Preparation and antimicrobial activity of polyethylene composite films with silver exchanged zeolite-Y
| dc.contributor.author | Boschetto, Daiane Lúcia | |
| dc.contributor.author | Lerin, Lindomar | |
| dc.contributor.author | Cansian, Rogério | |
| dc.contributor.author | Pergher, Sibele Berenice Castellã | |
| dc.contributor.author | Luccio, Marco Di | |
| dc.date.accessioned | 2020-06-09T01:32:15Z | |
| dc.date.available | 2020-06-09T01:32:15Z | |
| dc.date.issued | 2012-09-15 | |
| dc.description.resumo | This study aimed at the preparation of antimicrobial films based on silver (Ag) exchanged zeolite Y. The zeolite was exchanged to a final concentration of 5% silver and was characterized by different methods. The inclusion of silver in the zeolite did not change its structure. The antimicrobial activity of the Ag-exchanged zeolite was assessed on Escherichia coli, by the minimum inhibitory concentration method (MIC). The zeolite with 5% Ag showed effective antimicrobial activity. The MIC was 0.5 mg zeolite/mL, which corresponds to 25 μg Ag/mL. The leaching of Ag ions to the medium was assessed by AAS, which showed that 56% of the silver ions was leached from the zeolite to the medium. The polyethylene films with the Ag–zeolite were prepared by the methods of wet-casting and thermal pressing of polyethylene beads mixed with Ag–zeolite, varying the zeolite content from 1 to 10 wt%. The inclusion of the Ag–zeolite in the film did not change the film thermal degradation. The films that showed antimicrobial activity on E. coli were those prepared with 5% zeolite containing 5% silver, showing the potential application of such films in food preservation and safety. | pt_BR |
| dc.identifier.citation | BOSCHETTO, Daiane Lúcia; LERIN, Lindomar; CANSIAN, Rogério; PERGHER, Sibele Berenice Castellã; LUCCIO, Marco di. Preparation and antimicrobial activity of polyethylene composite films with silver exchanged zeolite-Y. Chemical Engineering Journal, [s. l.], v. 204-206, p. 210-216, set. 2012. ISSN 1385-8947. DOI http://dx.doi.org/10.1016/j.cej.2012.07.111. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S1385894712010133?via%3Dihub#!. Acesso em: 08 jun. 2020. | pt_BR |
| dc.identifier.doi | 10.1016/j.cej.2012.07.111 | |
| dc.identifier.issn | 1385-8947 | |
| dc.identifier.uri | https://repositorio.ufrn.br/jspui/handle/123456789/29185 | |
| dc.language | en | pt_BR |
| dc.publisher | Elsevier | pt_BR |
| dc.subject | Zeolite | pt_BR |
| dc.subject | Silver | pt_BR |
| dc.subject | Antimicrobial packaging | pt_BR |
| dc.subject | Active packaging | pt_BR |
| dc.subject | Polymer film | pt_BR |
| dc.title | Preparation and antimicrobial activity of polyethylene composite films with silver exchanged zeolite-Y | pt_BR |
| dc.type | article | pt_BR |
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