The Amino Acid Composition of the Marine Brown Alga Macrocystis pyrifera from Baja California, Mexico.

Abstract
The amino acid composition of the protein hydrolyzate of the whole giant kelp M. pyrifera was determined. As a percentage of the dry weight of the seaweed, corrected for 12.8% moisture, the amino acids found were: alanine 2.13%, ornithine 2.11%, glutamic acid 1.98%, aspartic acid 1.45%, valine 1.06%, leucine 0.89%, glycine 0.76%, phenylalanine 0.63%, threonine 0.63%, lysine 0.60%, isoleucine 0.55%, serine 0.51%, arginine 0.36%, histidine 0.21% and methionine 0.19%. Proline and cystine were found in trace amounts.