摘要:
淮山多糖是淮山块茎中重要的营养和活性成分,具有抗氧化、维持肠道稳态、免疫调节、降血糖、保护肝脏等生理功能,易被机体消化、代谢,无毒副作用。在一定条件下,淮山多糖还可表现出良好的乳化性和流变学特性,展现出广阔的应用前景。本文从结构、功能、理化性质方面对国内外关于淮山多糖的研究进展进行综述,列举了多种淮山多糖的分子量、单糖组成、糖苷键类型等,介绍了淮山多糖生物活性的作用机制以及理化性质的影响因素,并对淮山多糖可开发的产品类型和未来的研究方向进行展望,以期为淮山多糖的近一步研究与应用提供参考。
Abstract:
Yam(Dioscorea opposita Thunb.)polysaccharide,the major nutrient and bioactive substances in the yam,has various physiological functions including anti-oxidation,maintenance of intestinal homeostasis,immunomodulation,hypoglycemia and liver protection. Yam polysaccharide is easy to be metabolized and has no toxic side effects. Under certain conditions,the polysaccharides can also exhibit better emulsification and rheological properties,showing broad application prospects. In this paper,the structure,function and physicochemical properties of yam polysaccharides are introduced. This review enumerates various yam polysaccharides’ the molecular weight,monosaccharide composition,glycosidic bond type,ect. It also introduces the mechanism of biological activity and the influence factors of physical and chemical properties,meanwhile the product development and further investigation directions of yam polysaccharides are prospected. This paper might provide some references for the further research and application of yam polysaccharides in the future.
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