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Separation and Purification of Antioxidant Activity Acidic Polysaccharide from Red Ginseng Marc

홍삼박으로부터 항산화 활성 산성다당체 분리 정제 및 구조 분석

  • Ha, Yoo Jin (Department of Food and Biotechnology, Joongbu University) ;
  • Kim, Seul Ki (Department of Food and Biotechnology, Joongbu University) ;
  • Yoo, Seong Eui (Department of Food and Biotechnology, Joongbu University) ;
  • Yoo, Sun Kyun (Department of Food and Biotechnology, Joongbu University)
  • 하유진 (중부대학교 식품생명과학과) ;
  • 김슬기 (중부대학교 식품생명과학과) ;
  • 유성의 (중부대학교 식품생명과학과) ;
  • 유선균 (중부대학교 식품생명과학과)
  • Received : 2017.11.08
  • Accepted : 2017.12.05
  • Published : 2017.12.30

Abstract

The by-products of red ginseng marc showing the improvement of health has been strongly studied because of the expectation of possibility to be used as the functional foods. This research was to investigate the extraction, separation, isolation, and evaluation of crude acidic polysaccharides related to antioxidant activity, sequently chemical structure of those products was evaluated by FT-IR and NMR. Compared with other solvents such as ethanol, methanol, propanol, acetone, and butanol, ethanol was selected. The concentration of red ginseng solution for extraction was selected as 10%(w/v) related to extraction yield(11.95%) and amount(11.8 mg/ml). In the ion exchange chromatography, aidic polysaccharides showing the highest antioxidant activity was obtained when eluted by distilled water. As results of structural analysis by FT-IR and NMR, peaks corresponding to C-O, C-O-O-, C-H, anomeric C-6, and repeated C-1 and C-6 linkages was to be presumed to be ($1{\rightarrow}6$) glycosidic linkage with the typical acidic polysaccharide.

홍삼 제조 부산물인 홍삼박은 항산화 등 생리활성을 보여 줌에 따라 건강기능식품 소재로의 가능성이 높아가고 잇다. 본 연구에서는 홍삼박으로 부터 조산성다당체 추출 하고 다당체중에서 항산화능을 보여주는 산성다당체를 분리 및 정제를 하였다. 계속해서 FT-IR 및 NMR을 이용하여 분자구조적 특성을 분석하였다. 산성다당체의 추출은 10%(w/v) 홍삼박 용액을 원심분리기를 이용하여 불순물을 제거하고 ethanol, methanol, propanol, acetone 및 butanol을 이용하여 최적 용매를 선정하였고, 선정된 용매 ethanol을 이용하여 홍삼박 농도별 추출을 수행하였다. 산성다당체 추출 수율(11.95%) 및 양(11.8 mg/mL) 을 비교한 결과 홍삼박 용액 농도, 10%(w/v)를 최적 농도로 선정을 하였다. 이온교한수지를 이용하여 추출된 조산성다당체로부터 가장 높은 항산화 특성을 보여주는 산성다당체는 증류수로 용출된 다당체이다. 계속해서 구조분석 결과 C-O, C-O-O-, 및 C-H 결합들과 anomeric C-6의 피크가 나타났고 C-1과 C-6의 피크들이 동일한 강도를 나타내는 것으로 보아 ($1{\rightarrow}6$) glycosidic 결합이 존재함을 보여주어 전형적인 산성다당체의 특성 보여주었다.

Keywords

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