{"id":13258,"date":"2023-09-14T11:31:21","date_gmt":"2023-09-14T09:31:21","guid":{"rendered":"https:\/\/www.toulouse-biotechnology-institute.fr\/?p=13258"},"modified":"2023-09-14T11:34:42","modified_gmt":"2023-09-14T09:34:42","slug":"la-vanilline-au-secours-des-membranes-de-filtration-pour-la-production-deau-potable","status":"publish","type":"post","link":"https:\/\/www.toulouse-biotechnology-institute.fr\/en\/la-vanilline-au-secours-des-membranes-de-filtration-pour-la-production-deau-potable\/","title":{"rendered":"Vanillin to the rescue of filtration membranes for drinking water production"},"content":{"rendered":"
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The formation of bacterial films is a recurring problem for water filtration systems, especially as existing solutions to get rid of them, derived from the shipbuilding industry, make the water unfit for consumption. Researchers at the Laboratoire de G\u00e9nie Chimique and the Toulouse Biotechnology Institute have discovered that vanillin limits the adhesion of some of the species involved. Published in the Journal of Membrane Science, the scientists successfully coated vanillin onto the surface of filtration membranes.<\/p>\n\n\n\n

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Biofouling is a phenomenon best known for affecting the hulls of boats, which the accumulation of bacterial biofilm damages if left untreated. It also threatens water filtration systems by colonizing their membranes, accelerating their ageing process. While many antibiofouling solutions are available to the marine industry, their composition often makes them incompatible with equipment designed to supply drinking water. Researchers at the Laboratoire de G\u00e9nie Chimique (LGC, CNRS\/Toulouse INP\/Universit\u00e9 Toulouse III - Paul Sabatier) and the Toulouse Biotechnology Institute (TBI, CNRS\/INRAE\/INSA Toulouse) have discovered that vanillin, the main molecule giving vanilla its aroma, is an excellent candidate for a bioinspired, biodegradable and non-toxic antibiofouling coating. They have also successfully integrated vanillin into membranes. Vanillin is already industrially produced, making it an ideal candidate for large-scale water filtration systems, as well as being inexpensive.<\/p>\n

The formation of a bacterial biofilm requires quorum sensing, i.e. the ability of bacteria to communicate with each other, via molecular inducers, in order to know whether there are enough of them to start producing biofilm. It was already known that vanillin could block quorum sensing of certain microorganisms, but this study, published in Journal of Membrane Science, is the first to prove its efficacy at different stages of biofouling establishment, from bacterial adhesion to the surface to the production of microbial extracellular polymers. Vanillin is deposited directly on the surface of filtration membranes during filtration. Using atomic force microscopy and epifluorescence microscopy, the team demonstrated that surfaces treated in this way reduced bacterial coverage by up to 50%. Following this success with scattered bacteria, the co-authors are now working on the scale of entire biofilms.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\tMinimizing bacterial adhesion on membrane: Multiscale characterization of surface modifications\nAbigail Burato Rosales, Nad\u00e8ge Durban-Benizio, Xuan Loc Nguyen, Vincent Bouvier, Cl\u00e9mentine Lamo, Irem Demir-Yilmaz, Christel Causserand, C\u00e9cile Formosa-Dague, Cl\u00e9mence Coetsier.\nJournal of Membrane Science, 684 (2023) 121867\nhttps:\/\/doi.org\/10.1016\/j.memsci.2023.121867\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\n\t\t\t\t\t\t\tContacts\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\tC\u00e9cile Formosa-Dague
\nCharg\u00e9e de recherche au CNRS, Toulouse Biotechnology Institute (CNRS\/INRAE\/INSA Toulouse)
\nformosa@insa-toulouse.fr

\nCl\u00e9mence Coetsier
\nMa\u00eetresse de conf\u00e9rences de l\u2019Universit\u00e9 Toulouse III - Paul Sabatier et chercheuse au Laboratoire de g\u00e9nie chimique (LGC, CNRS\/Toulouse INP\/Universit\u00e9 Toulouse III - Paul Sabatier)
clemence.coetsier@univ-tlse3.fr\n\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

La formation de films bact\u00e9riens est un probl\u00e8me r\u00e9current pour les syst\u00e8mes de filtration de l\u2019eau, d\u2019autant que les solutions existantes pour s\u2019en d\u00e9barrasser, issues de l\u2019industrie navale, rendent cette eau impropre \u00e0 la consommation. Des chercheuses et chercheurs du Laboratoire de g\u00e9nie chimique et du\u00a0Toulouse Biotechnology Institute\u00a0ont d\u00e9couvert que la vanilline limitait l\u2019adh\u00e9sion de […]<\/p>\n","protected":false},"author":1,"featured_media":13259,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[25],"class_list":["post-13258","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-resultat-scientifique","tag-equipe-tim"],"yoast_head":"\nLa vanilline au secours des membranes de filtration pour la production d\u2019eau potable | TBI, Toulouse Biotechnology Institute<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.toulouse-biotechnology-institute.fr\/en\/la-vanilline-au-secours-des-membranes-de-filtration-pour-la-production-deau-potable\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La vanilline au secours des membranes de filtration pour la production d\u2019eau potable | TBI, Toulouse Biotechnology Institute\" \/>\n<meta property=\"og:description\" content=\"La formation de films bact\u00e9riens est un probl\u00e8me r\u00e9current pour les syst\u00e8mes de filtration de l\u2019eau, d\u2019autant que les solutions existantes pour s\u2019en d\u00e9barrasser, issues de l\u2019industrie navale, rendent cette eau impropre \u00e0 la consommation. Des chercheuses et chercheurs du Laboratoire de g\u00e9nie chimique et du\u00a0Toulouse Biotechnology Institute\u00a0ont d\u00e9couvert que la vanilline limitait l\u2019adh\u00e9sion de […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.toulouse-biotechnology-institute.fr\/en\/la-vanilline-au-secours-des-membranes-de-filtration-pour-la-production-deau-potable\/\" \/>\n<meta property=\"og:site_name\" content=\"TBI, Toulouse Biotechnology Institute\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/TBI-Toulouse-Biotechnology-Institute-Bio-Chemical-Engineering-360428497952306\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-14T09:31:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-09-14T09:34:42+00:00\" \/>\n<meta property=\"og:image\" 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