Method of processing a proteinous material, a product so...

A - Human Necessities – 23 – J

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Details

A23J 1/20 (2006.01) A23C 7/04 (2006.01) A23C 9/14 (2006.01) A23C 9/142 (2006.01) A23C 9/148 (2006.01) A23C 9/20 (2006.01) A23C 21/04 (2006.01) A23L 1/29 (2006.01)

Patent

CA 2345701

The invention relates to a method of removing bovine insulin from a liquid fat- free proteinous material originating from cow's milk, wherein the liquid fat-free proteinous material originating from cow's milk, the material having a pH of 2 to 8, at a temperature below 65 °C, is contacted with an adsorption resin, whereby the weight ratio of the proteinous material to be treated to the adsorption resin is at most 100:1, optionally combining with said resin treatment at least one ultra and dia-filtration treatment of the proteinous material, and, if necessary, the liquid material so obtained is concentrated into a protein concentrate and optionally dried to powder. The invention further relates to a substantially bovine insulin-free proteinous material so obtained, and to its use as the protein part or raw material in the preparation of substantially bovine insulin-free infant formulae or other special nutritive preparations or consumption milk, other milk drinks or other milk preparations, or as a raw material therein.

L'invention concerne un procédé qui permet d'éliminer l'insuline bovine d'un matériau protéique liquide ne contenant pas de lipides et provenant du lait de vache. Selon le procédé, on met en contact ledit matériau, ayant un pH compris entre 2 et 8, à une température inférieure à 65 DEG C, avec une résine d'adsorption, le rapport en poids du matériau protéique à traiter sur la résine d'adsorption étant égal ou inférieur à 100/1; éventuellement, on associe audit traitement par la résine au moins une ultrafiltration et une diafiltration; si nécessaire, on concentre le matériau liquide ainsi obtenu pour obtenir un concentré protéique et on le sèche pour obtenir une poudre. L'invention concerne également le matériau protéique ainsi obtenu, exempt d'insuline et d'origine principalement bovine, ainsi que son utilisation comme partie protéique ou comme matériau brut pour la préparation de formules pour nourrissons exemptes d'insuline et d'origine principalement bovine, d'autres préparations nutritives spéciales, de lait à boire et d'autres boissons lactées, ou comme matériau brut pour lesdites préparations.

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