US 12,245,613 B2
Method for preparing protein-fibre concentrates from plant material
Piotr Wnukowski, Delft (NL); Magdalena Kozlowska, Lodz (PL); Lukasz Stanczyk, Lodz (PL); and Danuta Alina Rachwal, Ozorkow (PL)
Assigned to NapiFeryn BioTech sp.zo.o, Lodz (PL)
Appl. No. 17/260,240
Filed by NapiFeryn BioTech sp. z o.o, Lodz (PL)
PCT Filed Jul. 16, 2019, PCT No. PCT/EP2019/069113
§ 371(c)(1), (2) Date Jan. 14, 2021,
PCT Pub. No. WO2020/016222, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. 2021320 (NL), filed on Jul. 17, 2018.
Prior Publication US 2021/0298323 A1, Sep. 30, 2021
Int. Cl. A23J 1/14 (2006.01)
CPC A23J 1/142 (2013.01) 21 Claims
OG exemplary drawing
 
1. A process for the preparation of a protein-fibre concentrate from plant material, wherein the plant material is selected from oilseeds, and wherein said plant material comprises between 10 and 50 wt % on dry weight basis of proteins and at least 5 wt %, on dry weight basis of fats, oils and lipids, said process comprising the steps of:
a) crushing or comminuting the plant material to produce a solid cake;
b) extracting the solid cake obtained in step a) using a first solvent comprising at least 90 wt % of water, based on the total weight of the first solvent, to obtain a mixture of a first solid fraction and a first liquid fraction;
c) separating the first liquid fraction from the first solid fraction;
d) adding a second solvent to the first solid fraction obtained in step c), wherein the second solvent comprises at least 60 wt % of a alcohol having 1 to 5 carbon atoms which is miscible with water at room temperature, based on the total weight of the second solvent;
e) separating the mixture obtained in step d) into a second liquid fraction and a second solid fraction using a technique chosen from the group consisting of filtration, sedimentation, centrifugation and combinations thereof;
f) adding a third solvent to the second solid fraction obtained in step e), said third solvent comprising at least 90 wt % of an apolar and lipophilic organic ester having up to 5 carbon atoms, based on the total weight of the third solvent, wherein the apolar and lipophilic organic ester having up to 5 carbon atoms is at least partially miscible with the first solvent and fully miscible with the second solvent at room temperature, wherein the amount of the third solvent is chosen such that the overall liquid phase does not separate into distinct liquid phases;
g) separating the mixture obtained in step f) into a third liquid fraction and a third solid fraction using a technique chosen from the group consisting of filtration, sedimentation, centrifugation and combinations thereof;
h) subjecting the third solid fraction obtained in step g) to a technique chosen from the group consisting of vacuum drying, spray drying, superheated steam drying and/or combinations thereof to obtain a protein-fibre concentrate wherein the total content of protein and indigenous fibre is at least 30 wt %, based on total dry weight of the concentrate,
wherein the process is performed without using organic or mineral solvents having 6 or more carbon atoms.