... -chains of D-glucose attached at the (1,6)position.Research has shown that insoluble(1,3/1,6)beta glucan(like yeast glucan),has greater ... biological activity than that of its soluble(1,3/1,4)beta glucan ... 80 meshPb, mg/kg ≤2.0β-Glucan content% ≥70.0As,mg/kg ≤3.0Protein, % ≤5.0Hg,mg/kg ≤1.0Moisture,% ≤5.0Cd,mg ...