Disclaimer: The information contained herein should NOT be used as a substitute for the advice of an appropriately qualified and licensed physician or other health care provider. The tool is not a substitute for the care provided… (more)
“Methionine, threonine, phenylalanine, and tryptophane when singly eliminated from the complete amino acid mixture do effect a sharp rise in urinary nitrogen.”
The Journal of experimental medicine • 1947 | View Paper
“Supplementation of this culture medium with organic nitrogen sources increased lipase production by 461.3% using tryptone and by 419.4% using yeast extract.”
“The cultural techniques that involved the application of nitrogen led to higher levels of tryptophan at the harvest day when compared to other cultural techniques.”