《电纺具有不同直链淀粉含量的天然和阴离子玉米淀粉纤维》

  • 来源专题:食物与营养
  • 编译者: 殷小溪
  • 发布时间:2018-11-07
  • 通过淀粉磷酸化和溶液时效处理,从天然和阴离子玉米淀粉的纤维形成溶液中获得具有一致形态的电纺纤维,其中淀粉含量<70%(w/w)。通过静电纺丝溶解在75%甲酸中的淀粉溶液(v/v)制备天然和阴离子(用三聚磷酸钠改性)玉米淀粉电纺纤维。探究了时间(24、48和72h)对淀粉溶液的流变性和电导率的影响,以及所得电纺纤维的材料性质(尺寸分布、形态和红外光谱)。由高直链淀粉含量Hylon VII和Hylon V制备的纤维显示出均匀的形态,而由常规玉米淀粉含量制备的纤维有串珠并具有不均匀的形态,直径在70至264nm之间变化。因此,这项研究中制备的电纺玉米淀粉纤维可用作食品和包装应用中活性组分的负载载体。

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