Gelatin/potato starch edible biocomposite films: Correlation between morphology and physical properties
| Autor: | Aleksandr Podshivalov, Mayya Uspenskaya, Mariia Zakharova, Ekaterina Glazacheva |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
food.ingredient Polymers and Plastics Starch Spinodal decomposition Nucleation 02 engineering and technology Gelatin Permeability chemistry.chemical_compound 0404 agricultural biotechnology food Phase (matter) Materials Chemistry Composite material Potato starch Solanum tuberosum Organic Chemistry Food Packaging Water 04 agricultural and veterinary sciences 021001 nanoscience & nanotechnology 040401 food science Casting chemistry Biocomposite 0210 nano-technology |
| Zdroj: | Carbohydrate Polymers. 157:1162-1172 |
| ISSN: | 0144-8617 |
| DOI: | 10.1016/j.carbpol.2016.10.079 |
| Popis: | The paper presents the results of studies of the microstructure morphology and the operational properties of the gelatin/potato starch/glycerol edible biocomposite films varying in the starch content from 0 to 50wt% prepared by casting film-forming solution and dying at 36°C for 15h. The biocomposite films were shown phase separated heterogeneous morphology with the gelatin matrix as a continuous phase and microgranules of starch as a minor phase. It is found that when the starch content ≤ 30wt% the phase separation mechanism is nucleation and grow, whereas the starch content > 30wt% then the spinodal decomposition is the dominant mechanism. The work focuses on findings the influence of the phase separation mechanisms on the size of starch granules during the drying process, as well as the impact of these mechanisms on optical, frictional, mechanical, thermal and water-barrier properties. |
| Databáze: | OpenAIRE |
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