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Characteristics of Absorption and Accumulation of Inorganic Germanium in Panax ginseng C. A. Meyer

  • Kang, Je-Yong (Research Institute, Korea Ginseng Corporation) ;
  • Park, Chan-Soo (Research Institute, Korea Ginseng Corporation) ;
  • Ko, Sung-Ryong (Research Institute, Korea Ginseng Corporation) ;
  • In, Kyo (Research Institute, Korea Ginseng Corporation) ;
  • Park, Chol-Soo (Research Institute, Korea Ginseng Corporation) ;
  • Lee, Dong-Yun (Research Institute, Korea Ginseng Corporation) ;
  • Yang, Deok-Chun (Department of Oriental Medicinal Materials and Processing, Kyung Hee University)
  • Received : 2010.05.14
  • Accepted : 2010.07.14
  • Published : 2011.03.29

Abstract

The characteristics of absorption and accumulation of inorganic germanium in Panax ginseng C. A. Meyer were examined. In 4-year-old P. ginseng, the germanium content of the field soil increased with increased amounts and frequencies of inorganic germanium application, while chemical components of the soil, such as available phosphate and exchangeable calcium, potassium, and magnesium, decreased with the increased inorganic germanium application. In the 4-year-old P. ginseng, the germanium content was highest in the rhizome and increased in the order of stem, leaf, lateral root, and main root, suggesting that inorganic germanium was absorbed from the root and translocated to the stem and leaf via the rhizome. As for changes in ginsenosides in 4-year-old P. ginseng rhizomes, the contents of ginsenosides $Rb_1$, $Rb_2$, Re, and Rf decreased as the germanium content in soil increased. Ginsenosides $Rb_1$, $Rb_2$, Rc, Re, and Rf in the main root also decreased with increasing germanium content in the main root. The results suggest that inorganic germanium treatment may increase organic germanium in harvested P. ginseng, thus enhancing the medicinal effi cacy of ginseng products.

Keywords

Panax ginseng;Germanium;Absorption;Accumulation;Soil

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