烯基琥珀酸酐表面改性淀粉膜羟基取代度的影响因素  

Factors influencing degree of substitution of hydroxyl groups of surface-modified starch films with alkenyl succinic anhydrides

作　　者：任丽丽[1,2] 周江[1,2] 佟金[1,2] 

机构地区：[1]吉林大学生物与农业工程学院,长春130022 [2]吉林大学工程仿生教育部重点实验室,长春130022

出　　处：《吉林大学学报（工学版）》2010年第6期1624-1628,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(50673037)

摘　　要：以十二烯基琥珀酸酐和辛烯基琥珀酸酐为酯化剂对淀粉膜进行表面改性,通过正交试验研究了各种因素对淀粉膜表面羟基取代度的综合影响。结果表明,用十二烯基琥珀酸酐表面改性时,影响羟基取代度的最重要因素是酸酐稀释倍数;用辛烯基琥珀酸酐改性时,影响羟基取代度的最主要的因素是平衡环境的湿度;将十二烯基琥珀酸酐和辛烯基琥珀酸酐按不同的比例混合起来对淀粉膜表面改性,影响其羟基取代度的最主要因素是碱溶液质量分数。The surface of starch films was modified through esteritification using Dodecenyl Succinic Anhydride（DDSA） and Octenyl Succinic Anhydride（OSA） as reactants.Orthogonal test designs were carried out to investigate factors influencing degree of substitution of hydroxyl groups in the surface layer of starch films.The results show that when the surface of starch films was modified by DDSA,the concentration of DDSA in ethanol was found to be the primary parameter to affect the degree of substitution of hydroxyl groups.When the surface of starch films was modified by OSA,environment equilibrium humidity was found to be the primary parameter to affect the degree of substitution of hydroxyl groups.When the surface of starch films was modified by the mixture of DDSA and OSA,the concentration of alkaline aqueous solution was found to be the primary parameter to affect the degree of substitution of the hydroxyl groups.

关 键 词：淀粉加工 羟基取代度 表面改性 烯基琥珀酸酐 正交试验设计 

分 类 号：TS236.9[轻工技术与工程—粮食、油脂及植物蛋白工程]