Development and characterization of a novel edible film based on Althaea rosea flower gum: Investigating the reinforcing effects of bacterial nanocrystalline cellulose
| Autor: | Leila Mirmoghtadaie, Hedayat Hosseini, Saeedeh Shojaee-Aliabadi, Reza Yekta, Seyede Marzieh Hosseini, Sahar Norouzbeigi |
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| Rok vydání: | 2020 |
| Předmět: |
0303 health sciences
biology Atomic force microscopy Nanoparticle 02 engineering and technology General Medicine 021001 nanoscience & nanotechnology biology.organism_classification Biochemistry Nanocrystalline material Nanocellulose 03 medical and health sciences chemistry.chemical_compound Chemical engineering chemistry Structural Biology Agglomerate Althaea Glycerol Cellulose 0210 nano-technology Molecular Biology 030304 developmental biology |
| Zdroj: | International Journal of Biological Macromolecules. 158:327-337 |
| ISSN: | 0141-8130 |
| Popis: | Althaea rosea flowers were used to procure the gum (ARG) needed for film preparation. Pretest studies suggested 1.5% ARG + 50% glycerol as optimum for film preparation. The reinforcement impact of 3, 5, and 8 wt% bacterial nanocrystalline cellulose (BNC) incorporation (based on the dry weight of ARG) was investigated on the structural, mechanical, physical, thermal, optical, morphological, and barrier properties of films. The Results suggested that increasing the BNC concentration until a certain level (5 wt% BNC) could improve the latter properties. However, at higher concentration (8 wt% BNC), cellulose nanoparticles tended to agglomerate, which led to the impairment of some of those properties, especially barrier properties. According to AFM and SEM results, BNC addition increased surface roughness and coarseness. All BNC-loaded films showed better functions compared to control sample (0 wt% BNC) and the film containing 5 wt% BNC was suggested as the optimum film. |
| Databáze: | OpenAIRE |
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