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Article

Enzymatic Functionalization of Wood as an Antifouling Strategy against the Marine Bacterium Cobetia marina

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CINTECX, Department of Chemical Engineering, Campus Universitario as Lagoas-Marcosende, Universidade de Vigo, 36310 Vigo, Spain
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TECNALIA, Basque Research and Technology Alliance (BRTA), Area Anardi 5, 20730 Azpeitia, Spain
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Research Group of Bioengineering and Sustainable Processes, Department of Chemical Engineering, Edificio Fundición, Lagoas Marcosende s/n, University of Vigo, 36310 Vigo, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Ľuboš Krišťák, Roman Réh and Ivan Kubovský
Polymers 2021, 13(21), 3795; https://doi.org/10.3390/polym13213795
Received: 5 October 2021 / Revised: 28 October 2021 / Accepted: 29 October 2021 / Published: 2 November 2021
(This article belongs to the Special Issue New Challenges in Wood and Wood-Based Materials II)
The protection of wood in marine environments is a major challenge due to the high sensitivity of wood to both water and marine microorganisms. Besides, the environmental regulations are pushing the industry to develop novel effective and environmentally friendly treatments to protect wood in marine environments. The present study focused on the development of a new green methodology based on the laccase-assisted grafting of lauryl gallate (LG) onto wood to improve its marine antifouling properties. Initially, the enzymatic treatment conditions (laccase dose, time of reaction, LG concentration) and the effect of the wood specie (beech, pine, and eucalyptus) were assessed by water contact angle (WCA) measurements. The surface properties of the enzymatically modified wood veneers were assessed by X-ray photoelectron spectroscopy (XPS), Fourier transform-infrared spectroscopy (FTIR). Antifouling properties of the functionalized wood veneers against marine bacterium Cobetia marina were studied by scanning electron microscopy (SEM) and protein measurements. XPS and FTIR analysis suggested the stable grafting of LG onto the surface of wood veneers after laccase-assisted treatment. WCA measurements showed that the hydrophobicity of the wood veneers significantly increased after the enzymatic treatment. Protein measurements and SEM pictures showed that enzymatically-hydrophobized wood veneers modified the pattern of bacterial attachment and remarkably reduced the bacterium colonization. Thus, the results observed in the present study confirmed the potential efficiency of laccase-assisted treatments to improve the marine antifouling properties of wood. View Full-Text
Keywords: laccase; lauryl gallate; wood; Cobetia marina; antifouling laccase; lauryl gallate; wood; Cobetia marina; antifouling
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MDPI and ACS Style

Filgueira, D.; Bolaño, C.; Gouveia, S.; Moldes, D. Enzymatic Functionalization of Wood as an Antifouling Strategy against the Marine Bacterium Cobetia marina. Polymers 2021, 13, 3795. https://doi.org/10.3390/polym13213795

AMA Style

Filgueira D, Bolaño C, Gouveia S, Moldes D. Enzymatic Functionalization of Wood as an Antifouling Strategy against the Marine Bacterium Cobetia marina. Polymers. 2021; 13(21):3795. https://doi.org/10.3390/polym13213795

Chicago/Turabian Style

Filgueira, Daniel, Cristian Bolaño, Susana Gouveia, and Diego Moldes. 2021. "Enzymatic Functionalization of Wood as an Antifouling Strategy against the Marine Bacterium Cobetia marina" Polymers 13, no. 21: 3795. https://doi.org/10.3390/polym13213795

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