| 内容提要: |
In this work, crude PCS was extracted by water extraction and alcohol precipitation. And then crude PCS was isolated and purified into three main fractions by ultrafiltration, named PCS1, PCS2 and PCS3. The comparison in vitro antioxidant and α-amylase inhibitory assay among them was carried out. The physicochemical properties of the most effective polysaccharide PSC2 were characterized. Furthermore, the hypoglycemic and hypolipidemic effects of PCS2 were investigated in T2DM mice induced by combination of high-fat diet and streptozotocin (STZ) injection. |