نوع مقاله : مقاله کامل علمی پژوهشی
نویسندگان
1 دانشآموخته کارشناسی ارشد، گروه نانوبیوتکنولوژی، دانشکده علوم زیستی، دانشگاه تربیت مدرس، تهران، ایران.
2 استادیار، گروه نانوبیوتکنولوژی، دانشکده علوم زیستی، دانشگاه تربیت مدرس، تهران، ایران.
3 دانشیار، گروه نانوبیوتکنولوژی، دانشکده علوم زیستی، دانشگاه تربیت مدرس، تهران، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Introduction: Food safety against internal and external spoilage agents is an effective strategy for preserving food resources. For this reason, global efforts have been focused on developing safe and efficient packaging. In this regard, extensive research has been conducted to evaluate biopolymers as suitable alternatives to plastic packaging. Biodegradable polymers have limitations in terms of mechanical, physical, and functional properties.
Materials & Methods: To overcome these challenges, solutions such as polymer blending, use of plant extracts, and application of nanoparticles have been proposed. In this study, a biodegradable nanocomposite film was fabricated by combining polyvinyl alcohol, chitosan, zinc oxide (ZnO) nanoparticles, and pomegranate peel extract (PPE). Based on various experiments, 5 films were synthesized through trial and error to achieve maximum antibacterial properties, and 8 samples were designed based on the proposed model.
Results: Studies showed that sample number 4 had the largest diameter of the growth inhibition zone, and accordingly, optimal concentrations were selected for the final film. The results showed that the optimized nanocomposite film made with a combination of polyvinyl alcohol, chitosan, zinc oxide nanoparticles, and pomegranate peel extract, in addition to its desirable antibacterial and antifungal properties, has better physical and mechanical performance than the reference films. Conclusion: This film can be a suitable option for biodegradable food packaging, helping to increase the shelf life and maintain the quality of products.
Introduction: Food safety against internal and external spoilage agents is an effective strategy for preserving food resources. For this reason, global efforts have been focused on developing safe and efficient packaging. In this regard, extensive research has been conducted to evaluate biopolymers as suitable alternatives to plastic packaging. Biodegradable polymers have limitations in terms of mechanical, physical, and functional properties.
Materials & Methods: To overcome these challenges, solutions such as polymer blending, use of plant extracts, and application of nanoparticles have been proposed. In this study, a biodegradable nanocomposite film was fabricated by combining polyvinyl alcohol, chitosan, zinc oxide (ZnO) nanoparticles, and pomegranate peel extract (PPE). Based on various experiments, 5 films were synthesized through trial and error to achieve maximum antibacterial properties, and 8 samples were designed based on the proposed model.
Results: Studies showed that sample number 4 had the largest diameter of the growth inhibition zone, and accordingly, optimal concentrations were selected for the final film. The results showed that the optimized nanocomposite film made with a combination of polyvinyl alcohol, chitosan, zinc oxide nanoparticles, and pomegranate peel extract, in addition to its desirable antibacterial and antifungal properties, has better physical and mechanical performance than the reference films. Conclusion: This film can be a suitable option for biodegradable food packaging, helping to increase the shelf life and maintain the quality of products.
کلیدواژهها [English]
)