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NaCl和CaCl2对海藻酸钠-普通玉米淀粉复合体系理化性质的影响

Journal of Qingdao Agricultural University(Ziran Kexueban)(2017)

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Abstract
为探讨NaCl、CaCl2对海藻酸钠-普通玉米淀粉复合体系理化性质的影响,采用快速黏度分析仪、差示扫描量热仪、动态流变仪等,测定添加NaCl和CaCl2对普通玉米淀粉及海藻酸钠-普通玉米淀粉复合体系理化性质的影响.结果表明,NaCl、CaCl2增加普通玉米淀粉、海藻酸钠-普通玉米淀粉复合体系的糊化难度,使样品To、Tp、Tc升高,溶解度、膨胀度降低.NaCl、CaCl2增加普通玉米淀粉、海藻酸钠-普通玉米淀粉复合体系中分子间的相互作用,使样品稠度、G'、G"增加.NaCl、CaCl2使普通玉米淀粉及海藻酸钠-普通玉米淀粉复合体系的糊化焓、老化率降低.海藻酸钠减弱了CaCl2对样品物化性质的影响程度.
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