6750-59-0Relevant academic research and scientific papers
Soyasaponins from soybean flour medium for the liquid culture of ganoderma applanatum
Lee, So Young,Kim, Ju Sun,Shim, Sang Hee,Kang, Sam Sik
experimental part, p. 3650 - 3654 (2012/01/11)
Two new unusual soyasaponins named 6''-O-methyldehydrosoyasaponin I (7) and desglucosylsoyasaponin A1 (10) along with eight known saponins, dehydrosoyasaponin IV (1), dehydrosoyasaponin III (= impatienoside A) (2), soyasaponin III (3), dehydrosoyasaponin II (= soyasaponin Bg) (4), soyasaponin II (5), dehydrosoyasaponin I (= soyasaponin Be) (6), soyasaponin I (8), and kudzusaponin SA3 (9), were isolated as their methyl esters and identified from the liquid culture of G. applanatum. Their structures were determined by chemical and spectroscopic analyses including 1D- and 2D-NMR as well as by comparison of their spectroscopic data with those of the reported in literatures. Although dehydrosoyasaponin IV was identified by LC-MS/MS method from soy protein isolate, this is the first report of the isolation of this compound. Dehydrosoyasaponin III (2) and kudzusaponin SA3 (9) were also isolated for the first time from soybean. The presence of soyasaponins in Ganoderma species seems to be unusual feature. Thus, we presumed that compounds 1-10 might all be derived from the defatted soybean flour which was added to the culture medium as a nitrogen source.
Triterpenoid saponins from Impatiens siculifer
Li, Wei,Bi, Xueyan,Wang, Kun,Li, Dongxia,Satou, Tadaaki,Koike, Kazuo
experimental part, p. 816 - 821 (2010/05/18)
Triterpenoid saponins, impatienosides A-G, together with 12 known saponins, were isolated from the whole plants of Impatiens siculifer. Their structures were established on the basis of extensive 1D and 2D NMR and MS analyses coupled with chemical degrada
