以木薯淀粉为原料制备B型淀粉球晶  

Preparation of B-type starch spherocrystals from cassava starches

作　　者：王红强[1] 李庆余[1] 陈美超[1] 黄芬芬[1] 王芳平[1] 林日红[1] 

机构地区：[1]广西师范大学化学化工学院,广西桂林541004

出　　处：《食品工业科技》2008年第2期175-176,共2页Science and Technology of Food Industry

基　　金：国家自然科学基金(20663001);广西教育厅基金(200507018)资助项目;广西师范大学博士启动基金资助项目

摘　　要：以木薯淀粉为原料,采用快速冷冻结晶法制备B型淀粉球晶。采用X射线衍射、电子扫描电镜对制得的淀粉球晶进行了表征。结果表明:对酸解悬浮液采用Na2CO3饱和溶液洗涤效果最好,可以大大地缩短洗涤时间。X射线衍射分析表明,制备得到的淀粉球晶具有典型的B型晶体结构,并且球晶粒度均匀,球形度好,大小在1～2μm之间。The B-type starch spherocrystals were prepared by dissolution and freezing recrystallization with the cassava acid hydrolyzed starch. The starch spherocrystals were characterized with scanning electron microscope （SEM） and X-ray diffraction （XRD）. The results showed that Na2CO3 saturation solution had the best effect on the washing of acid hyclrolyzed suspending solution. The washing time was shorted greatly. The starch spherocrystal had typical B- type crystal structure form the XRD. The spherocrystal had uniformilty granularity and fine sphere with 1-2μm.

关 键 词：木薯淀粉 冷冻重结晶 酸解 B型淀粉球晶 

分 类 号：TS236.9[轻工技术与工程—粮食、油脂及植物蛋白工程]