Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Solid Phase Extraction(SPE) of Curcuminoids from Turmeric by Optimization Analytical Condition

최적 분석조건에 의한 강황으로부터 Curcuminoids의 고체상추출(SPE)

  • 이광진 (한국한의학연구원 한의신약연구그룹) ;
  • 마진열 (한국한의학연구원 한의신약연구그룹) ;
  • 김영준 (청운대학교 화장품과학과) ;
  • 김영식 (강원대학교 화학공학과)
  • Received : 2012.09.12
  • Accepted : 2012.10.11
  • Published : 2012.10.31
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Abstract

Turmeric is a medicinal herb with various pharmacological activities. Curcumin, demethoxycurcumin(DMC) and bisdemethoxycurcumin(BDMC) were extracted from turmeric by dipping and ultrasonic wave method. And extraction efficiency was identified using solid phase extraction(SPE). The extracted sample were simultaneously separated and analyzed from three kinds of commercial $C_{18}$ reversed-phase high performance liquid chromatography using water and acetonitrile as mobile phase with isocratic elution mode. Flow rate 1.0mL/min, injection volume $10{\mu}L$ and column oven temperature $40^{\circ}C$ at 425nm wavelength has been conducted. From the experimental results, the optimum mobile phase composition of water/acetonitrile 50/50vol% using RS tech column. It is evident that the amount of curcuminoids extracted(extraction time 4h) by 100% MeOH was higher than any aqueous MeOH composition. Finally, in 100% water extraction, the amount(mAU${\times}$mim) of curcuminoids extracted by SPE was 14.3 and 24.5 times respectively higher than ultrasonic wave and dipping method. The shown results can be applied as sources for pharmaceuticals and functional material.

강황은 다양한 약리활성을 가진 약초이다. 강황에 포함된 curcumin, demethoxycurcumin(DMC)과 bisdemethoxycurcumin(BDMC)을 침적과 초음파방법을 이용하여 추출하였다. 그리고 고체상추출(SPE)을 사용하여 추출효율을 확인 하였다. 추출액은 3가지 상업용 $C_{18}$ 역상 고성능 액체 크로마토그래피에 의해 이동상으로 물과 아세토나이트릴을 사용하여 일정용매법으로 동시분리 분석을 하였다. 유속은 1.0mL/min, 주입부피는 $10{\mu}L$, 컬럼오븐 온도 $40^{\circ}C$, 파장 425nm에서 수행되었다. 실험결과, RS tech column을 사용하고 물과 아세토나이트릴의 조성비가 (50 : 50vol%)일 때 최적 조건을 얻을 수 있었다. 용매조성(물과 메탄올)에 따른 추출 수율에의 영향을 살펴본 결과 100% 메탄올에서 curcuminoids(추출시간 4h)가 가장 많이 추출되었고, 수용성 메탄올 조성보다 함량이 높았다. 100% 물에 의해, 고체상추출은 curcuminoids의 추출함량(mAU${\times}$mim)이 침적과 초음파방법보다 24.5와 14.3배 높았다. 이상의 결과는 제약 및 기능성 소재로서의 응용 가능성을 나타내었다.

Keywords

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