薬用ニンジンのダマラン系サポニンの定量とその市販ニンジン茶およびニンジンエキスの品質評価への応用
1975 年 95 巻 12 号 p. 1456-1461
詳細
1975 年 95 巻 12 号 p. 1456-1461
On hydrolysis with dilute mineral acid, Ginseng saponins, ginsenosides-Rb1, -Rb2, -Rb3, -Rc, and -Rd yielded panaxadiol (IV), and ginsenosides-Re, -Rf, -Rg1, and -Rg2 and 20-glucoginsenoside-Rf afforded panaxatriol (X). The optimal condition of saponinhydrolysis for the quantitative analysis of IV and X was studied. The crude hydrolysates of methanol extract of Ginseng were trimethylsilylated with N-trimethylsilylimidazole and the saponin content was calibrated by the gas chromatographic determination of TMS-panaxadiol and TMS-panaxatriol, using diacetylhederagenin methyl ester as the internal standard. This procedure was applied to the evaluation of the commercial "Ginseng Tea" and "Ginseng Extract."
