作者
Ozioma Forstinus Nwabor, Sudarshan Singh, Supakit Paosen, Kitiya Vongkamjan, Supayang Piyawan Voravuthikunchai
发表日期
2020/8/1
期刊
Food Bioscience
卷号
36
页码范围
100609
出版商
Elsevier
简介
Polyvinyl alcohol-chitosan (PVA–CH) films containing biogenic silver nanoparticles were prepared using solvent casting and particulate leaching. The films were characterized for structural, thermal, mechanical, and physical properties. Antimicrobial and antioxidant activities of the films were measured. The FTIR and XRD analysis showed that addition of Ag nanoparticles did not alter the structure of the PVA–CH films. Thermal analysis of the films showed that PVA–CH/Ag nanoparticles films were thermally stable. The thickness and contact angles showed significant difference after the addition of Ag nanoparticles (p < 0.05). Antimicrobial activity of PVA–CH/Ag nanoparticles (1:1) films showed bactericidal effects against important foodborne pathogenic bacteria (Escherichia coli O157:H7, Listeria monocytogenes, Staphylococcus aureus, and Bacillus cereus), with >99.9% reduction. Antioxidant activities suggested …
引用总数
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