N-acetylneuraminic acid guide to efficacy and application
What is N-acetylneuraminic acid? N-acetylneuraminic acid, also known as sialic acid (SA) , bird's nest acid, is a naturally occurring amino sugar, which was originally isolated from bovine submandibular adenomucin, hence the name sialic acid. Sialic acid is a nine-carbon monosaccharide derivative containing an amino group, and is a general term for all N- or O-derivatives of neuraminic acid or keto-deoxynonyluronic acid (KDN). Sialic acid usually exists in the form of oligosaccharides, glycolipids or glycoproteins, mainly in the form of short-chain residues at the ends of glycoproteins and glycolipids. Acetylneuraminic acid main source The main sources of sialic acid are breast milk and dairy products. Including human milk, cow milk, goat milk and yogurt, the content of breast milk colostrum is the highest, which can reach more than 1.5 g / liter, and the average content of sialic acid in skim milk powder is 172 mg / 100 g. Another great source of sialic acid is egg foods. ...