A - Human Necessities – 23 – J
Patent
A - Human Necessities
23
J
99/49, 530/15.1
A23J 1/14 (2006.01)
Patent
CA 1044071
TITLE OF THE INVENTION A PROCESS FOR OBTAINING PROTEIN ISOLATES OF VEGETABLE ORIGIN ABSTRACT OF THE DISCLOSURE An easily extrudable, purified and concentrated protein can be obtained from a vegetable source, such as sunflower and colza, by subjecting an alkaline solution of the protein obtained from said source to ultrafiltration through a semipermeable membrane having a pore size of 0.1 to 30 mµ to form a retentate containing an amount of nitrogenous matter (N x 6.25) in the range of 3 to 12% by weight of the retentate, and adding a wash liquid to said solution while continuing said ultrafiltration, such that when volume of the permeate is equal to said added volume, the concentration of nitrogenous matter (N x 6.25) in the retentate will be 70 to 85% by weight of the dry matter of said retentate. Thus-obtained retentate is further ultrafiltrated using the said semipermeable membrane, and thereafter said purified and concentrated protein is recovered. The above process does not require such a large amount of solvents that is indispensable in conventional protein recovery processes, thereby substantially solving potential environmental pollution problem due to such enormous amount of solvents.
209195
Chopin Alain
Chopin Marie-Christine
Culioli Joseph
Maubois Jean-Louis J.
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