Abstract: A process for producing an .alpha.-lactalbumin-enriched fraction from whey is disclosed. The process involves heating pH-adjusted whey to a temperature sufficient to cause aggregation of .beta.-lactoglobulin molecules, and fractioning the whey using ultrafiltration or microfiltration, the .alpha.-lactalbumin-enriched fraction obtained by the process is useful for making breast milk substitutes and other nutritional compositions.

Abstract: An apparatus for continuously manufacturing fibrous high protein foods comprises an apparatus for supplying a fixed quantity of fibrous structure formable food raw material from a nozzle, said food material being obtained through the steps of curdling cow's milk such as whole milk or skim milk by the addition of a coagulating agent and removing whey from the resulting curds, an apparatus for extending the raw material supplied from the supplying apparatus by applying a fixed tension thereto while delivering the raw material by the aid of free rollers and drive rollers, an apparatus for cooling the extended raw material supplied from the extension apparatus; and an apparatus for cutting the raw material supplied from the cooling apparatus in fixed lengths.

Abstract: This method of hydrolyzing sugar, protein or the like and apparatus are advantageous especially in achieving the effective exhibition of the activity of immobilized enzymes, which method comprises jet-dispersing a constant-temperature aqueous solution containing a substrate such as sugar, protein or the like through an orifice and a net and making the same react in contact with a rotating immobilized enzyme.