| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 01.01 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Process for sepn plurality of forms of isoflavone fractions consisting of one or more forms of isoflavone in an aq plant starting material - (a) Heating an aq plant starting material to a constant T selected on a basis of an aq. soly. for a desired isoflavone fraction contg at least one isoflavone that is to be recovered - (b) Passing the heated starting material of (a) through an ultrafiltration membrane to obtain a permeate, the membra ne having a cut-off which passes said at least one isoflavo ne fraction - (c) Treat. the permeate with an adsorptive material - (d) Washing material of (c) in water - (e) Eluting said at least one isoflavone fraction from the water-washed adsorptive material of (d) with an aq alc solvent to form a stream - (f) Removing the aq. alc. from the stream formed during the elution of (e) so as to promote crystallization of said at least one isoflavone fraction - (g) Drying prodt of (f) to form dry particles - (h) Adding a solvent to dried prodt of (g) to form mixt - Separating the crystallized isoflavone fraction contg said at least one isoflavone from the mixt of (h) to provide a prodt in a dry or liquid form |
| PATENT PHOTOCOPY | Available on request |
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