A method for preparing a modified whey protein concentrate (WPC) or whey protein isolate (WPI) is described. It involves (a) providing an aqueous WPC or WPI solution having a protein concentration of 15-50% (w/v), at a pH of 4.7-8.5; (b) heat treating the solution to more than 50 DEG C., for a time that allows protein denaturation to occur; the heat treating comprising heating the solution while under conditions of turbulent flow. At the end of the heat treatment, the heat treated material may be promptly transferred to a drier or to be mixed with other ingredients. The heat-treated WPC or WPI is not subjected to a mechanical shear process prior to the transfer other than where liquid is converted into droplets to facilitate drying. The modified WPC is useful in the manufacture of food and drinks where a high protein content is desired without undesirable changes in texture.

A method for concentrating a particular component in powder by performing a mechanical dry processing on powder formed by granulating a solution containing two or more components, producing chips in a fine-powder form by chipping away at particle surfaces of the powder where a larger amount of the particular component is contained than particle interior portions of the powder, classifying the powder into fine powder containing the chips and coarse powder containing particles whose surfaces have been chipped away, and collecting the fine powder containing the particular component.

A synthetic acid composition for replacement of hydrochloric acid in industrial activities requiring large amounts of hydrochloric acid, said composition comprising: urea and hydrogen chloride in a molar ratio of not less than 0.1:1; a metal iodide or iodate; an alcohol or derivative thereof. Optionally, formic acid or a derivative thereof; propylene glycol or a derivative thereof, ethylene glycol glycerol or a mixture thereof; cinnamaldehyde or a derivative thereof; and a phosphonic acid derivative can be added to the composition.

A synthetic acid composition for replacement of hydrochloric acid in industrial activities requiring large amounts of hydrochloric acid, said composition comprising: urea and hydrogen chloride in a molar ratio of not less than 0.1:1; a metal iodide or iodate; an alcohol or derivative thereof. Optionally, formic acid or a derivative thereof; propylene glycol or a derivative thereof, ethylene glycol glycerol or a mixture thereof; cinnamaldehyde or a derivative thereof; and a phosphonic acid derivative can be added to the composition.

Novel methods for producing whey protein concentrates with favorable properties are provided. The methods include using chitosan selective precipitation whey pre-treatment, and microfiltration using polymeric membranes. The products obtained using these methods include WPC80 with low fat content, high clarity, low browning potential during storage, and having low levels of volatiles. Compositions and foaming agents obtained using the methods of the present invention are also provided.

Novel methods for producing whey protein concentrates with favorable properties are provided. The methods include using chitosan selective precipitation whey pre-treatment, and microfiltration using polymeric membranes. The products obtained using these methods include WPC80 with low fat content, high clarity, low browning potential during storage, and having low levels of volatiles. Compositions and foaming agents obtained using the methods of the present invention are also provided.

The present invention relates to whey protein micelles for use in the treatment and/or prevention of a disorder linked to an increase in plasma postprandial insulin and/or plasma postprandial glucagon concentration in a subject. The invention relates also to a non-therapeutic use of whey protein micelles to decrease plasma postprandial insulin and/or glucagon concentration in healthy subjects.

The present invention relates to whey protein micelles for use in the treatment and/or prevention of a disorder linked to an increase in plasma postprandial insulin and/or plasma postprandial glucagon concentration in a subject. The invention relates also to a non-therapeutic use of whey protein micelles to decrease plasma postprandial insulin and/or glucagon concentration in healthy subjects.

Methods are described for treating a whey protein mixture to increase a relative concentration of -lactalbumin protein in the mixture. The methods may include the step of adjusting a temperature of the whey protein mixture to about 10 C. or less, and adjusting the pH of the mixture to greater than 7. The may further include adding a protease enzyme to the whey protein mixture that selectively hydrolyzes -lactoglobulin protein in the mixture. The activity of the protease enzyme in the hydrolyzed whey protein mixture may be terminated before a substantial portion of the -lactalbumin protein has been hydrolyzed by the enzyme. In some instances, the whey protein mixture may also include glycomacropeptides that are selectively hydrolyzed with the -lactoglobulin protein. The -lactoglobulin and glycomacropeptide hydrolysates may be separated to produce an enhanced -lactalbumin protein composition for infant formula, among other products.

The present invention relates to whey protein micelles for use in the treatment and/or prevention of a condition linked to a reduced concentration of plasma amino acids in a patient. A further aspect of the invention is a meal replacement comprising whey protein micelles.