Abstract
The manometric estimation of 1( [long dash])-histidine, l( + Mysine, l( [long dash])-tyrosine, l( -f- )-glutamic acid, and 1( + )-ornithine in soln. and in protein hydrolysates by the use of prepns. of the specific amino-acid decarboxylases is descr. Results are in good agreement with those obtained by other methods.