摘要
为提高淀粉材料的力学性能和耐水性能,以六偏磷酸钠为交联剂,有机硅烷偶联剂KH-570为疏水化改性剂,通过正交试验和四因素二次旋转正交组合试验设计,对玉米淀粉交联疏水化双改性工艺参数进行优化。结果表明:淀粉交联改性的最佳工艺参数为pH值11,六偏磷酸钠的用量1.5%,温度40℃,时间2 h;淀粉疏水偶联化改性最佳工艺参数为乙醇浓度95.70%,KH-570用量1.68%(占淀粉干基),稀释度2.81%,反应时间29.61 m in。改性淀粉吸水率最小为16.23%。
The hydrophobic double modified starch was prepared from corn starch with cress linking agent Sodium Hexametaphosphate and organosilane coupling agents KH-570. By means of orthogonal experiment and four-factors quadratic orthogonal rotation combination experimenent design, the process parameters of hydrephobic doublemodified starch was optimized. Results indicated that the optimized process parameters of cress link modified starch including： pH 11, Sodium Hexametaphosphate 1.5% （ dry starch based）, temperature of reaction 40 ℃, time of reaction 2 hours. The optimized process parameters are alcohol concentration 95.70% , amount of KH-570 dosage 1.68% （dry starch based）, dilution 2.81%, time of reaction 29.61 min . when taken these process parameters, the minimum absorption rate of double modified starch is 16.23%.
出处
《食品与机械》
CSCD
北大核心
2008年第4期33-36,共4页
Food and Machinery
基金
黑龙江省"十一五"科技攻关重大项目(项目编号:GA06B401-3)
关键词
六偏磷酸钠
交联淀粉
疏水化
工艺参数
优化
Sodium hexametaphosphate
Cress link starch
Hydrophobic
Process parameters
Optimize
