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. 2022 Mar 14;11(3):e202200017. doi: 10.1002/open.202200017

Table 8.

Protein composition of acid and sweet whey. [96]

Protein

Sweet whey[a]

Acid whey[b]

β‐Lactoglobulin (β‐Lg)

46 %

44 %

Peptide fraction

30 %

40 %

α‐Lactalbumin (α‐La)

16 %

11 %

Immunoglobulin (IgG)

5 %

3 %

Others

4 %

3 %

[a] pH 6.5, [b] pH 3.5.