Food or edible material: processes – compositions – and products – Processes – Separating a starting material into plural different...
Reexamination Certificate
2006-11-28
2006-11-28
Saucier, Sandra E. (Department: 1651)
Food or edible material: processes, compositions, and products
Processes
Separating a starting material into plural different...
C426S034000, C426S583000, C530S399000, C530S414000, C530S418000, C930S120000
Reexamination Certificate
active
07141262
ABSTRACT:
The invention concerns a method for obtaining a highly enriched TGF-beta protein fraction in activated form, from a liquid solution rich in proteins said to be soluble in the aqueous phase of milk and/or of whey, said method comprising the following steps; a) adjusting soluble proteins purified at a concentration between 5 and 30 g/liter of solution; b) precipitating part of the whey proteins by acidic treatment of the solution thus obtained to a pH ranging between 4 and 5.5 and at a temperature ranging between 55° C. and 68° C.; c) carrying out a microfiltration of the treated solution by diafiltration, so as to obtain respectively a microfiltration retentate and a microfiltrate; d) recuperating the microfiltration retentate containing the protein fraction highly enriched in TGF-beta; e) drying the microfiltration retentate which has been subjected to diafiltration to obtain a powder highly enriched in TGF-beta.
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Bourtourault Michel
Fauguant Jacques
Jouan Pierre
Maubois Jean-Louis
Barnhart Lora E
Carter Schnedler & Monteith
Pierre Jouan Biotechnologies S.A.
Saucier Sandra E.
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