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Effect of acid modification on the properties of potato starch pastes and starch film

机译:酸改性对马铃薯淀粉糊和淀粉膜性质的影响

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The effect of acid modification using lmol/L HCl on viscosity, thermal properties and mechanical properties of potato starch pastes and starch film were investigated. After acid modification, the surface of starch granules did not show more roughness and viscosity of starch pastes become lower. The results of DSC indicated that acid should act on amorphous region of starch firstly and would act on the crystallization region with the longer treatment time. In the very close viscosity scope, the mechanical properties of starch films were increased obviously after acid modification.
机译:研究了利用Lmol / L HCl对马铃薯淀粉糊和淀粉膜的热性质和机械性能的酸改性的影响。酸性改性后,淀粉颗粒的表面并未显示出更多的粗糙度和淀粉糊的粘度变低。 DSC的结果表明,酸首先应对淀粉的无定形区域作用,并在较长的治疗时间上作用于结晶区域。在非常紧密的粘度范围中,酸性修饰后,淀粉膜的机械性能明显增加。

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