Noun
beta-glucan (plural beta-glucans)
A group of polysaccharides naturally occurring in the cell walls of cereals, bacteria, and fungi.
In comparison, the indigestible polysaccharide cellulose is also a beta-glucan, but is not soluble because of its (1→4)-beta-D-linkages. Source: Internet
This type of beta-glucan is also referred to as a mixed-linkage (1→3), (1→4)-beta-D-glucan. Source: Internet