Patent No. EP2773222 (titled "Dairy Product And Process") was filed by Fonterra Operative Group on Nov 2, 2012. The application was issued on Dec 24, 2025.
A method for preparing a liquid nutritional composition comprises heat-treating a composition with a pH between 4.3 and 5.1 and containing 2% to 25% by weight of non-hydrolysed whey protein. The whey protein must be provided by an ingredient where at least 55% of the heat-denaturable protein is already in a denatured state. The heat treatment must have an $F_0$-value at least equivalent to 140°C for 5 seconds. The resulting recovered liquid composition must exhibit essentially no observable gelation or aggregation, maintain a viscosity of less than 200 cP (measured at 20°C and a shear rate of 100 $\text{s}^{-1}$), and have a volume-weighted average particle size ($D[4,3]$) of less than 20 µm.

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