生薬の無機化学的研究(第9報) : ケイ光X線法による生薬中の無機成分の検討(その6) : オタネニンジンとキキョウについて : 薬用植物の金属含量に及ぼす生育段階と部位の影響

概要

論文の詳細を見る
To elucidate the vegetational changes of inorganic constituents and the metal distribution in medicinal plants, many plant samples of Panax ginseng and Platycodon grandiflorum were analyzed by using energy-dispersive X-ray fluorescence spectrometry. The results can be summarized as follows: I. Panax ginseng (1) Panax ginseng samples of the same vegetational period, collected at the same place exhibited the same metal profile: the metal profile is apparently not affected by the cultivation period. (2) Different parts of plants have different metal profiles: leaves and stems contained various elements generally at higher levels than the root. (3) Ginseng Radix produced in different places showed similar metal profiles. Nevertheless, the ratios of Sr/Ca and Rb/K may provide information about the place where they have been grown. II. Platycodon grandiflorum (4) Fe, Ti, Cl and P concentrations of the root of P. grandiflorum varied according to the vegetational period, especially in the flowering and fruit bearing periods. (5) The element concentrations in different parts of plant seemed to be affected differently by the vegetational stages: K and Ca contents of the leaves of P. grandiflorum were related to the vegetational period but those in the root were not. (6) The Fe and K contents can provide valuable information for the identification of Platycodi Radix and Ginseng Radix.
1990-12-20