AN AGLUCONE ISOFLAVONE ENRICHED VEGETABLE PROTEIN EXTRACT AND ISOLATE AND PROCESS FOR PRODUCING

摘要

Aglucone isoflavone enriched vegetable protein extract and isolate and process forproducing and recovering are disclosed. The aglucone isoflavone extract is made byextracting a vegetable protein material comprising glucone isoflavones with an aqueousextractant having a pH above about the isoelectric point of the protein material to producean aqueous extract, and reacting the glucone isoflavones with a sufficient amount ofbeta-glucosidase enzyme or esterase enzyme for a time period, temperature, and pH sufficientto convert at least a majority of the glucone isoflavones in the extract to agluconeisoflavones and thereby produce the aglucone isoflavone enriched extract. The agluconeisoflavone enriched isolates are produced by adjusting the pH of the reacted extract toabout the isoelectric point of the vegetable protein material to precipitate the proteinmaterial, and separating the protein material to produce an aglucone enriched proteinisolate.