辐照玉米淀粉制备慢消化淀粉研究

Shao-xin HU,Guo-liang LI,Li-xin FU,Guang-hui HU,Ming-quan WANG,Hong-lei REN,Jian-fei YANG,Chang LIU

Heilongjiang Agricultural Sciences（2020）

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Abstract

为提高普通玉米淀粉中慢消化淀粉的含量,采用60 Co-γ射线玉米淀粉进行辐照处理,分别采用2.0,4.0,8.0,12.0,16.0kGy5个剂量,测定不同剂量辐照处理后玉米淀粉中慢消化淀粉的含量.结果表明:获得慢消化淀粉含量(57.45％)最高的辐照剂量为4.0 kGy.通过扫描电子显微镜(SEM)表征分析表明,玉米淀粉颗粒辐照处理后,颗粒表面出现裂纹.通过偏光显微镜表观形态分析,辐照处理后偏光十字消失.

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