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US 2004/0175475 A1Published application
Water-soluble bean-based extracts
AssigneeQuercegen Pharma LLC
InventorsMitsunori Ono, Keizo Koya, Noriaki Tatsuta, Naoto Yamaguchi, Lan Bo Chen
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Abstract
This invention relates to a water-soluble bean-based extract including one or more isoflavone glycosides. Also disclosed is a method of preparing such a water-soluble bean-based extract.
Claims24
A water-soluble bean-based extract prepared by a method comprising:
- stirring a pulverized crude bean extract and a coagulant in heated water to form a suspension;
- and
- collecting a supernatant of the suspension to obtain a water-soluble bean-based extract;
- wherein the heated water has a temperature of 30-100° C.;
- and the water-soluble bean-based extract containing one or more isoflavone derivatives of the formula:
- 3
- in which R1 is hydrogen or hydroxy, R2 is hydrogen or methoxy, R3 is hydrogen or CO—R4, R4 being methyl or carboxymethyl;
- and the water-soluble bean-based extract, in dried form, includes from about 5 to about 50 parts by weight of isoflavone derivatives and has a solubility from about 10 mg/ml to about 1,000 mg/ml in water at about 25° C.
5 more elements
A method of preparing a water-soluble bean-based extract, comprising:
- stirring a pulverized crude bean extract and a coagulant in heated water to form a suspension;
- and
- collecting a supernatant of the suspension to obtain a water-soluble bean-based extract;
- wherein the heated water has a temperature of 30-100° C.
1 more element
Dependencies are inferred from the claim text.