微观结构
材料科学
同种类的
明胶
复合材料
相容性(地球化学)
薄膜
化学工程
纳米技术
化学
有机化学
热力学
物理
工程类
作者
Ling Wu,Bo Cui,Dong Die,Zhengzong Wu,Jianpeng Li,Lu Lu,Na Wang,Katsuyoshi Nishinari,Meng Zhao
标识
DOI:10.1016/j.carbpol.2023.121733
摘要
The influence of phase separation behavior on bio-based film properties has attracted more and more attention. This work investigated the effects of microstructure and compatibility of the type-A gelatin (GE)-dextran (DE) mixtures on GE-DE edible film properties. Three kinds of GE-DE edible films with different textures were prepared via modulating the microstructure and compatibility of film-forming mixtures using the method of gelation-drying, e.g., homogeneous films, microphase separated films with relatively homogeneous texture, and microphase separated films with uneven texture. The optical, mechanical, water barrier, and thermal properties of films were characterized. Results showed that microstructure and compatibility significantly affected the film properties. In general, films with DE-in-GE microstructure exhibited the best film properties, followed by films with water-in-water-in-water/bicontinuous microstructure, and then films with GE-in-DE microstructure. And homogeneous films showed the best film properties, followed by films with relatively homogeneous texture, and then films with uneven texture. The weight loss results suggested the potential of GE-DE edible films for application in cherry tomato preservation. This work provided interesting information for the design of film with fabricated microstructure and properties.
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