The proteins of grasses

Abstract

Prunty''s modification of Sullivan''s colorimetric method was used. The grass proteins all contain cystine (0.3-0.95%). Alfalfa leaf protein is particularly rich in cystine,[long dash]1.2%. The protein-cystine content of the grasses and the pasture plants at various protein levels has been calculated, and it appears that pasturage contains ample cystine for the wool-protein requirement of the sheep which it normally carries.