本邦産Dioscorea属植物中のSapogenin定量法の研究 (第1報)
Diosgenin, Tokorogeninの比色定量法
1958 年 78 巻 9 号 p. 1068-1071
詳細
1958 年 78 巻 9 号 p. 1068-1071
A new color reaction was found for diosgenin and tokorogenin, the steroidal sapogenins of Dioscorea spp. When diosgenin is warmed in nitrobenzene solution of antimony trichloride added with hydrous methanol, the solution colors orange red, while warming of tokorogenin in phenolic solution of antimony trichloride results in coloration to reddish violet. Diosgenin does not show any coloration to this reagent. These color reactions follow the Beer's law and can be used for colorimetric determination.
