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Jul 19, 2024;27 (7): 110008.

ZnO nanoparticles encapsulated cellulose-lignin film for antibacterial and biodegradable food packaging.

Xinyi Zhu, Henghui Li, Ling Cai, Yixian Wu, Jun Wang, Shangcheng Xu, Shoulin Wang, Hao Wang, Daorong Wang, Jin Chen
Author Information
  1. Xinyi Zhu: The Affiliated Chongqing Prevention and Treatment Center for Occupational Diseases, School of Public Health, Nanjing Medical University, Chongqing 400060, China.
  2. Henghui Li: The Affiliated Chongqing Prevention and Treatment Center for Occupational Diseases, School of Public Health, Nanjing Medical University, Chongqing 400060, China.
  3. Ling Cai: The Affiliated Chongqing Prevention and Treatment Center for Occupational Diseases, School of Public Health, Nanjing Medical University, Chongqing 400060, China.
  4. Yixian Wu: Department of Health Promotion Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
  5. Jun Wang: The Affiliated Chongqing Prevention and Treatment Center for Occupational Diseases, School of Public Health, Nanjing Medical University, Chongqing 400060, China.
  6. Shangcheng Xu: The Affiliated Chongqing Prevention and Treatment Center for Occupational Diseases, School of Public Health, Nanjing Medical University, Chongqing 400060, China.
  7. Shoulin Wang: The Key Laboratory of Modern Toxicology, Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
  8. Hao Wang: Northern Jiangsu People's Hospital Affiliated to Nanjing Medical University, Yangzhou 225001, China.
  9. Daorong Wang: Northern Jiangsu People's Hospital Affiliated to Nanjing Medical University, Yangzhou 225001, China.
  10. Jin Chen: The Affiliated Chongqing Prevention and Treatment Center for Occupational Diseases, School of Public Health, Nanjing Medical University, Chongqing 400060, China.
PMID: 38989453 DOI: 10.1016/j.isci.2024.110008

Abstract

Foodborne illness caused by consuming foods contaminated by pathogens remains threating to the public health. Despite considerable efforts of using renewable source materials, it is highly demanding to fabricate food packaging with multiple properties including eco-friendliness, bactericidal effect and biocompatibility. Here, sodium lignosulfonate (SL) and ZnO nanoparticles (ZnO NPs) were used as functional filler and structure components, respectively, on the cellulose nanofibers (CNFs)-based films, which endows the produced membrane (CNF/SL-ZnO) the UV-light blocking, antioxidant, and antimicrobial characteristics. Due to the interconnected polymeric structure, the prepared CNF/SL-ZnO films possessed considerable mechanical properties, thermal stability, and good moisture barrier capability. Moreover, the tested samples exhibited an improved shelf life in food packaging. Furthermore, metagenome analysis revealed superior biodegradability of obtained films with negligible side effect on the soil microenvironment. Therefore, the biocompatible, degradable, and antibacterial CNF/SL-ZnO film holds enormous potential for sustainable uses including food packaging.

Keywords

Biomass Biotechnology Materials chemistry Materials science

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