Electrospun pullulan/PVA nanofibers integrated with thymol-loaded porphyrin metal-organic framework for antibacterial food packaging
| Autor: | Tiantian Min, Haiyu Du, Xiaoli Sun, Liping Zhou, Yongqiang Wen, Zhu Zhu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Staphylococcus aureus
Porphyrins Polymers and Plastics Biocompatibility Cell Survival Nanofibers Nanoparticle 02 engineering and technology 010402 general chemistry 01 natural sciences Polyvinyl alcohol chemistry.chemical_compound Materials Chemistry Escherichia coli Humans Thymol Glucans Metal-Organic Frameworks Chemistry Organic Chemistry Food Packaging Pullulan Biodegradation 021001 nanoscience & nanotechnology 0104 chemical sciences Anti-Bacterial Agents Food packaging Chemical engineering Nanofiber Fruit Polyvinyl Alcohol Nanoparticles Botrytis 0210 nano-technology |
| Zdroj: | Carbohydrate polymers. 270 |
| ISSN: | 1879-1344 |
| Popis: | Pathogenic microorganisms posed perniciousness for postharvest fruits and vegetables, as well as brought potential risks for human health. In this work, pullulan/polyvinyl alcohol (PUL/PVA) nanofibers incorporated with thymol-loaded porphyrin metal-organic framework nanoparticles (THY@PCN-224 NPs) were developed for antibacterial food packaging. PCN-224 MOFs not only act as thymol loading carriers but also highly produce singlet oxygen (1O2) with bactericidal activity. PUL/PVA nanofiber was a promising sustainable substrate because of its good flexibility, biocompatibility and biodegradability. The loading capacity of PCN-224 for thymol was about 20%. The THY@PCN/PUL/PVA nanofibers exhibited synergistic antibacterial activities against E. coli (~99%) and S. aureus (~98%) under light irradiation. The cell viability assays and fruit preservation study demonstrated good biosafety of the polymeric film. The results suggested that this novel nanofiber has potential application prospects for food packaging. |
| Databáze: | OpenAIRE |
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