Through starch phosphorylation and solution aging treatments, the aim of this work was to electrospun fibers with consistent morphology from fiber-forming solutions from native and anionic corn starches with amylose contents of <70% (w/w). The electrospun fibers of native and anionic (modified with sodium tripolyphosphate) corn starches (regular amylose content corn starch and high amylose content Hylon V and Hylon VII corn starches) were prepared by electrospinning of starch solutions dissolved in 75% formic acid (v/v) solvent. The effects of the aging (24, 48, and 72 h) on the rheology and electrical conductivity of the starch solutions, as well as the material properties (size distribution, morphology, and infrared spectrum) of the resulting electrospun fibers, were evaluated. Fibers produced from Hylon VII and Hylon V starches showed homogeneous morphologies, whereas the fibers from regular corn starches contained droplets and had heterogeneous morphologies, with diameter varied from 70 to 264 nm. Both native and anionic corn starches having amylose contents of <70% (w/w) produced smooth continuous fibers. The electrospun corn starch fibers potentially can be used as carriers for the encapsulation of active components in food and packaging applications.

通过淀粉磷酸化和溶液老化处理，这项工作的目的是从直链淀粉含量小于70％（w / w）的天然和阴离子玉米淀粉的成纤溶液中电纺出具有一致形态的纤维。天然和阴离子（用三聚磷酸钠改性）玉米淀粉（常规直链淀粉含量的玉米淀粉和高直链淀粉含量的Hylon V和Hylon VII玉米淀粉）的电纺纤维是通过将75％甲酸（v/ v）溶剂。评估了老化（24、48和72小时）对淀粉溶液的流变性和电导率以及所得电纺纤维的材料性能（尺寸分布，形态和红外光谱）的影响。由Hylon VII和Hylon V淀粉生产的纤维表现出均一的形态，而来自常规玉米淀粉的纤维含有液滴且具有异质的形态，其直径在70至264 nm之间变化。直链淀粉含量小于70％（w / w）的天然和阴离子玉米淀粉均可产生光滑的连续纤维。电纺玉米淀粉纤维潜在地可以用作载体，用于在食品和包装应用中封装活性成分。