抄録
The saponin constituents in various kinds of soybeans : cultivated in several Prefectures in Japan, imported from U. S. A., Canada, and China, and black soybean cultivated in Hyogo Prefecture in Japan, have been investigated and soyasaponins I (1), II (2), III (3), A1 (4), and A2 (5) have been characterized from all kinds of soybeans. It has been found that soyasapoins in imported soybeans and black soybean are more or less acetylated and this makes the thin-layer chromatograms of soyasaponins from these soybeans rather complicated. In order to clarify the soyasaponin contents in various kinds of soybeans and soybean products, the quantitative analysis method for soyasaponins has been developed by means of gas-liquid chromatography.
