Method for purification of lactose

Details Method for purification of lactose Method for purification of lactose

C - Chemistry, Metallurgy

07

H

C07H 1/08 (2006.01) C13B 20/00 (2011.01) C13B 20/02 (2011.01) C13B 20/14 (2011.01) C13B 20/16 (2011.01) A23L 1/304 (2006.01) A23L 2/38 (2006.01) A23L 2/52 (2006.01) A61K 9/20 (2006.01) A61K 47/26 (2006.01) C07H 3/04 (2006.01) C13K 5/00 (2006.01)

Patent

CA 2442181

The present invention relates to improved methods of purification of sugars and in particular to a method of preparing lactose. A low purity lactose source such as whey is subjected to a first demineralisation step involving either ion-exchange or the addition of divalent metal cations, followed by a second demineralisation step where alcohol is added. The invention also relates to lactose produced by this method and produts comprising lactose produced by this method.

L'invention se rapporte à des procédés améliorés de purification de sucres et en particulier à un procédé permettant la préparation de lactose. Ce procédé consiste à soumettre une source de lactose présentant un faible degré de pureté, telle que le petit-lait, à une première étape de déminéralisation comprenant soit un échange d'ions, soit l'addition de cations métalliques divalents, puis à une second étape comprenant l'adjonction d'alcool. L'invention concerne également le lactose préparé au moyen de ce procédé et des produits comprenant du lactose préparés au moyen de ce procédé.

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