Abstract
Six isoflavonoids having beta-galactosidase inhibiting activity were isolated from the culture filtrate of Streptomyces xanthophaeus. Their structures were determined by spectral analyses to be daidzein, daidzein 7-alpha-L-rhamnoside, daidzein 4',7-di-alpha-L-rhamnoside, genistein, genistein 7-alpha-L-rhamnoside and genistein 4',7-di-alpha-L-rhamnoside.
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Actinomycetales / metabolism*
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Chemical Phenomena
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Chemistry, Physical
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Fermentation
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Flavonoids / pharmacology*
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Galactosidases / antagonists & inhibitors*
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Isoflavones / analysis
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Isoflavones / metabolism
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Isoflavones / pharmacology*
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beta-Galactosidase / antagonists & inhibitors*
Substances
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Flavonoids
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Isoflavones
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Galactosidases
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beta-Galactosidase