Method for treatment of lacto-N-biose-containing solution

摘要

The present invention relates to a method of treating a liquid composition containing lacto-N-biose, the method including: preparing a liquid composition containing lacto-N-biose having a pH at 25° C. of not less than 2.0 and not more than 5.5, and heating the liquid composition at a temperature of 65° C. or higher. The present invention can provide a treatment method that enables thermal decomposition of lacto-N-biose to be suppressed when a liquid composition containing lacto-N-biose is heated at a temperature of 65° C. or higher, a liquid preparation containing lacto-N-biose that is treated using the treatment method, a dried product produced from such a liquid preparation containing lacto-N-biose, and a method of producing a product containing lacto-N-biose.

主权项

1. A method of producing a heated liquid preparation containing lacto-N-biose, the method comprising:
preparing a liquid composition containing lacto-N-biose by
(A) adding an acid to an aqueous solvent to adjust the pH at 25° C. to not less than 2.0 and not more than 5.0, followed by dissolving lacto-N-biose in the solvent to prepare the liquid composition, or(B) dissolving lacto-N-biose in an aqueous solvent, followed by adding an acid to the solvent in which lacto-N-biose has been dissolved to adjust the pH at 25° C. to not less than 2.0 and not more than 5.0 to prepare the liquid composition; and heating the liquid composition at a temperature of not less than 65° C. and not more than 140° C.