Patent ID: 9491954
Filing Date: 2016-11-15
CPC Classification: A23C,B01D

Claim Text:
1. A method for reducing the bacterial content of a starting food medium containing lipid droplets, said method comprising the following steps: (a) a step of homogenization applied to said medium so as to obtain a homogenized medium, said step (a) generating, in said homogenized medium, lipid droplets having a diameter such as to allow their subsequent passage through a microfiltration membrane having a predetermined cutoff, (b) a step of microfiltration applied to said homogenized medium obtained in step (a), on a membrane having a cutoff allowing passage, into the microfiltration permeate, of at least a proportion of said lipid droplets while retaining at least a proportion of said bacteria in the microfiltration retentate, and (c) recovering said microfiltration permeate resulting from step (b), said permeate constituting a homogenized food medium whose bacterial content is reduced relative to the starting medium of interest, wherein: said homogenization step (a) comprises at least two successive homogenization operations applied on said medium, said homogenization operations each leading to a reduction in size of said lipid droplets, wherein the successive homogenization operations are conducted at a pressure of 300 bar to 950 bar and said step of microfiltration (b) consists of a step of tangential microfiltration.