CAPILLARY ELECTROPHORETIC ANALYSIS OF GENETIC-VARIANTS OF MILK-PROTEINS FROM DIFFERENT SPECIES

Polymorphism of bovine, ovine and caprine milk proteins was studied by CE. Identification of some rare bovine variants was carried out by is oelectric focussing (IEF) using PhastSystem. Genetic variants A and D of bovine alpha(s2)-casein, beta-casein variants A(1), A(2), A(3), B a nd C and alpha(s2)-casein variants B and C were determined by CE. In a ddition, the different casein fractions including some genetic variant s of ovine and caprine milk were identified by CE. In order to carry o ut this identification, collected fractions from a cation-exchange FPL C separation were injected by CE.