^(60)Co γ射线辐照-水解法制备多孔玉米淀粉工艺优化  

Process Optimization of Preparation of Porous Starch by ^(60)Co γ Ray Radiation Cooperated with Hydrolysis Reaction

作　　者：李澧[1] 朱佳廷[1] 冯敏[1] 顾贵强[1] 杨萍[1] 王德宁[1] 

机构地区：[1]江苏省农业科学院农业设施与装备研究所,江苏南京210014

出　　处：《核农学报》2014年第5期833-838,共6页Journal of Nuclear Agricultural Sciences

基　　金：江苏省农业科技自主创新资金项目(CX(13)3031)

摘　　要：采用60Coγ射线辐照-水解法制备玉米多孔淀粉。分别考察了γ射线辐照剂量和水解时间对多孔淀粉形貌和吸附量的影响,得到多孔淀粉的最佳制备条件为:40 kGy的辐照剂量和6小时的水解时间。扫描电子显微镜(SEM)和甲基紫吸附结果表明,此条件下制备的多孔淀粉孔分布均匀,甲基紫的吸附量为1.56mg·g-1。Corn porous starch was prepared by ^60Co γ ray radiation cooperated with hydrolysis reaction. In this paper,we studied the effect of γ ray radiation doses and hydrolysis reaction times on pore-sized distribution and absorbing capacity of porous starch. The optimal technical conditions are obtained as follows 40 kGy irradiation doses and 6 hours hydrolysis reaction times. Scanning electron microscopy（ SEM） and methyl violet adsorbing capacity results showed under these conditions the max imum methyl violet absorbing capacity is 1. 56 mg·g- 1and excellent pore formation were achieved.

关 键 词：^60Coγ射线 辐照 多孔淀粉 吸附 

分 类 号：TS235.1[轻工技术与工程—粮食、油脂及植物蛋白工程]