the ratio of the histidine dipeptides anserine and carnosine which are present in skeletal muscle , are so different between sheep , cattle , horse and kangaroo that detection of adulteration can be rapidly achieved by chromatography on a partisil-10 scx column with 0.2 m lithium formate , ph 2.9 .
C0012512
dipeptides
C0007267
carnosine