Abstract: The invention relates to a filter assembly for membrane filtration—of liquids, and more in particular a spiral wound filter assembly with improved filtration performance. Provided is a spiral wound filter assembly comprising a permeate channel (5; 305, 325) for transporting permeate to the permeate outlet (12), said permeate channel being provided with at least one flow restriction (13; 113, 120; 213; 333) in form of check or control valves or ridges, for increasing the pressure in at least part of the permeate channel. The invention further relates to an apparatus comprising such a filter assembly, and to methods for using this apparatus.

Abstract: The present invention is directed to a method to produce a dairy based food composition with low LPS comprising the steps (a) Providing a milk with a storage time of less than 264 hours and either (b1) Treating the milk with a microfilter of poresize of from 0.01-2 ?m such that at least a casein rich fraction and a serum protein rich fraction is obtained, or (b2) Treating the milk such that at least 98 wt % of the Gram negative bacteria is removed, and heating the milk wherein at least 98wt % of the Gram negative bacteria is removed to 60-90° C. The methods of the present invention are very suitable to provide a dairy based food composition wherein less than 5100 EU LPS per liter ready to use food composition is present or wherein less than 39 EU LPS per gram dry product is present.

Abstract: The present invention relates to method to produce a dairy based food composition comprising protein comprising the steps (a) Treating the milk such that at least 98% of the pathogens is removed, (b) Treating the milk with a microfilter of a poresize of 0.01-2 micron such that at least a casein rich fraction and a serum protein rich fraction is obtained, wherein the milk is subjected to a heating treatment before or after the microfiltration and wherein during the production the milk and products obtained from the milk are not subjected to a heat treatment at a temperature above 90° C., and wherein the serum protein rich fraction and/or the casein rich fraction is processed into a food product. The invention also is directed to products made by the process.

Abstract: Described is a method of of providing milk proteins from raw animal milk. The method comprises subjecting the milk to two microfiltration steps. One is warm microfiltration at 25° C.-65° C. and the other is cold microfiltration at 0° C.-25° C. The steps can be conducted in either order, with a retentate obtained in the first step being subjected to the second step. The resulting milk serum proteins and ?-casein are suitable for use in infant or toddler formula.

Abstract: The invention relates to a filter assembly for membrane filtration—of liquids, and more in particular a spiral wound filter assembly with improved filtration performance. Provided is a spiral wound filter assembly comprising a permeate channel (5; 305, 325) for transporting permeate to the permeate outlet (12), said permeate channel being provided with at least one flow restriction (13; 113, 120; 213; 333) in form of check or control valves or ridges, for increasing the pressure in at least part of the permeate channel. The invention further relates to an apparatus comprising such a filter assembly, and to methods for using this apparatus.

Abstract: An apparatus provided with a micro or ultrafiltration filter, wherein the filter is provided with a filter housing having a retentate side and a permeate side, wherein the retentate side and the permeate side are separated from each other by filter material, wherein a fluid supply pipe is connected to the retentate side and a permeate discharge pipe to the permeate side, wherein, in the permeate discharge pipe, a shut-off valve operable at a high frequency is provided and wherein means are connected to the permeate side for increasing the pressure in the permeate side when the said shut-off valve is closed to a value which is higher than the pressure on the retentate side.