$Process for the preparation of a fraction having a high alpha -lactalbumin content from milk serum or whey and nutritional compositions containing such a fraction$

Process for the preparation of a fraction having a high alpha -lactalbumin content from milk serum or whey and nutritional compositions containing such a fraction

Process for the preparation of a fraction containing a high alpha -lactalbumin content from milk serum, comprising first the heating of the milk serum at an adjusted pH and next or simultaneously with the heating, the fractionation of the milk serum with an ultrafiltration membrane having a molecula...

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Bibliographische Detailangaben
Hauptverfasser:	MITSUHASHI TAMAMI, SHIMATANI MASAHARU, UCHIDA YUKIO, KOUTAKE MASANOBU
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY DAIRY PRODUCTS, e.g. MILK, BUTTER, CHEESE FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES MAKING THEREOF METALLURGY MILK OR CHEESE SUBSTITUTES ORGANIC CHEMISTRY PEPTIDES PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PROTEIN COMPOSITIONS FOR FOODSTUFFS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES WORKING-UP PROTEINS FOR FOODSTUFFS
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Beschreibung
Zusammenfassung:	Process for the preparation of a fraction containing a high alpha -lactalbumin content from milk serum, comprising first the heating of the milk serum at an adjusted pH and next or simultaneously with the heating, the fractionation of the milk serum with an ultrafiltration membrane having a molecular weight cut-off of 50,000 Da or a microfiltration membrane having a pore size of 0.01 - 0.5 mu m, which permit the alpha -lactalbumin to cross to the permeate side for a fractionation against beta -lactoglobulin, and the production of a fraction having a high alpha -lactalbumin content. Substitute for mother's milk and nutritional compositions comprising such a fraction. Procédé pour la préparation d'une fraction ayant une teneur élevée en alpha-lactoalbumine à partir de lactosérum, comprenant d'abord le chauffage de lactosérum à pH ajusté, et ensuite ou simultanément avec le chauffage, le fractionnement du lactosérum avec une membrane d'ultrafiltration ayant une masse moléculaire de coupure de 50 000 Da ou une membrane de microfiltration ayant une dimension de pores de 0,01 - 0,5 mum, ce qui permet à l'alpha-lactoalbumine de traverser vers le côté perméat pour un fractionnement contre de la beta-lactoglobuline, et l'obtention d'une fraction ayant une teneur élevée en alpha-lactoalbumine. Substitut du lait maternel et compositions nutritionnelles comprenant une telle fraction.