Phospholipid concentration methods involve use of a dairy composition, such as buttermilk or butter serum, as a starting material. The dairy composition is subjected to a first ultrafiltration, yielding a first permeate and a first retentate. The first retentate is treated with carbon dioxide and subjected to microfiltration, yielding a second permeate and a second retentate. The second retentate is treated with carbon dioxide and subjected to a second ultrafiltration, yielding a third permeate and a third retentate. The third retentate includes at least 30 wt % phospholipids.

A method for the processing a dairy protein composition in order to obtain a lactose-rich liquid composition, including an ultrafiltration step (ii) in order to obtain an ultrafiltration permeate and an ultrafiltration retentate; followed by a processing step (iv) on ion-exchange resins, including at least one pass including percolation over a cationic resin followed by percolation over an anionic resin.

Systems and methods for filtering dairy may filter milk with a wide-pore filter to produce a wide-pore retentate and a wide-pore permeate, wherein the wide-pore retentate may comprise casein and beta-lactoglobulin. The systems and methods may further ultra-filter the wide-pore permeate to produce an ultra-filtered retentate and an ultra-filtered permeate, wherein the ultra-filtered retentate comprises alpha-lactalbumin. The systems and methods may further nano-filter the ultra-filtered permeate to produce a nano-filtered retentate and a nano-filtered permeate, wherein the nano-filtered retentate comprises lactose. The systems and methods may further perform reverse osmosis (RO) on the nano-filtered permeate to produce a reverse osmosis retentate and a reverse osmosis permeate.

The invention relates to the use of milk derived, denatured retentate in the preparation of milk-based compositions, which may be aerated or non-aerated, comprise a skimmed mild source, and/or have less than 0.5% w/w fat. The milk derived, denatured retentate allows the formation of microbubbles in an aerated skimmed milk composition, and thus retains certain desirable sensory perception characteristics such as a good mouthfeel and perceived thickness.

A process for preparing lactose-free skimmed, partially skimmed and whole milk is proposed in which: (1) the milk is pasteurized and skimmed; (2) the skimmed milk is hydrolyzed enzymatically by a lactase; (3) the hydrolyzed skimmed milk is microfiltrated to obtain an ultrafiltration retentate (RMF) and a microfiltration permeate (PMF); (4) the PMF is ultrafiltrated and an ultrafiltration retentate (RUF) and an ultrafiltration permeate (PUF) are obtained, 5) the PUF is nanofiltrated and a first nanofiltration retentate (RNF1) and a first nanofiltration permeate (PNF1) are obtained, 6) the PNF1 is nanofiltrated to obtain a second nanofiltration retentate (RNF2) and a second nanofiltration permeate (PNF2), and 7) final step: lactose-free milk is obtained by mixing one or more of the fractions deriving from one or more of the previous steps.

Disclosed are processes for reducing the cooked flavor, sulfur odor, and brown color of milk products that have been subjected to ultra-high temperature (UHT) sterilization via the UHT sterilization of certain milk fractions separately.

The disclosure provides a simple and effective methods for sterilization of milk without degradation or loss of biologically active agents in the milk and the products produced by such methods.

Disclosed is method of removing spores from raw goat milk. Thereby raw goat milk is subjected to decreaming in a separator. Goat cream is thereupon subjected to mild heat treatment. Goat skim milk may be subjected to microfiltration. Retentate therefrom is subjected to sterilization. The process results in a goat milk that is low in bacteria and spores. Disclosed is a non-sterilized milk, the use of said milk in cheese production, a method of making cheese and the use of the purified goat milk for obtaining whey and casein.

The invention concerns native whey protein for use in the treatment and/or prevention of intestinal infection or inflammation, in particular necrotizing enterocolitis. The inventors found that native whey protein provides a beneficial effect on intestinal infection or inflammation.

A low-bacteria milk powder with a WPNI of at least 2 is suggested, obtainable by (a) providing a milk component; (b) optionally, separating the cream from the milk component; (c) subjecting the milk component from which the cream had been optionally separated to microfiltration, obtaining a low-bacteria permeate P1 and a bacteria-contaminated retentate R1; (d) mixing the permeate with a liquid lipid phase and a solid active agent phase; (e) optionally, subjecting the mixture obtained in step (d) to a temperature treatment; and (f) processing the mixture of step (d) or (e) that had optionally been temperature-treated, obtaining a dry powder.