초록 ▼

The present invention relates to a method for the production of commercially sterile skimmed milk. After separation, the skimmed milk fraction is treated by microfiltration in one or more steps. The microfiltration gives a permeate flow and a retentate flow, in which all microorganisms of a given si

The present invention relates to a method for the production of commercially sterile skimmed milk. After separation, the skimmed milk fraction is treated by microfiltration in one or more steps. The microfiltration gives a permeate flow and a retentate flow, in which all microorganisms of a given size have effectively been separated from the permeate flow. After the microfiltration, the permeate flow is heat treated at a temperature of 72-134.degree.C. during a requisite period of time. In order to obtain a sterile skimmed milk which is as good as free of destroyed microorganisms, the retentate flow is not employed.

대표청구항 ▼

[ What is claimed is:] [1.]1. Filter apparatus for skimmed milk production comprising a first microfilter and a second microfilter each having an effective pore size of about 0.5 .mu.m or less, said filter apparatus including a supply conduit for supplying a stream of skimmed milk to the first micro

[ What is claimed is:] [1.]1. Filter apparatus for skimmed milk production comprising a first microfilter and a second microfilter each having an effective pore size of about 0.5 .mu.m or less, said filter apparatus including a supply conduit for supplying a stream of skimmed milk to the first microfilter, a first discharge conduit for the milk permeate, and a second discharge conduit for conducting the retentate from the first microfilter to the second microfilter, a third discharge conduit for conducting the permeate from the second microfilter to the first discharge conduit where the respective permeate are mixed together, and, wherein said skimmed milk has a lower concentration of microorganisms by a factor of log 6 than said milk permeate.