THE TYROSINE AND TRYPTOPHANE CONTENTS OF SOME LEGUME SEED PROTEINS.

Clowes, G. J.

The tyrosine and tryptophane contents of the whole proteins from the embryos of unripe seeds of Lupinus anguslifolius, embryos of ripe seeds of L. pilosus sub. sp. Cosentini, and the ripe and unripe seeds of Pisum sativum var. Greenfcast, have been estimated. The results are in conformity with those obtained by Lugg and Weller (1941), and Lugg and Clowes (1945) for the tyrosine and tryptophane contents of the whole proteins of the seeds of other legumes, in that they reveal moderate tyrosine and rather low tryptophane contents. They therefore further substantiate the suggestion, made by Lugg and Clowes (1945), that the tryptophane contents of the whole proteins of the seeds of legumes may be rather low. The significance of the results in the field of nutrition has been considered.

TYROSINE; PROTEINS; SEEDS; LUPINUS angustifolius; LEGUMES

Australian Journal of Experimental Biology & Medical Science, 1945, Vol 23, Issue 3, p227

0004-945X

Academic Journal

10.1038/icb.1945.35