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AssigneeMegmilk Snow Brand Co., Ltd.
InventorsJunichi HIGUCHI, Toshiyuki YAMAGUCHI, Noriko NONOYAMA, Hirofumi FUKUDOME, Fumihiko SAKAI
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Provided is an N-acetyllactosamine-containing composition production method that achieves a higher rate of conversion from N-acetylglucosamine to N-acetyllactosamine as compared to conventional methods and that is simple but has no effect on the flavor. The production method provided is a method in which N-acetyllactosamine is produced using an enzyme reaction through the action of β-galactosidase on lactose and N-acetylglucosamine, wherein the lactose concentration before the action of β-galactosidase is 1.1 times or more the N-acetylglucosamine concentration in amount-of-substance ratio. An N-acetyllactosamine-containing composition produced by the production method is also provided, wherein the amount-of-substance ratio of N-acetyllactosamine (LacNAc) to N-acetylglucosamine (GlcNAc) (LacNAc/GlcNAc) contained in the composition is 0.26 or more.
A method for producing N-acetyllactosamine, comprising bringing a solution containing lactose and N-acetylglucosamine into contact with β-galactosidase, wherein the lactose concentration in the solution before contact with β-galactosidase is 1.1 times or more the N-acetylglucosamine concentration in amount-of-substance ratio.
A method for producing N-acetyllactosamine, comprising bringing a solution containing lactose and N-acetylglucosamine into contact with β-galactosidase, wherein the β-galactosidase is one derived from genus Bifidobacterium.
A composition that contains N-acetyllactosamine produced by bringing a solution containing lactose and N-acetylglucosamine into contact with only β-galactosidase as an enzyme, wherein the amount-of-substance ratio of N-acetyllactosamine (LacNAc) to N-acetylglucosamine (GlcNAc) (LacNAc/GlcNAc) is 0.26 or more.
Dependencies are inferred from the claim text.