Growth and glycyrrhizin contents in Glycyrrhiza uralensis roots cultivated for four years in eastern Nei-Meng-gu of China.
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Accession number;02A0601163
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| Title;Growth and glycyrrhizin contents in Glycyrrhiza uralensis roots cultivated for four years in eastern Nei-Meng-gu of China. |
| Author;
YAMAMOTO Y
(Toyama Medical And Pharmaceutical Univ., Toyama, Jpn)
TANI T
(Toyama Medical And Pharmaceutical Univ., Toyama, Jpn)
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Journal Title;Journal of Traditional Medicines
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Journal Code:Y0941A
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ISSN:1340-6302
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VOL.19;NO.3;PAGE.87-92(2002)
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| Figure&Table&Reference;FIG.5, TBL.1, REF.7 |
| Pub. Country;Japan |
| Language;English |
| Abstract;In China, the collection of wild Glycyrrhiza roots came to be restricted since there is a high possibility of inducing desertification. In order to compensate for the insufficiency of wild Glycyrrhiza resources with cultivated ones, the cultivation study of Glycyrrhiza uralensis has been carried out since 1998 and is still continuing. The cultivation field is located in the eastern region of Nei-Meng-gu, inner Mongolia, which is the habitat of G. uralensis and the major source of Dongbei-Gancao, Tohoku-Kanzo in Japanese. The seeds of G. uralensis were shown on May in 1998 and seedling roots were transplanted to the field the next May. The glycyrrhizin(GL)-content of 4-year-old lateral roots, which were newly grown from the transplanted seedling taproot, exceeded the Japanese Pharmacopoeia XIV standard(2.5% or more GL). This is the first report to examine GL-content of G. uralensis cultivated in northeast China related to cultivation years. However, since GL-content(2.81.+-.0.76%) of 4-year-old lateral roots was at a low level yet, further examinations on improvement of cultivation conditions are in progress to obtain suitable length and thickness of lateral roots, high GL-contents and adequate ingredients-composition similar to those of wild Glycyrrhiza roots currently in use. (author abst.) |
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