修饰改性对β-葡聚糖溶液构象的影响

摘要/Abstract

摘要： 在对葡聚糖相关国内和国际文献进行统计分析的基础上，全面综述了不同修饰改性方法对β-葡聚糖溶液构象的影响，物理修饰改性方法主要包括超声波法、辐照法、高压微射流法和微波法，对β-葡聚糖在溶液中的构象影响较小；化学修饰改性方法主要包括羧甲基化、硫酸酯化和磷酸酯化，使得β-葡聚糖链的柔顺性和刚性增加，在溶液中呈较伸展的柔顺链、半刚性链或三螺旋链构象；生物修饰改性方法主要为β-葡聚糖酶法，改性后的β-葡聚糖在溶液中呈无规线团构象。本文全面分析了修饰改性对β-葡聚糖溶液构象影响研究中存在的问题，并对今后的发展方向进行了展望。

关键词: β-葡聚糖, 修饰改性, 构象转变

Abstract: On the basis of statistic analysis about glucan relevant papers, the effects of modified methods on the conformation of β-glucan in aqueous solutions were reviewed. The physical modified methods including ultrasonic, irradiation, high pressure microfluidization and microwave, have less influences on the conformation of β-glucan in solution. The chemical modified methods containing carboxymethyl, sulfated and phosphoric esterification, make the flexibility and stiffness of β-glucan chain increased and present as more extended flexible chain, semi-stiff chain or triple helix conformation in solution. Biological modified method is mainly enzymatic method. After β-glucanase treatment, the conformation of oat β-glucan in solution is random coil. Besides that, we propose the problems existing in the research of the effect of modified methods on the conformation of β-glucan and prospect its development trends in the future.

Key words: β-glucan, modification, conformation transition

中图分类号:

TS201.7

高洁刘红芝刘丽王强. 修饰改性对β-葡聚糖溶液构象的影响[J]. 食品科学, 0, (): 0-0.

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