Tryptophan

By this point, thirteen different amino acids had been isolated. Tryptophan is an amino acid isolated from protein molecules broken down by the digestive enzyme trypsin. It plays a significant role in dietetics and food chemistry.
 Frederick Gowland Hopkins England 1900 Tryptophan

By this point, thirteen different amino acids had been isolated. Tryptophan is an amino acid isolated from protein molecules broken down by the digestive enzyme trypsin. It plays a significant role in dietetics and food chemistry.