Saponin Composition and Physico-Chemical Properties of Korean Red Ginseng Extract as Affected by Extracting Conditions

추출조건에 따른 홍삼추출액의 사포닌 조성 및 이화학적 특성

  • 이승호 ((주)내추럴하우스 기술연구소) ;
  • 강정일 ((주)내추럴하우스 기술연구소) ;
  • 이상윤 ((주)내추럴하우스 기술연구소)
  • Published : 2008.02.29


In this study, the composition of saponin and physico-chemical properties of Korean red ginseng extract was analyzed based on various extracting conditions. The total saponin and individual ginsenoside concentration of the red ginseng extract showed a decreasing trend as the extracting temperature and time increased; also, the extracting condition at $75^{\circ}C$ for 24 hours showed the highest concentration. In contrast, the concentration of $Rg_3$ increased as the extracting temperature and time increased within the particular range. It was suggested that a certain part of ginsenosides changes to $Rg_3$ according to extracting conditions; thus, the concentration of $Rg_3$ increased. Physico-chemical properties of Korean red ginseng extract based on the extracting conditions were different compared to those for saponin; so, as the extracting temperature and time increased, brix and color difference increased but pH decreased indicating stabilization of the overall quality of the product. Therefore, the most appropriate extracting condition for both the product quality of Korean red ginseng extract and stable extraction of saponin was $80^{\circ}C$ within 48 hours, minimizing the loss of ginsenosides.


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