Patent ID: 11896030
Assignee: R.J. REYNOLDS TOBACCO COMPANY
Field: Food chemistry (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 0:
1. A method for modifying the content of a plant-derived, protein-enriched material, the method comprising
receiving a plant-derived, protein-enriched material comprising RuBisCO, F2 fraction proteins, or a combination thereof, wherein the plant-derived, protein-enriched material further comprises one or more heavy metals;
dissolving at least a portion of the plant-derived, protein-enriched material in a solvent to form a solution,
contacting the plant-derived, protein-enriched material solution with a functionalized resin to afford a treated solution comprising a protein concentrate or isolate having a reduced amount of one or more of copper, cadmium, lead, and nickel as compared with the plant-derived, protein-enriched material,
wherein the functionalized resin comprises a first resin functionalized with triaminetetraacetic acid chelating groups, and a second resin functionalized with triaminetetraacetate, sodium salt chelating groups;
separating the treated solution from the functionalized resin,
wherein the contacting step is conducted for a period of 1 to 3 hours; and
wherein the contacting step comprises agitating the plant-derived, protein-enriched material solution with the functionalized resin at room temperature, and/or
heating the plant-derived, protein-enriched material solution at a temperature of 50° C. to 70° C.