1. Preparation of sodium alginate modified silver-metal organic framework and application in citric acid/PVA antimicrobial packaging.
- Author
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Xu M, Liu S, Wen J, Wang B, Wang H, Lian X, Gao X, Niu B, and Li W
- Subjects
- Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents chemistry, Microbial Sensitivity Tests, Raphanus chemistry, Raphanus growth & development, Raphanus drug effects, Anti-Infective Agents pharmacology, Anti-Infective Agents chemistry, Alginates chemistry, Alginates pharmacology, Food Packaging instrumentation, Citric Acid chemistry, Citric Acid pharmacology, Silver chemistry, Silver pharmacology, Escherichia coli drug effects, Escherichia coli growth & development, Staphylococcus aureus drug effects, Staphylococcus aureus growth & development, Metal-Organic Frameworks chemistry, Metal-Organic Frameworks pharmacology
- Abstract
Silver-metal organic framework (Ag@MOF) has exhibited outstanding antimicrobial activity in antimicrobial applications, and reducing the biotoxicity associated with silver has become a research priority. In this study, Ag@MOF was initially modified with sodium alginate (SA) to form SA-Ag@MOF. The results showed that SA could control the release of Ag
+ , reducing the release by about 8% at 24 h, and the biotoxicity was significantly reduced. Finally, SA-Ag@MOF was applied as an antimicrobial agent in citric acid-modified PVA film to develop a novel composite antimicrobial film. When added at 2 MIC, the CA3-M2 film can effectively inhibit the growth of E. coli and S. aureus, and the inhibition rate has reached 98%. For white radish packaging applications, CA3-M2 film inhibited the growth of surface microorganisms, while ensuring moisture and tissue hardness to extend shelf-life up to 7 days. Overall, the strategy conceived here can be a theoretical basis for novel antimicrobial packaging., Competing Interests: Declaration of competing interest We declare that there are no competing financial interests or personal relationships that might influence the work reported herein., (Copyright © 2024 Elsevier Ltd. All rights reserved.)- Published
- 2024
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