8. Immunological aspects
There is extensive immunological cross-reaction
of cow and goat milk proteins (Saperstein, 1974).
The non-allergenic properties of goat milk are due to
the fact that most of the milk proteins are unable to
pass through the walls of the digestive tract in their
original, undigested, allergenic states (Saini and Gill,
1991). The immunological behaviour of the p-Lg of
goat and sheep milk suggests that the differences in
amino acid composition do not affect the antigenitally
active sites of these molecules (Johke et al.,
1964; Lyster et al., 1966; Bell et al., 1968).