Table 5.2.

Protein content in g 100 ml⁻¹ mature milk

	Cows' milk	Human milk
Total proteins	3.5	1.1
Casein	2.8	0.4
Proteins in lactoserum (when protein)	0.6–0.8	0.7
Beta-lactoglobulin	0.37	–
Alpha-lactalbumin	0.18	0.35
Immunoglobulins, total^*	0.05	0.1–0.15
Other proteins	0.13	0.1

Pahud, J.J. Thesis, University of Lausanne (1971).

Reproduced from Montreuil (1971), by kind permission of author and publishers.