Method of deflavoring soy-derived materials using...

A - Human Necessities – 23 – J

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A23J 3/16 (2006.01) B01D 61/44 (2006.01)

Patent

CA 2579632

Soy derived materials such as soy milk, soy concentrates, and soy protein isolates, are deflavored by adjusting the pH of an aqueous composition of such soy derived materials using membrane electrodialysis to a pH of about 9 to about 12 to solubilize the soy proteins and to release the flavoring compounds and thereafter passing the pH-adjusted composition to an ultrafiltration membrane having a molecular weight cutoff up to about 50,000 Daltons under conditions at which the flavoring compounds pass through the membrane, leaving the retained soy material with improved flavor.

La présente invention a trait à des matières dérivées de soja telles que le lait de soja, des concentrés de soja, et des isolats de protéines de soja, désaromatisées par l'ajustement du pH d'une composition aqueuse à base de telles matières dérivées de soja au moyen d'une électrodialyse à membrane à un pH d'environ 9 à environ 12 pour la solubilisation des protéines de soja et la libération des composés aromatisants suivi du passage de la composition à pH ajusté dans une membrane d'ultrafiltration ayant un seuil de rétention de molécules allant jusqu'à 50000 daltons dans des conditions auxquelles les composés aromatisants passent à travers la membrane, laissant la matière à base de soja retenue avec un arôme amélioré.

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