Dihydroxyphenylalanine in Rat Food Containing Wheat and Oats

Science  18 Feb 1972:
Vol. 175, Issue 4023, pp. 761-762
DOI: 10.1126/science.175.4023.761


Dopa has been identified in rat food by three different fluorimetric assays and paper chromatography. Incubation of the rat food with proteolytic enzymes dramatically increased the measurable free dopa. Analysis of samples of six individual protein-containing constituents of rat food revealed that both wheat and oats contain dopa.