Isoflavone rich protein isolate and process for producing

Details Isoflavone rich protein isolate and process for producing Isoflavone rich protein isolate and process for producing

A - Human Necessities

23

J

A23J 1/14 (2006.01) A23J 3/16 (2006.01) C07D 311/36 (2006.01) C07H 15/26 (2006.01)

Patent

CA 2290004

A process for providing a isoflavone rich protein isolate is provided, along with the isoflavone rich protein isolate produced thereby. A vegetable material containing protein and at least one isoflavone compound is extracted with an aqueous extractant having a neutral pH. The protein and isoflavones are extracted into the extractant, and the extractant containing the protein and isoflavones is separated from insoluble vegetable materials to form a protein extract. The pH of the protein extract is adjusted to about the isoelectric point of the protein to precipitate the protein. The extract containing the precipitated protein is cooled to a temperature of from 30°F to 90°F, and then the protein is separated from the extract. The cool separation temperatures unexpectedly significantly increase the concentration of isoflavones recovered in the separated protein, while the neutral extract pH inhibits loss of protein normally observed at cool or cold separation temperatures.

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