Glycine
Glycine is the amino acid that has a single hydrogen atom as its side chain. It is the simplest possible amino acid. Glycine is a colorless, sweet-tasting crystalline solid. It is the only achiral proteinogenic amino acid. It can fit into hydrophilic or hydrophobic environments, due to its minimal side chain of only one hydrogen atom. The acyl radical is glycyl.
Animal and human foods applications
USP glycine has a wide variety of uses, including as an additive in pet food and animal feed, in foods and pharmaceuticals as a sweetener/taste enhancer, or as a component of food supplements and protein drinks.
Two glycine molecules in a dipeptide form (Diglycinate) are sometimes used as a way to enhance the absorption of mineral supplementation since, only when bound to a dipeptide, can be absorbed through a different set of transporters.
Cosmetics and miscellaneous applications
Glycine serves as a buffering agent in antacids, analgesics, antiperspirants, cosmetics, and toiletries.
A variety of industrial and chemical processes use glycine or its derivatives, such as the production of fertilizers and metal complexing agents
Glycine foods application requirements in accordance with standard
| Foods | Maximum usage(g/kg) |
| Prefabricated meat products | 3.0 |
| Cooked meat products | 3.0 |
| condiment | 1.0 |
| Fruit and vegetable juice (pulp) drinks | 1.0 |
| Plant protein drink | 1.0 |
