Separation of 6-Gingerol from Ginger [Zingiber officinale Roscoe] and Antioxidative Activity

생강으로부터 6-Gingerol의 분리 및 항산화 활성

  • Lee, Bong-Soo (MJ Health Foods Association) ;
  • Ko, Meyong-Seok (MJ Health Foods Association) ;
  • Kim, Hyun-Jong (Research Center of Industrial Technology, Chonbuk National University) ;
  • Kwak, In-Seob (Research Center of Industrial Technology, Chonbuk National University) ;
  • Kim, Dong-Ho (Department of Bioprocess Engineering, Chonbuk National University) ;
  • Chung, Bong-Woo (Research Center of Industrial Technology, Chonbuk National University)
  • 이봉수 (무주군약초조합 부설연구소) ;
  • 고명석 (무주군약초조합 부설연구소) ;
  • 김현종 (전북대학교 공업기술연구센터) ;
  • 곽인섭 (전북대학교 공업기술연구센터) ;
  • 김동호 (전북대학교 생물공정공학과) ;
  • 정봉우 (전북대학교 공업기술연구센터)
  • Published : 2006.12.30

Abstract

Ginger (Zingiber officinale) is widely used as a dietary condiment throughout the world. Its major constituent, 6-gingerol, exhibits diverse pharmacological activities including anti-oxidant and anti-tumor. Ginger were extracted by 0% to 95% ethanol. Maximum yield of 6-gingerol was obtained with 80% ethanol as extracting solvent at $30^{\circ}C$. We obtained increased yield (7%) of extraction by pretreatment with ultrasonication. Gingerols in the crude ginger extract was isolated by Sepacore preparative liquid chromatography on silica gel. We got the 6-gingerol which weight is 0.53 mg/mL, from fraction F9. Antioxidant effect of 6-gingerol were detected by DPPH moth(10. Its radical scavenging activity was $95{\sim}99%$ which compared with ascorbic acid.

이상의 실험결과를 종합해보면 6-gingerol의 최적추출조건은 $30^{\circ}C$에서 80% 에탄올을 이용하여 추출함이 바람직하다고 여겨진다. 또한 용매만을 이용해서 추출하는 것보다 초음파를 도입하여 추출하는 것이 7% 정도 높은 결과를 얻는 것을 확인할 수 있었다. 6-gingerol의 경우 분취크로마토그래피를 이용했을 때 비교적 높은 순도의 gingerol을 얻을 수 있었으며, F9 분획에서 $0.53\;mg/m{\ell}$의 6-gingerol를 얻었다. 6-gingerol의 항산화 활성은 아스코르브산의 95% 정도로 매우 높게 나타났다. 또한 항산화 활성을 나타내는 다른 물질이 포함되어 있다는 것을 확인할 수 있었다.

Keywords

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