Physicochemical characterization and the hypoglycemia effects of polysaccharide isolated from Passiflora edulis Sims peel

文献类型： 外文期刊

第一作者： Guan, Yuan

作者： Guan, Yuan;Sun, Hefei;Chen, Huiying;Li, Peijun;Li, Xia;Shan, Yang

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期刊名称：FOOD & FUNCTION （ 影响因子：4.171； 五年影响因子：4.364 ）

ISSN： 2042-6496

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收录情况： SCI

摘要： One polysaccharide, designated as WPEP-A, was isolated from Passiflora edulis Sims peel and its hypoglycemic effects on diabetic db/db mice were evaluated. Physicochemical characterization showed that WPEP-A was composed of galactose, glucose, xylose, rhamnose, galacturonic acid and glucuronic acid with a molecular weight of 9.51 x 10(4) Da. We observed an inhibition in weight gain and blood glucose levels. Glucose tolerance and insulin tolerance improved after the administration of WPEP-A. In addition, our data showed increased antioxidant enzyme activities. Furthermore, the levels of serum insulin and triglyceride decreased with the recovery of liver damage. Meanwhile, positive changes in short chain fatty acid content were observed, and the mRNA levels of glucagon-like peptide 1 receptor, glucagon and prohormone convertase 3 were up-regulated in the intestinal tract. In summary, our results showed that WPEP-A had hypoglycemic activity and improved intestinal function in diabetic mice, which may contribute to the attenuation of the hypoglycemia effects.

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