Table 2 Casein composition (%) in goat, human and cow milk

Casein fraction	Goat milk	Human milk	Cow milk
αs1-casein	5.6	-	38.0
αs2-casein	19.2	-	12.0
β-casein	54.8	90.5	36.0
κ-casein	20.4	9.5	14.0

Data from Park and Haenlein (2006)