US 11,985,990 B2
Corn protein retention during extraction
Christopher Lawrence Frank, Maple Grove, MN (US); Christopher Steven Huelsnitz, Blaine, MN (US); Erika Lyn McConville, Minneapolis, MN (US); Michael A. Porter, Maple Grove, MN (US); Adam John Steinbach, Saint Paul, MN (US); Hadi Nayef Yehia, Beavercreek, OH (US); and Guo-Hua Zheng, Centerville, OH (US)
Assigned to CARGILL, INCORPORATED, Wayzata, MN (US)
Appl. No. 16/335,604
Filed by CARGILL, INCORPORATED, Wayzata, MN (US)
PCT Filed Oct. 6, 2017, PCT No. PCT/US2017/055498
§ 371(c)(1), (2) Date Mar. 21, 2019,
PCT Pub. No. WO2018/058150, PCT Pub. Date Mar. 29, 2018.
Claims priority of provisional application 62/398,632, filed on Sep. 23, 2016.
Prior Publication US 2019/0297915 A1, Oct. 3, 2019
Int. Cl. A23J 1/12 (2006.01); A23L 5/20 (2016.01)
CPC A23J 1/12 (2013.01) [A23L 5/23 (2016.08); A23V 2002/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of maintaining corn protein yield during extraction of corn material to obtain a corn protein isolate, comprising:
obtaining a destarched corn gluten meal comprising at least 70 wt % corn protein on a dry weight basis; and
treating the destarched corn gluten meal to obtain a desolventized corn protein isolate by a method consisting essentially of
a) carrying out an extraction of non-protein solutes from the destarched corn gluten meal by washing the destarched corn gluten meal to extract the non-protein solutes with an ethanol-water solvent comprising at least 85 wt % ethanol to obtain a corn protein isolate;
b) collecting the corn protein isolate in the form of collected solids from the ethanol-water solvent extraction step a), wherein the collected solids comprises residue ethanol-water solvent; and
c) desolventizing the residue ethanol-water solvent from the collected solids of step b) by drying with heat to provide a desolventized corn protein isolate;
wherein the extraction occurs at temperatures ranging from about 5-50° C.,
wherein the amount of total water present in the ethanol-water solvent extraction step a) is limited such that less than 10% of the corn protein content is removed from the corn material by the ethanol-water solvent during the extraction, and
wherein the amount of water present in the collected solids collected in step b) is limited such that the collected solids comprising the residue ethanol-water solvent has a tack force ranging from −1.000 to 0 at 42.5° C.