【摘要】 目的对可食用保鲜膜的性能进行拓展。方法采用层层自组装静电沉积法制备可食用水果保鲜膜,并对膜进行表征,探究膜的微观结构、透明度、亲疏水性、自修复性等。结果该可食用膜结构致密,具有较好的透明度,透光率在90%以上;具有较好的疏水性,接触角θ约为102°;能实现形貌和力学性能上的修复,修复前后的膜都能负载200 g的砝码,同时都无法负载300 g的砝码。结论可食用保鲜膜的这些性能提高了该可食用膜的保鲜效果。更多还原

【Abstract】 The work aims to extend the properties of edible fresh-keeping film.Edible fruit fresh-keeping film was prepared with the layer-by-layer self-assembly electrostatic deposition technology.Meanwhile, the microstructure, transparency, hydrophilic-hydrophobic property and self-healing ability of the edible film were characterized.The edible film was of dense microstructure and high transparency, with the transmittance above 90%; the film was of high hydrophobicity and the contact angle θ was about 102°; the edible film could self-heal morphologically and mechanically and the edible film and self-healed film could hold the weight of 200 g and could not hold the weight of 300 g.It is concluded that these properties of edible fresh-keeping film have improved the fresh-keeping effect of the edible film.更多还原