Patent ID: 7169425

Claim:
A process for preparing a treated soy protein-containing composition, the process comprising: feeding a food-grade soy protein-containing composition having a pH of from 6 to 10 to a chromatographic separation zone, the chromatographic separation zone comprising a bed of size exclusion resin, the resin having a size exclusion limit, passing the food-grade soy protein-containing composition through the bed of size exclusion resin to reduce the concentration of components in the food-grade soy protein-containing composition having a molecular weight less than the size exclusion limit of the resin to form the treated soy protein-containing composition, eluting the treated soy protein-containing composition from the chromatographic separation zone after it has passed through the bed of size exclusion resin, and drying the treated soy protein-containing composition after it has been eluted from the chromatographic separation zone.