In order to improve high hydrophilicity and low mechanical properties of biodegradable high-methoxy pectin (HMP) film, dialdehyde starch (DS) were introduced. In this study, different HMP/DS blended films were prepared by varying DS contents. It was observed from Infrared spectra that lower peak intensity of C=O stretching was detected after the incorporation of DS into HPM film. Moreover, moisture uptake of various HMP/DS blended films was found to be significantly lower than those of HMP film with the addition of low DS content. The improvement of mechanical properties was observed in various HPM/DS blended films. In addition, color parameters, swelling power, morphological and biodegradable properties of various HMP/DS blended films were also investigated.

为了提高可生物降解的高甲氧基果胶（HMP）薄膜的高亲水性和低机械性能，引入了二醛淀粉（DS）。在这项研究中，通过改变DS的含量来制备不同的HMP / DS混合膜。从红外光谱观察到，将DS掺入HPM膜中后，检测到较低的C ＝ O拉伸峰强度。此外，发现在添加低DS含量的情况下，各种HMP / DS混合膜的吸湿性明显低于HMP膜。在各种HPM / DS共混膜中观察到机械性能的改善。此外，还研究了各种HMP / DS混合膜的颜色参数，溶胀力，形态和生物降解性能。