| abstract |
[PROBLEMS] To efficiently produce a low sugar and / or oligosaccharide useful as a functional food material, a pharmaceutical raw material, a pharmaceutical composition material, or a cosmetic material with high purity. Furthermore, the present invention provides a method for producing a low sugar and / or oligo excellent in molecular weight control and reproducibility. A polysaccharide selected from the group consisting of agarose, alginic acid, inulin, curdlan, carrageenan, chitin, chitosan, glucomannan, hyaluronic acid, fucoidan and laminaran is heated in an aqueous medium at pH 1-13 at a temperature of 105. A method for producing a low sugar and / or oligosaccharide, which comprises hydrolysis at ˜300 ° C. [Selection] Figure 3 |