Societe Des Produits Nestle S.a.

Gerard Terpstra

Peter Erdmann

Gustavo Rocha

The invention concerns a process for the treatment of a sweet whey material containing cGMP (caseinoGlycoMacroPeptide), said process comprising the following steps: &#x2014;Decationising the sweet whey material so as to obtain sweet whey material having a pH value of 1 to 4.5; &#x2014;Treating said sweet whey in a fluidized bed reactor comprising a specific volume of an anionic resin, at a temperature between 10 and 18&#xb0; C., wherein said sweet whey contacts said resin for a sufficient amount of time so that the resin absorbs between 52% and 58% of the cGMP present in the sweet whey; and&#x2014;Recovering a protein material. Advantageously, the protein material is suitable for hypoallergenic infant formulae.

Process for treating sweet whey such as to obtain a protein material suitable for hypoallergenic infant formulae

Process for the treatment of a sweet whey material (SWM) containing cGMP (caseinoGlycoMacroPeptide), comprising the following steps: Decationising the SWM material so as to obtain a sweet whey SW having a pH value of 1 to 4.5; Treating said SW in a fluidized bed reactor comprising a volume of an anionic resin, at 10 to 18&#xb0; C., wherein said SW contacts said resin so that the resin absorbs between 0% and 100% of the cGMP present in the SW; and Recovering a protein material; Wherein the treating is such that the resin absorbs 30 to 45 g/L of the cGMP present in the sweet whey. Method for producing a protein material from a SWM cGMP, said protein material having a targeted tryptophan/threonine (Trp/Thr) ratio, comprising the following steps: &#x2014;Implementing the treating process twice, wherein the resins absorbs P1 of the cGMP, obtaining a first protein material having Trp/Thr1 and wherein the resins absorbs a percentage P2 of the cGMP, obtaining a second protein material having Trp/Thr2; &#x2014;Drafting the linear calibration curve in a graph (cGMP %; Trp/Thr) by positioning (Trp/Thr1; P1) and (Trp/Thr2; P2) and drawing a line through these two plots; &#x2014;Determining the specific ratio of cGMP present in the SW that the resin should absorb with respect to the targeted Trp/Thr by the calibration curve; and &#x2014;Implementing the process of the invention on the SWM wherein the resins absorbs the specific ratio of cGMP, so that to obtain the protein material having the targeted Tp/Thr.

Process for treating a sweet whey material containing cGMP and related method for producing a protein material having a targeted tryptophan/threonine ratio

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Cordast, Switzerland

Gerard Terpstra