent usage compared to conventional solvent extraction. The paclitaxel was completely extracted from biomass by microwave-assisted extraction for 3 min at $50^{\circ}C$, for 6 min at $30^{\circ}C$ and $40^{\circ}C$, respectively.

본 연구에서는 식물세포배양액에서 회수한 식물세포인 biomass로부터 항암제 paclitaxel을 효율적으로 회수하기 위해, microwave를 이용한 추출 (MAE) 방법을 도입하여 기존의 유기용매 추출 (CSE) 방법과 추출효율을 비교하였다. CSE 방법에서 추출온도 25, $30^{\circ}C$에서는 추출시간 (3, 6, 10 min)에 대해 추출효율이 온도에 영향을 받지 않은 반면, 40, $50^{\circ}C$에서는 추출시간 10 min에서 paclitaxel 수율이 감소하는 경향을 보여 온도에 영향을 받음을 알 수 있었다. CSE 방법의 경우 총 4회의 추출로 식물세포 내 대부분의 paclitaxel을 회수 (>99%) 가능한 반면 MAE 방법의 경우 1회의 추출로 식물세포 내 대부분의 paclitaxel을 회수 (>99%) 가능하였다. MAE 방법이 CSE 방법보다 paclitaxel를 회수하는데 있어서 높은 추출효율, 공정시간 단축, 에너지 절감 효과가 있음을 알 수 있었다. 또한 MAE 공정에서 최적의 biomass/methanol의 비율은 1/1 (w/v)임을 알 수 있었다.

Keywords

References

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