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Position: Home > Articles > Research Progress in the Conformation of Modified β-Glucan in Aqueous Solution FOOD SCIENCE 2013,34 (13) 323-328

修饰改性β-葡聚糖溶液构象研究进展

作  者:
高洁;刘红芝;刘丽;王强
单  位:
中国农业科学院农产品加工研究所农业部农产品加工综合性重点实验室
关键词:
β-葡聚糖;修饰改性;构象转变
摘  要:
在对葡聚糖研究的相关国内和国际文献进行统计分析的基础上,全面综述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、微波法和其他方法,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,改性后的燕麦β-葡聚糖在溶液中呈无规线团构象。本文全面分析修饰改性β-葡聚糖溶液构象研究中存在的问题,并对今后的发展方向进行展望。
译  名:
Research Progress in the Conformation of Modified β-Glucan in Aqueous Solution
作  者:
GAO Jie,LIU Hong-zhi,LIU Li,WANG Qiang(Key Laboratory of Agro-products Processing,Ministry of Agriculture,Institute of Agro-products Processing Science and Technology,Chinese Academy of Agricultural Sciences,Beijing 100193,China)
关键词:
β-glucan;modification;conformation transition
摘  要:
Based on the statistical analysis of relevant literature about glucan,the different effects on modified methods affecting the conformation of β-glucan in aqueous solutions have been reviewed.The physical modified methods include ultrasound,irradiation,microwave and other methods,which have less impact on the conformation of β-glucan in solution.The chemical modified methods include carboxymethyl,sulfated and phosphoric esterification,which could increase the flexibility and stiffness of β-glucan chain and cause the following conformations present in solution,extended flexible chain,semi-stiff chain or triple helix chain.Biological modified methods mainly refer to enzymatic method.After β-glucanase treatment,oat β-glucan exists as random coil in solution.Moreover,the existing problems in the research of modified β-glucan conformation and its future development tendencies are proposed.

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