葡聚糖来源于明串珠菌属，Dextran from Leuconostoc spp.；Mr ~6,000

Dextran is a branched glucan composed of linear α(1→6) linked glucose units and α (1→3) link initiated branches. Dextran ranges in size from 10,000 to 150,000 Kd. Dextrans are used in many applications as volume extenders, stabilizers, matrix components, binding platforms, lubricants and physical structure components. Low molecular weight dextrans are often preferred versus high molecular weight dextrans due to their different viscosities, aggregation and permeation properties.

 

葡聚糖是一种支链葡聚糖α；（1→；6） ，是由线性α； (1→；3) 葡萄糖单糖链接于初始分支而组成。葡聚糖的分子量为10000到150000 Kd。 葡聚糖应用于很多用途，如体积扩展剂、稳定剂、基质组份、结合平台、润滑剂及物理结构组份。由于低分子量的葡聚糖具有不同的粘度、聚集性和渗透性能，因此通常比高分子量的葡聚糖更受欢迎。