Claims
- 1. A water-soluble soybean-based extract comprising one or more isoflavone derivatives of the formula
- 2. The water-soluble soybean extract of claim 1, wherein the water-soluble soybean extract, in dried form, includes from about 10 to 20 parts by weight of isoflavone derivatives and has a solubility from about 30 mg/ml to about 300 mg/ml in water at about 25° C.
- 3. The water-soluble soybean extract of claim 1, wherein the water-soluble soybean extract, in dried form, includes from about 10 to about 20 parts by weight of isoflavone derivatives and has a solubility from about 50 mg/ml to about 200 mg/ml in water at about 25° C.
- 4. The water-soluble soybean extract of claim 1, wherein the isoflavone derivative is daidzin, genistin, glycitin, 6″—O— acetyldaidzin, 6″—O— acetylgenistin, 6″—O— acetylglycitin, 6″—O— malonyldaidzin, 6″—O— malonylgenistin, or 6″—O— malonylglycitin.
- 5. The water-soluble soybean extract of claim 4, wherein the water-soluble soybean extract, in dried form, includes from about 10 to about 20 parts by weight of isoflavone derivatives and has a solubility from about 30 mg/ml to about 300 mg/ml in water at about 25° C.
- 6. The water-soluble soybean extract of claim 4, wherein the water-soluble soybean extract, in dried form, includes from about 10 to about 20 parts by weight of isoflavone derivatives and has a solubility from about 50 mg/ml to about 200 mg/ml in water at about 25° C.
- 7. A method of preparing a water-soluble soybean-based extract comprising:
mixing a pulverized crude soybean extract with water; heating the mixture; adding a coagulant to the mixture to form a suspension; heating the suspension; and collecting the supernatant to obtain a water-soluble soybean-based extract.
- 8. A method of preparing a water-soluble soybean-based extract comprising:
mixing about 1 to about 50 parts by weight of a pulverized crude soybean extract with about 100 parts by weight of water; heating the mixture to between about 60° C. and about 100° C. for about 10 to about 120 minutes; adding a coagulant to the mixture to form a suspension, heating the suspension to between about 30° C. and about 100° C. for about 1 to about 120 minutes; and collecting the supernatant to obtain a water-soluble soybean-based extract.
- 9. The method of claim 7, wherein the coagulant is selected from CaCl2, CaSO4, MgCl2, MgSO4, citrus juice, glucono-D-lactone, papain, HCl, H2SO4, H3PO4, citric acid, malic acid, fumaric acid, lactic acid, tartaric acid and saccharin.
- 10. The method of claim 7, wherein the coagulant is an organic acid or inorganic acid.
- 11. The method of claim 10, wherein the coagulant is citric acid.
- 12. The method of claim 9, wherein about 0.01 to about 3 parts by weight of coagulant is added to about 100 parts by weight of water.
- 13. The method of claim 7, wherein the supernatant is collected by filtering the suspension.
- 14. The method of claim 7, further including drying the supernatant to obtain a dried water-soluble soybean-based extract.
- 15. A water-soluble soybean-based extract prepared by the method of claim 7.
- 16. The water-soluble soybean-based extract prepared by the method of claim 8.
- 17. The water-soluble soybean-based extract prepared by the method of claim 9.
- 18. The water-soluble soybean-based extract prepared by the method of claim 12.
- 19. The water-soluble soybean-based extract prepared by the method of claim 13.
- 20. The water-soluble soybean-based extract prepared by the method of claim 14.
- 21. A food product comprising the water-soluble soybean-based extract of claim 1.
- 22. A food product comprising the water-soluble soybean-based extract of claim 6.
- 23. A food product comprising the water-soluble soybean-based extract of claim 15.
- 24. The food product of claim 21, wherein the food product is milk, tea, soft drink, juice, coffee, seasoning, cereal, water, beer, cookies, chewing gum, chocolate, or soup.
- 25. The food product of claim 22, wherein the food product is milk, tea, soft drink, juice, coffee, seasoning, cereal, water, beer, cookies, chewing gum, chocolate, or soup.
- 26. The food product of claim 23, wherein the food product is milk, tea, soft drink, juice, coffee, seasoning, cereal, water, beer, cookies, chewing gum, chocolate, or soup.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] Pursuant to 35 USC § 119(e), this application claims the benefit of prior U.S. provisional application 60/240,906, filed Dec. 17, 1999.
Provisional Applications (1)
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Number |
Date |
Country |
|
60240906 |
Dec 1999 |
US |