| abstract |
The invention relates to a composition comprising a β-glucan which comprises 15 to 50% by weight of a β-1,3-1,4-glucan. The surface proportion of a molecular weight region of between 1000 and 200000 in terms of the reference β-1,3-1,4-glucan for the total area of all the peaks is between 30 and 70% . The total surface area of a monosaccharide region and a disaccharide region is between 10 and 50%, the area of the disaccharide region being greater than that of the monosaccharide region. |