Method for producing composition containing sialic acid compound

Abstract

Provided is a method of efficiently and economically producing a sialic acid compound-containing composition, in which a content rate of a sialic acid compound is remarkably high, from natural raw materials containing a sialic acid compound such as milk, whey, or a processed product thereof. The present invention provides a method of producing a sialic acid compound-containing composition, comprising: using, as a raw material, a liquid raw material containing a sialic acid compound or a liquid in which a solid raw material containing the sialic acid compound is dissolved or suspended in water; culturing, in the raw material, a microorganism which cannot assimilate the sialic acid compound and can assimilate carbohydrates other than the sialic acid compound contained in the raw material; allowing the microorganism to assimilate the carbohydrates other than the sialic acid compound contained in the raw material; and removing the microorganism.

Dependencies are inferred from the claim text.