Effects of Black Ginseng (9 Times-Steaming Ginseng) on Hypoglycemic Action and Changes in the Composition of Ginsenosides on the Steaming Process

흑삼(구증구포인삼)이 혈당 강하에 미치는 영향 및 증포별 ginsenoside 조성 변화

  • 김성년 (식품의약품안전청 식품안전국 식품관리과) ;
  • 강신정 (중부대학교 한약자원학과)
  • Published : 2009.02.28


This study examined the effects of black ginseng (9 times-steamed ginseng) on hypoglycemic action in streptozotocininduced diabetic rats as well as changes in ginsenoside composition by the steaming process. As the number of steaming cycles increased, the amounts of crude saponin and most ginsenoside contents decreased, while the amount of ginsenoside- Rg3 and the ratio of PD/PT (=[$Rb_1+Rb_2+Rc+Rd+Rg_3]/[Re+Rb_1+Rh_1]$) increased. This ginsenoside composition is a unique characteristic compared to other types of ginseng products. In order to investigate the hypoglycemic effect of the black ginseng extract, in vivo studies were performed in rats with streptozotocin-induced diabetes. The studies showed that the administration of the black ginseng extract decreased high blood glucose levels (more than 300 mg/dL) to a normal level (102 mg/dL). These results suggest that this black ginseng extract has a significant hypoglycemic effect and can be used as an anti-diabetic substance for dietary supplements or new drugs.


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