Durability Assessment of a Plasma-Polymerized Coating with Anti-Biofilm Activity against <i>L. monocytogenes</i> Subjected to Repeated Sanitization

Biofilm formation on food-contact surfaces is a matter of major concern causing food safety and spoilage issues to this sector. The aim of this study was to assess the durability of the anti-biofilm capacity of a plasma-polymerized coating composed of a base coating of (3-aminopropyl)triethoxysilane...

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Autores principales:	Ignacio Muro-Fraguas, Paula Fernández-Gómez, Rodolfo Múgica-Vidal, Ana Sainz-García, Elisa Sainz-García, Márcia Oliveira, Montserrat González-Raurich, María López, Beatriz Rojo-Bezares, Mercedes López, Fernando Alba-Elías
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	durability anti-biofilm plasma polymerization sanitization disinfectants food contact Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/744aa092a2cc45399ac838b27d74fb52
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spelling	oai:doaj.org-article:744aa092a2cc45399ac838b27d74fb522021-11-25T17:36:24ZDurability Assessment of a Plasma-Polymerized Coating with Anti-Biofilm Activity against <i>L. monocytogenes</i> Subjected to Repeated Sanitization10.3390/foods101128492304-8158https://doaj.org/article/744aa092a2cc45399ac838b27d74fb522021-11-01T00:00:00Zhttps://www.mdpi.com/2304-8158/10/11/2849https://doaj.org/toc/2304-8158Biofilm formation on food-contact surfaces is a matter of major concern causing food safety and spoilage issues to this sector. The aim of this study was to assess the durability of the anti-biofilm capacity of a plasma-polymerized coating composed of a base coating of (3-aminopropyl)triethoxysilane (APTES) and a functional coating of acrylic acid (AcAc). Coated and uncoated AISI 316 stainless steel (SS) plates were subjected to five sanitization cycles with sodium hypochlorite (0.05%) and peracetic acid (0.5%). The effectiveness of the coating for the inhibition of multi-strain <i>Listeria monocytogenes</i> biofilm formation was confirmed using a three-strain cocktail, which was grown on the SS plates at 12 °C for 6 days. Compared to the uncoated SS, relative biofilm productions of 14.6% on the non-sanitized coating, 27.9% on the coating after sanitization with sodium hypochlorite, and 82.3% on the coating after sanitization with peracetic acid were obtained. Morphological and physicochemical characterization of the coatings suggested that the greater anti-biofilm effectiveness after sanitization with sodium hypochlorite was due to the high pH of this solution, which caused a deprotonation of the carboxylic acid groups of the functional coating. This fact conferred it a strong hydrophilicity and negatively charged its surface, which was favorable for preventing bacterial attachment and biofilm formation.Ignacio Muro-FraguasPaula Fernández-GómezRodolfo Múgica-VidalAna Sainz-GarcíaElisa Sainz-GarcíaMárcia OliveiraMontserrat González-RaurichMaría LópezBeatriz Rojo-BezaresMercedes LópezFernando Alba-ElíasMDPI AGarticledurabilityanti-biofilmplasma polymerizationsanitizationdisinfectantsfood contactChemical technologyTP1-1185ENFoods, Vol 10, Iss 2849, p 2849 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	durability anti-biofilm plasma polymerization sanitization disinfectants food contact Chemical technology TP1-1185
spellingShingle	durability anti-biofilm plasma polymerization sanitization disinfectants food contact Chemical technology TP1-1185 Ignacio Muro-Fraguas Paula Fernández-Gómez Rodolfo Múgica-Vidal Ana Sainz-García Elisa Sainz-García Márcia Oliveira Montserrat González-Raurich María López Beatriz Rojo-Bezares Mercedes López Fernando Alba-Elías Durability Assessment of a Plasma-Polymerized Coating with Anti-Biofilm Activity against <i>L. monocytogenes</i> Subjected to Repeated Sanitization
description	Biofilm formation on food-contact surfaces is a matter of major concern causing food safety and spoilage issues to this sector. The aim of this study was to assess the durability of the anti-biofilm capacity of a plasma-polymerized coating composed of a base coating of (3-aminopropyl)triethoxysilane (APTES) and a functional coating of acrylic acid (AcAc). Coated and uncoated AISI 316 stainless steel (SS) plates were subjected to five sanitization cycles with sodium hypochlorite (0.05%) and peracetic acid (0.5%). The effectiveness of the coating for the inhibition of multi-strain <i>Listeria monocytogenes</i> biofilm formation was confirmed using a three-strain cocktail, which was grown on the SS plates at 12 °C for 6 days. Compared to the uncoated SS, relative biofilm productions of 14.6% on the non-sanitized coating, 27.9% on the coating after sanitization with sodium hypochlorite, and 82.3% on the coating after sanitization with peracetic acid were obtained. Morphological and physicochemical characterization of the coatings suggested that the greater anti-biofilm effectiveness after sanitization with sodium hypochlorite was due to the high pH of this solution, which caused a deprotonation of the carboxylic acid groups of the functional coating. This fact conferred it a strong hydrophilicity and negatively charged its surface, which was favorable for preventing bacterial attachment and biofilm formation.
format	article
author	Ignacio Muro-Fraguas Paula Fernández-Gómez Rodolfo Múgica-Vidal Ana Sainz-García Elisa Sainz-García Márcia Oliveira Montserrat González-Raurich María López Beatriz Rojo-Bezares Mercedes López Fernando Alba-Elías
author_facet	Ignacio Muro-Fraguas Paula Fernández-Gómez Rodolfo Múgica-Vidal Ana Sainz-García Elisa Sainz-García Márcia Oliveira Montserrat González-Raurich María López Beatriz Rojo-Bezares Mercedes López Fernando Alba-Elías
author_sort	Ignacio Muro-Fraguas
title	Durability Assessment of a Plasma-Polymerized Coating with Anti-Biofilm Activity against <i>L. monocytogenes</i> Subjected to Repeated Sanitization
title_short	Durability Assessment of a Plasma-Polymerized Coating with Anti-Biofilm Activity against <i>L. monocytogenes</i> Subjected to Repeated Sanitization
title_full	Durability Assessment of a Plasma-Polymerized Coating with Anti-Biofilm Activity against <i>L. monocytogenes</i> Subjected to Repeated Sanitization
title_fullStr	Durability Assessment of a Plasma-Polymerized Coating with Anti-Biofilm Activity against <i>L. monocytogenes</i> Subjected to Repeated Sanitization
title_full_unstemmed	Durability Assessment of a Plasma-Polymerized Coating with Anti-Biofilm Activity against <i>L. monocytogenes</i> Subjected to Repeated Sanitization
title_sort	durability assessment of a plasma-polymerized coating with anti-biofilm activity against <i>l. monocytogenes</i> subjected to repeated sanitization
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/744aa092a2cc45399ac838b27d74fb52
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Durability Assessment of a Plasma-Polymerized Coating with Anti-Biofilm Activity against <i>L. monocytogenes</i> Subjected to Repeated Sanitization

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