Food or edible material: processes – compositions – and products – Products per se – or processes of preparing or treating... – Plant material is basic ingredient other than extract,...
Patent
1998-03-05
2000-03-07
Cano, Milton
Food or edible material: processes, compositions, and products
Products per se, or processes of preparing or treating...
Plant material is basic ingredient other than extract,...
426429, 426431, 426490, 426520, 549403, A23L 120
Patent
active
060337141
ABSTRACT:
The temperature sensitive differential of the solubilities of various isoflavone fractions is used to initially separate the fractions by heating an aqueous soy molasses or soy whey feed stream. The temperature of the feed stream is selected according to the temperature at which a desired isoflavone fraction or fractions become soluble. Then, the heated feed stream is passed through an ultrafiltration membrane having a cutoff which further selects desired isoflavone molecules by size. In some examples, the permeate is subjected to reverse osmosis in order to concentrate the solids. The resulting permeate is put through a resin adsorption process carried out in at least one liquid chromatography column to further separate the desired isoflavone fractions. A plurality of such columns may be used to provide a continuous process. Various processes are described for drying and crystallizing the isoflavone fractions. The preferred process includes eluting the output stream from the chromatography column, evaporating the eluted stream, and then using one of the techniques of (1) spray drying, (2) centrifuging, or (3) filtering.
REFERENCES:
patent: 5679806 (1997-10-01), Zheng et al.
patent: 5702752 (1997-12-01), Gugger et al.
patent: 5792503 (1998-08-01), Gugger et al.
Academic Press, Inc.--1985--New Protein Foods, vol. 5, Seed Storage Proteins (This article was cited near the bottom of p. 1 of the specification.).
Grabiel Richard D.
Gugger Eric
Archer Daniels Midland Company
Cano Milton
Childs Lisa C.
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