DL Tryptophan CAS 54-12-6

DL Tryptophan, one of the essential amino acids for the human body. Non-polar amino acids, with an isoelectric point of 5.98, have low solubility in water, a bitter taste, and have maximum light absorption at a wavelength of approximately 280nm. It is the first essential amino acid to be confirmed. In both humans and animals, apart from being a component of proteins and maintaining the balance of nitrogen in the body, its metabolite - serotonin - not only has a constricting effect on peripheral blood vessels, but also has a controlling effect on the nervous system. Another product of metabolism is vitamin B5. In plants, through reactions such as deamination and decarboxylation, the plant growth hormone - indoleacetic acid can be formed.

DL Tryptophan belongs to aromatic amino acids and is the amino acid with the least amino acid content but widely present among various proteins. DL-Tryptophan can be converted into niacin in the body. Therefore, when niacin is lacking in the feed, the demand for DL-Tryptophan increases accordingly. The production routes of DL-Tryptophan include chemical synthesis, fermentation and natural protein hydrolysis. The artificially synthesized product is DL-mixed DL-Tryptophan, and for pigs, its bioavailability is 80% of that of L-tryptophan. Dl-tryptophan appears as a white to light yellow powder, odorless or slightly off-flavors, and is insoluble in water. DL-Tryptophan can enhance the disease resistance and stress resistance of newborn piglets, thereby increasing the survival rate of piglets. It is generally used in the artificial milk of piglets, with an addition amount of 0.02% to 0.05%. Due to its high price, DL-Tryptophan additives are generally not used in growing and fattening pigs and breeding pigs.