High-Throughput Fabrication of Antibacterial Starch/PBAT/AgNPs@SiO2 Films for Food Packaging

In this current work, antimicrobial films based on starch, poly(butylene adipate-co-terephthalate) (PBAT), and a commercially available AgNPs@SiO2 antibacterial composite particle product were produced by using a melt blending and blowing technique. The effe...

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Autores principales:	Shengxue Zhou, Xiaosong Zhai, Rui Zhang, Wentao Wang, Loong-Tak Lim, Hanxue Hou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	starch PBAT antibacterial films high-throughput fabrication food packaging Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/8f5d79b58ab743058aad445409cf1064
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spelling	oai:doaj.org-article:8f5d79b58ab743058aad445409cf10642021-11-25T18:32:09ZHigh-Throughput Fabrication of Antibacterial Starch/PBAT/AgNPs@SiO<sub>2</sub> Films for Food Packaging10.3390/nano111130622079-4991https://doaj.org/article/8f5d79b58ab743058aad445409cf10642021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3062https://doaj.org/toc/2079-4991In this current work, antimicrobial films based on starch, poly(butylene adipate-<i>co</i>-terephthalate) (PBAT), and a commercially available AgNPs@SiO<sub>2</sub> antibacterial composite particle product were produced by using a melt blending and blowing technique. The effects of AgNPs@SiO<sub>2</sub> at various loadings (0, 1, 2, 3, and 4 wt%) on the physicochemical properties and antibacterial activities of starch/PBAT composite films were investigated. AgNPs@SiO<sub>2</sub> particles were more compatible with starch than PBAT, resulting in preferential distribution of AgNPs@SiO<sub>2</sub> in the starch phase. Infusion of starch/PBAT composite films with AgNPs@SiO<sub>2</sub> marginally improved mechanical and water vapor barrier properties, while surface hydrophobicity increased as compared with films without AgNPs@SiO<sub>2</sub>. The composite films displayed superior antibacterial activities against both Gram-positive (<i>Staphylococcus aureus</i>) and Gram-negative (<i>Escherichia coli</i>) bacteria. The sample loaded with 1 wt% AgNPs@SiO<sub>2</sub> (SPA-1) showed nearly 90% inhibition efficiency on the tested microorganisms. Furthermore, a preliminary study on peach and nectarine at 53% RH and 24 °C revealed that SPA-1 film inhibited microbial spoilage and extended the product shelf life as compared with SPA-0 and commercial LDPE packaging materials. The high-throughput production method and strong antibacterial activities of the starch/PBAT/AgNPs@SiO<sub>2</sub> composite films make them promising as antimicrobial packaging materials for commercial application.Shengxue ZhouXiaosong ZhaiRui ZhangWentao WangLoong-Tak LimHanxue HouMDPI AGarticlestarchPBATantibacterial filmshigh-throughput fabricationfood packagingChemistryQD1-999ENNanomaterials, Vol 11, Iss 3062, p 3062 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	starch PBAT antibacterial films high-throughput fabrication food packaging Chemistry QD1-999
spellingShingle	starch PBAT antibacterial films high-throughput fabrication food packaging Chemistry QD1-999 Shengxue Zhou Xiaosong Zhai Rui Zhang Wentao Wang Loong-Tak Lim Hanxue Hou High-Throughput Fabrication of Antibacterial Starch/PBAT/AgNPs@SiO<sub>2</sub> Films for Food Packaging
description	In this current work, antimicrobial films based on starch, poly(butylene adipate-<i>co</i>-terephthalate) (PBAT), and a commercially available AgNPs@SiO<sub>2</sub> antibacterial composite particle product were produced by using a melt blending and blowing technique. The effects of AgNPs@SiO<sub>2</sub> at various loadings (0, 1, 2, 3, and 4 wt%) on the physicochemical properties and antibacterial activities of starch/PBAT composite films were investigated. AgNPs@SiO<sub>2</sub> particles were more compatible with starch than PBAT, resulting in preferential distribution of AgNPs@SiO<sub>2</sub> in the starch phase. Infusion of starch/PBAT composite films with AgNPs@SiO<sub>2</sub> marginally improved mechanical and water vapor barrier properties, while surface hydrophobicity increased as compared with films without AgNPs@SiO<sub>2</sub>. The composite films displayed superior antibacterial activities against both Gram-positive (<i>Staphylococcus aureus</i>) and Gram-negative (<i>Escherichia coli</i>) bacteria. The sample loaded with 1 wt% AgNPs@SiO<sub>2</sub> (SPA-1) showed nearly 90% inhibition efficiency on the tested microorganisms. Furthermore, a preliminary study on peach and nectarine at 53% RH and 24 °C revealed that SPA-1 film inhibited microbial spoilage and extended the product shelf life as compared with SPA-0 and commercial LDPE packaging materials. The high-throughput production method and strong antibacterial activities of the starch/PBAT/AgNPs@SiO<sub>2</sub> composite films make them promising as antimicrobial packaging materials for commercial application.
format	article
author	Shengxue Zhou Xiaosong Zhai Rui Zhang Wentao Wang Loong-Tak Lim Hanxue Hou
author_facet	Shengxue Zhou Xiaosong Zhai Rui Zhang Wentao Wang Loong-Tak Lim Hanxue Hou
author_sort	Shengxue Zhou
title	High-Throughput Fabrication of Antibacterial Starch/PBAT/AgNPs@SiO<sub>2</sub> Films for Food Packaging
title_short	High-Throughput Fabrication of Antibacterial Starch/PBAT/AgNPs@SiO<sub>2</sub> Films for Food Packaging
title_full	High-Throughput Fabrication of Antibacterial Starch/PBAT/AgNPs@SiO<sub>2</sub> Films for Food Packaging
title_fullStr	High-Throughput Fabrication of Antibacterial Starch/PBAT/AgNPs@SiO<sub>2</sub> Films for Food Packaging
title_full_unstemmed	High-Throughput Fabrication of Antibacterial Starch/PBAT/AgNPs@SiO<sub>2</sub> Films for Food Packaging
title_sort	high-throughput fabrication of antibacterial starch/pbat/agnps@sio<sub>2</sub> films for food packaging
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8f5d79b58ab743058aad445409cf1064
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High-Throughput Fabrication of Antibacterial Starch/PBAT/AgNPs@SiO<sub>2</sub> Films for Food Packaging

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