Make "bird's nest acid" and "salivary acid" more well-known.

N-acetylneuraminic acid, sometimes known as "Bird's Nest Acid," is a kind of infant formula ingredients salivary acid that has recently been promoted by certain firms in China, added to newborn milk powder, New Resource Foods (NRF), and claimed to be a substitute for bird's nest.

But all of this is ignorant.

1. Each human cell can produce salivary acid, which is used to modify its own glycoproteins or sialic acid glycolipids, and has many physiological functions, such as signal recognition, neurodevelopment, fertilization, tumor migration, neurodegenerative diseases, psychiatric disorders, etc. It also has some pathogenic bacteria and viruses, and the immune system can recognize an important link with some of these pathogens.

2. Salivary acid only exists in the bound condition in nature, such as in bird's nests, milk, cells, etc., as glycoproteins or glycolipids. Salivary acid has a biological role by forming a structural and dha algal oil functional recognition relationship with the receptor. It is mostly attached to the end of the galactose or galactosamine sugar chain. Therefore, "bird's nest acid" or "salivary acid" are not free substances found in nature.

3. Will absorbed free salivary acid? A: It does, but it's soon eliminated by urine. To perform its job, salivary acid must take the form of an oligosaccharide. Salivary acid must first be activated, that is, transformed into CMP-sialic acid, before it can be converted into an oligosaccharide. Salivaryltransferase then moves this CMP-sialic acid to the end of the sugar chain. These take place in the cellular Golgi in the human body.

4. Pyruvic acid and N-acetylaminomannose, which are metabolized to produce lethal quantities of pyruvic acid and mannosamine, are combined structurally to create salivary acid. You can refer to the "Glucosamine" standard; if it is exceeded, the gut flora will shift, and diarrhea will result.

5. The salivary acid glycoprotein in Southeast Asian bird nests is abundant (contains more than 50% sugar), of the water-insoluble mucin type, and has a structure that is primarily 3- or 4-antenna glycoconjugate chains with the majority of N-sugar (glycoconjugate chain is connected to protein peptide chain on asparagine).

6. mostly in the form of salivating oligosaccharides and salivary acid-containing glycoproteins (such lactoferrin and casein glycoconjugate megapeptide). Sialylated oligosaccharides, which are abundant in colostrum and help control newborn intestinal flora and prevent the growth of infections.

Bird's nest acid, also known as sialic acid monomer, is a monosaccharide, does not have a sugar chain structure, has no biological purpose, cannot replace bird's nest, and cannot be added to milk powder. Increased calorie consumption may disrupt the gut flora and promote the development of dangerous germs.