Current Research and Applications of Starch-Based Biodegradable Films for Food Packaging

Onyeaka, Helen; Obileke, KeChrist; Makaka, Golden; Nwokolo, Nwabunwanne

doi:10.3390/polym14061126

Cited by 74 publications

(46 citation statements)

References 97 publications

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“…Biomolecules such as starch, bacterial cellulose, and gelatin have been used to develop packaging materials [ 2 ]. These packaging materials are considered biodegradable, sustainable, and environmentally friendly [ 3 , 4 ]. However, some disadvantages must be overcome, such as their high hydrophilicity, low water vapor, gas, and light barrier, and low mechanical resistance [ 1 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Dielectric Barrier Discharge Cold Plasma Treatment on Starch, Gelatin, and Bacterial Cellulose Biodegradable Polymeric Films

et al. 2022

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The environmental damage caused by plastic packaging and the need to reduce pollution requires actions to substitute plastic materials for more sustainable and biodegradable materials. Starch, gelatin, and bacterial cellulose films are three potential biodegradable polymeric films for use in packaging. However, these materials need improvements in their physical, chemical, and mechanical properties to be used in packaging. In this work, these films were treated with cold plasma to evaluate the effects of treatment conditions on several physical, chemical, and mechanical properties. The dielectric barrier discharge plasma technology was applied with varying treatment times (0 to 20 min) and excitation frequencies (50 to 900 Hz) at 20 kV. The optimal excitation frequency for starch films (50 Hz) was different from the optimal frequency for gelatin and bacterial cellulose films (900 Hz), indicating a high dependency on the treatment in this variable that is often neglected. Plasma treatment improved the hydrophobicity, surface morphology, water resistance, and mechanical properties of all three films, with the advantage of not recurring to chemical or biological additives.

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Section: Introductionmentioning

confidence: 99%

Influence of Dielectric Barrier Discharge Cold Plasma Treatment on Starch, Gelatin, and Bacterial Cellulose Biodegradable Polymeric Films

et al. 2022

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“…Nevertheless, significant research and technological work invested in the development of starch-based polymers in the packaging sectors of food, cosmetics, pharmaceuticals, etc. [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Characterization and Optimization of Real-Time Photoresponsive Gelatin for Direct Laser Writing

et al. 2022

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There is an abundance of plastic materials used in the widest range of applications, such as packaging, machine parts, biomedical devices and components, etc. However, most materials used today are non-decomposable in the environment, producing a huge burden on ecosystems. The search for better, safer alternatives is still on. Here we present a detailed analysis of a simple, cheap, non-toxic, even edible, eco-friendly material, which can be easily manufactured, laser patterned and used for the fabrication of complex structures. The base substance is gelatin which is made photoresponsive by adding plasticizers and sensitizers. The resulting films were analyzed with respect to their optical, thermal and mechanical properties, which can be modified by a slight variation of chemical composition. The material is optimized for rapid laser-manufacturing of elastic microstructures (lenses, gratings, cantilevers, etc.) without any waste or residues. Overall, the material properties were tailored to increase photothermal responsivity, improve the surface quality and achieve material homogeneity, transparency and long-term stability (as verified using electron microscopy, infrared spectroscopy and differential scanning calorimetry).

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“…Recently, films made of proteins and polysaccharides have increasingly been used in the preservation of fruits because of their good biodegradability, edibility, and miscibility [9][10][11][12]. However, in terms of the many important requirements for fruit preservation, including preservation effect, material flexibility, washability, high transparency, and antibacterial properties, these materials have not shown comprehensive characteristics.…”

Section: Introductionmentioning

confidence: 99%

Chitosan Biguanidine/PVP Antibacterial Coatings for Perishable Fruits

et al. 2022

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World hunger is on the rise, yet one-third of food is wasted. It is necessary to develop an effective food preservation method to reduce food waste. This article reports a composite film based on chitosan biguanidine hydrochloride(CBg) and poly (N-vinyl-2-pyrrolidone)(PVP) that can be used as a conformal coating for fresh produce. Due to the strong positive charge of CBg, the film has excellent antibacterial properties. Owing to the hydrogen bonds between CBg and PVP, the film has good flexibility and mechanical properties. In addition, the coating is washable, transparent, and can reduce the evaporation of water. The above characteristics mean the film has broad application prospects in the field of food preservation.

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Current Research and Applications of Starch-Based Biodegradable Films for Food Packaging

Cited by 74 publications

References 97 publications

Influence of Dielectric Barrier Discharge Cold Plasma Treatment on Starch, Gelatin, and Bacterial Cellulose Biodegradable Polymeric Films

Influence of Dielectric Barrier Discharge Cold Plasma Treatment on Starch, Gelatin, and Bacterial Cellulose Biodegradable Polymeric Films

Characterization and Optimization of Real-Time Photoresponsive Gelatin for Direct Laser Writing

Chitosan Biguanidine/PVP Antibacterial Coatings for Perishable Fruits

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