Production of protein isolates:

Details Production of protein isolates: Production of protein isolates:

C - Chemistry, Metallurgy

07

K

C07K 1/14 (2006.01) A23J 1/12 (2006.01) A23J 1/14 (2006.01) A23K 1/14 (2006.01) C07K 1/30 (2006.01) C12S 3/14 (2006.01)

Patent

CA 2725751

Embodiments of the process for isolating proteins from a defatted meal comprise extracting the defatted meal with an acidic solvent at a pH of between 2 and 6 to obtain a mixture of treated meal and a first solution of proteins. The process further comprises extracting the treated meal with an alkaline solvent at a pH of between 9 and 12.5 to obtain a mixture of meal residue and a second solution of proteins. The meal residue is separated from the second solution of proteins, and the proteins are separated from the second solution of proteins to obtain one or more protein products.

La présente invention concerne un procédé permettant d'isoler des protéines à partir de farine dégraissée, consistant à extraire la farine dégraissée avec un solvant acide à un pH compris entre 2 et 6 pour obtenir un mélange de farine traitée et d'une première solution de protéines. Le procédé consiste en outre à extraire la farine traitée, avec un solvant alcalin à un pH compris entre 9 et 12,5 pour obtenir un mélange de résidu de farine et d'une seconde solution de protéines. Le résidu de farine est séparé de la seconde solution de protéines, puis les protéines sont séparées de cette seconde solution de protéines pour obtenir un ou plusieurs produits protéiques.

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