Abstract
By modifying a previously reported technique for the phenotyping of [beta]- caseins using thin starch gel electrophoresis in acid media, the B-lactoglobulins were simultaneously clearly resolved. These migrated to a distance approximately 5 cm ahead of the [beta]-casein band on the gel by the end of the gel run. This made it easier to read the B-lactoglobulin band compared to previous methods. The clarity of the [beta]-casein band was also retained by the method.