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Antimicrobial nanostructured starch based films for packaging.
Carbohydr Polym. 2015 Sep 20; 129:127-34.CP

Abstract

Montmorillonite modified with a quaternary ammonium salt C30B/starch nanocomposite (C30B/ST-NC), silver nanoparticles/starch nanocomposite (Ag-NPs/ST-NC) and both silver nanoparticles/C30B/starch nanocomposites (Ag-NPs/C30B/ST-NC) films were produced. The nanoclay (C30B) was dispersed in a starch solution using an ultrasonic probe. Different concentrations of Ag-NPs (0.3, 0.5, 0.8 and 1.0mM) were synthesized directly in starch and in clay/starch solutions via chemical reduction method. Dispersion of C30B silicate layers and Ag-NPs in ST films characterized by X-ray and scanning electron microscopy showed that the presence of Ag-NPs enhanced clay dispersion. Color and opacity measurements, barrier properties (water vapor and oxygen permeabilities), dynamic mechanical analysis and contact angle were evaluated and related with the incorporation of C30B and Ag-NPs. Films presented antimicrobial activity against Staphylococcus aureus, Escherichia coli and Candida albicans without significant differences between Ag-NPs concentrations. The migration of components from the nanostructured starch films, assessed by food contact tests, was minor and under the legal limits. These results indicated that the starch films incorporated with C30B and Ag-NPs have potential to be used as packaging nanostructured material.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Abreu AS
Institute of Polymers and Composites (IPC) and Institute of Nanostructures, Nanomodelling and Nanofabrication (I3N), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal. Electronic address: anasofiaabreu@dep.uminho.pt.
Oliveira M
Institute of Polymers and Composites (IPC) and Institute of Nanostructures, Nanomodelling and Nanofabrication (I3N), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal.
de Sá A
Institute of Polymers and Composites (IPC) and Institute of Nanostructures, Nanomodelling and Nanofabrication (I3N), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal.
Rodrigues RM
Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
Cerqueira MA
Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
Vicente AA
Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
Machado AV
Institute of Polymers and Composites (IPC) and Institute of Nanostructures, Nanomodelling and Nanofabrication (I3N), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal.

MeSH

Aluminum SilicatesAnti-Infective AgentsCandida albicansClayColorElastic ModulusEscherichia coliFoodFood PackagingMetal NanoparticlesMicrobial Sensitivity TestsNanostructuresOxygenPermeabilitySilverStaphylococcus aureusStarchSteamWaterX-Ray Diffraction

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26050897

Citation

Abreu, Ana S., et al. "Antimicrobial Nanostructured Starch Based Films for Packaging." Carbohydrate Polymers, vol. 129, 2015, pp. 127-34.
Abreu AS, Oliveira M, de Sá A, et al. Antimicrobial nanostructured starch based films for packaging. Carbohydr Polym. 2015;129:127-34.
Abreu, A. S., Oliveira, M., de Sá, A., Rodrigues, R. M., Cerqueira, M. A., Vicente, A. A., & Machado, A. V. (2015). Antimicrobial nanostructured starch based films for packaging. Carbohydrate Polymers, 129, 127-34. https://doi.org/10.1016/j.carbpol.2015.04.021
Abreu AS, et al. Antimicrobial Nanostructured Starch Based Films for Packaging. Carbohydr Polym. 2015 Sep 20;129:127-34. PubMed PMID: 26050897.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Antimicrobial nanostructured starch based films for packaging. AU - Abreu,Ana S, AU - Oliveira,M, AU - de Sá,Arsénio, AU - Rodrigues,Rui M, AU - Cerqueira,Miguel A, AU - Vicente,António A, AU - Machado,A V, Y1 - 2015/04/22/ PY - 2014/12/09/received PY - 2015/03/05/revised PY - 2015/04/08/accepted PY - 2015/6/9/entrez PY - 2015/6/9/pubmed PY - 2016/3/15/medline KW - Antimicrobial activity KW - Food packaging KW - Nanostructured films KW - Organoclay KW - Silver nanoparticles KW - Starch SP - 127 EP - 34 JF - Carbohydrate polymers JO - Carbohydr Polym VL - 129 N2 - Montmorillonite modified with a quaternary ammonium salt C30B/starch nanocomposite (C30B/ST-NC), silver nanoparticles/starch nanocomposite (Ag-NPs/ST-NC) and both silver nanoparticles/C30B/starch nanocomposites (Ag-NPs/C30B/ST-NC) films were produced. The nanoclay (C30B) was dispersed in a starch solution using an ultrasonic probe. Different concentrations of Ag-NPs (0.3, 0.5, 0.8 and 1.0mM) were synthesized directly in starch and in clay/starch solutions via chemical reduction method. Dispersion of C30B silicate layers and Ag-NPs in ST films characterized by X-ray and scanning electron microscopy showed that the presence of Ag-NPs enhanced clay dispersion. Color and opacity measurements, barrier properties (water vapor and oxygen permeabilities), dynamic mechanical analysis and contact angle were evaluated and related with the incorporation of C30B and Ag-NPs. Films presented antimicrobial activity against Staphylococcus aureus, Escherichia coli and Candida albicans without significant differences between Ag-NPs concentrations. The migration of components from the nanostructured starch films, assessed by food contact tests, was minor and under the legal limits. These results indicated that the starch films incorporated with C30B and Ag-NPs have potential to be used as packaging nanostructured material. SN - 1879-1344 UR - https://www.unboundmedicine.com/medline/citation/26050897/Antimicrobial_nanostructured_starch_based_films_for_packaging_ DB - PRIME DP - Unbound Medicine ER -