Method and plant to obtain milk with low sugar content

Details Method and plant to obtain milk with low sugar content Method and plant to obtain milk with low sugar content

A - Human Necessities

23

C

A23C 9/142 (2006.01)

Patent

CA 2701066

Method to obtain milk (LFM) with low sugar content starting from milk (M), comprising at least two steps: a first step in which the milk (M) is subjected to ultrafiltration (UF) so as to produce, at exit, an ultrafiltration permeate (UFP) and an ultrafiltration retentate (UFR); and a second step in which the ultrafiltration permeate (UFP) is subjected to nanofiltration (NF) so as to produce, at exit, a nanofiltration permeate (NFP) and a nanofiltration concentrate (NFC). The nanofiltration permeate (NFP) is continuously recircled directly to ultrafiltration (UF) so as to dilute the ultrafiltration retentate (UFR) and obtain the milk (LFM) from the latter.

La présente invention concerne un procédé d'obtention de lait à faible teneur glucidique à partir de lait, comprenant au moins deux étapes : une première étape au cours de laquelle le lait est soumis à une ultrafiltration de façon à obtenir, en sortie, un perméat d'ultrafiltration et un rétentat d'ultrafiltration ; et une seconde étape au cours de laquelle le perméat d'ultrafiltration est soumis à une nanofiltration de façon à obtenir, en sortie, un perméat de nanofiltration et un concentrat de nanofiltration. Le perméat de nanofiltration est directement remis en circulation de façon continue au niveau de l'étape d'ultrafiltration de façon à diluer le rétentat d'ultrafiltration et d'obtenir le lait à faible teneur glucidique à partir de celui-ci.

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