| abstract |
(57) [Summary] [Object] To provide a novel N-acetylneuraminic acid-linked oligosaccharide. [Structure] An N-acetylneuraminic acid-bonded oligosaccharide represented by the general formula (Gal) n-Neu5Ac and a drug, a food / beverage product, and a feed containing the same, which have enhanced mineral absorption. (In the formula, Gal is galactose and Neu5Ac is N-. Each represents acetylneuraminic acid, and n represents an integer of 1 to 2. ) This N-acetylneuraminic acid-bonded oligosaccharide can be produced by allowing β-galactosidase to act on lactose and N-acetylneuraminic acid to cause a galactose transfer reaction. [Effects] Oral administration can enhance mineral absorption, and is useful for prevention or treatment of osteoporosis and other bone diseases. |