Soyasaponins from Soybean Flour Medium for the Liquid Culture of Ganoderma applanatum

Title
Soyasaponins from Soybean Flour Medium for the Liquid Culture of Ganoderma applanatum
Author(s)
심상희강삼식[강삼식]김주선[김주선]이소영[이소영]
Keywords
TRITERPENE GLYCOSIDES; SAPONINS; QUANTIFICATION; CHROMATOGRAPHY; SAPOGENOL; STEROIDS; SHIFTS; SOY
Issue Date
201110
Publisher
KOREAN CHEMICAL SOC
Citation
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.32, no.10, pp.3650 - 3654
Abstract
Two new unusual soyasaponins named 6 ''-O-methyldehydrosoyasaponin I (7) and desglucosylsoyasaponin A(1) (10) along with eight known saponins, dehydrosoyasaponin IV (1), dehydrosoyasaponin Ill (= impatienoside A) (2), soyasaponin III (3), dehydrosoyasaponin II (= soyasaponin Bg) (4), soyasaponin II (5), dehydrosoyasaponin I (= soyasaponin Be) (6), soyasaponin I (8), and kudzusaponin SA(3) (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 SA(3) (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.
URI
http://hdl.handle.net/YU.REPOSITORY/24397http://dx.doi.org/10.5012/bkcs.2011.32.10.3650
ISSN
0253-2964
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생명공학부 > 생명공학부 > Articles
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