Abstract
The purpose of this study was to examine the hypoglycaemic activity of a new polysaccharide extracted from seed polysaccharide (ASP) was administered orally for 4 weeks and the blood glucose changes were determined in fasted rats. Plasma insulin, cholesterol and triglycerides levels were also determined. The ASP at a dose of 200 mg/kg body weight (bw) produced a significant decrease in blood glucose levels in diabetic rats (P <0.01). In the other hand, the effect of the ASP on the plasma cholesterol were also significant in diabetic rats (P <0.05). Furthermore, there was a significant effect of ASP on plasma triglycerides in both normal and diabetic groups. In order to characterise the active principle(s), which could be responsible for the therapeutic effect, a preliminary phytochemical analysis of the ASP was performed. The monosaccharides of ASP were composed of L-Ara, D-Xyl, D-Lyx, D-Man, D-Glc, D-Gal. Their molar proportions were 1, 4.98, 1.69, 27.86, 3.76 and 13.92, respectively.
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