To study the antioxidant effect in vivo of FSPV and PSPV on mice, contents of malondiadehyde(MDA) and lipofuscin (LPF), enzyme activities of superoxide dismutase(SOD) and glutathione peroxidase(GSHpx) and the total antioxidant competency (TAOC) in the serum, heart, liver and kidney of mice were measured by reagent box.

Based on the latest research result in recent 10 years,this paper provides an overview of the chemical constituents and their biological effects about the sweet-potato glycoprotein;sweet-potato polysaccharide,and sweet-potato plyphenolic.

AIM:To observe the effects of koali vine polysaccharides(STDT)on reducing blood lipids in hyperlipidemic animal model.

To study the antifatigue effect of flavonoids from sweet potato vines(FSPV), three doses (100, 200 and 400mg/kg bw·d) of FSPV respectively with 0.

To observe the hypoglycemic effect of polysaccharides from sweet potato vines (PSPV) on experimental diabetic mice, mice were divided into different groups.

To observe the blood-glucose lowering effects of flavonoids extracted from sweet potato vines (FSPV) on experimental diabetic mice, the mice were divided into different groups.

Study on preparation process and antioxidant activities of sulfated sweet potato leaf polysaccarides

Selenium Sweet potato leaf polysaccarides(Se-PSPL) were synthesized used by SeOCl2 and the refined Sweet potato leaf Polysaccarides(PSPL).

The paper investgates the effect of extracting temperature, extracting time,and material-medium-rade on extraction of polysaccharides from stem of sweet potato with orthogonal design.