摘要
利用盐酸对玉米淀粉进行处理,通过L9(34)正交试验,研究酸浓度、反应时间、反应温度和搅拌速度对微孔淀粉吸附性能的影响,并通过差示扫描量热法(DSC)、X射线衍射分析(XRD)研究玉米微孔淀粉的结构。盐酸制备玉米微孔淀粉的最佳工艺条件是:盐酸浓度4.0%,反应时间8h,反应温度40℃,搅拌速度为1500r/min。通过XRD、DSC分析发现:玉米微孔淀粉的结晶部分比例增加。
Com micro-porous starches were formed using acid methods. The absorption performances of micro-porous starches were influenced by factors which were different temperature, HCI concentration, hydrolysis time and different mixing velocity through L9（3^4） orthogonal experiments. The structure of microporous starches was investigated by DSC or XRD technology. The experiments showed HCI hydrolisis preparation corn starches best craft condition is： HCI amount used 2.0%, reaction temperature 40 ℃, reaction time 8 h and mixing velocity 1500 r/min. The ratio of crystal segment for com micro-porous starch increase by DSC and XRD technology.
出处
《食品科技》
CAS
北大核心
2009年第3期216-219,共4页
Food Science and Technology
基金
柳州市高新开发区资助项目(2007010109)
