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Reduction of bacterial biofilm formation using marine natural antimicrobial peptides


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Doiron, Kim et Beaulieu, Lucie et St-Louis, Richard et Lemarchand, Karine (2018). Reduction of bacterial biofilm formation using marine natural antimicrobial peptides. Colloids and surfaces B: Biointerfaces, 167 . p. 524-530.

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There is an important need for the development of new “environmentally-friendly” antifouling molecules to replace toxic chemicals actually used to fight against marine biofouling. Marine biomass is a promising source of non-toxic antifouling products such as natural antimicrobial peptides produced by marine organisms. The aim of this study was to demonstrate the efficiency of antimicrobial peptides extracted from snow crab (SCAMPs) to reduce the formation of marine biofilms on immerged mild steel surfaces. Five antimicrobial peptides were found in the snow crab hydrolysate fraction used in this study. SCAMPs were demonstrated to interact with natural organic matter (NOM) during the formation of the conditioning film and to limit the marine biofilm development in terms of viability and bacterial structure. Natural SCAMPs could be considered as a potential alternative and non-toxic product to reduce biofouling, and as a consequence microbial induced corrosion on immerged surfaces. -- Keywords : Antimicrobial peptides ; Antifouling ; Bacterial diversity ; Conditioning film ; Marine biofilm.

Type de document : Article
Validation par les pairs : Oui
Information complémentaire : CC BY NC ND
Version du document déposé : Post-print (version corrigée et acceptée)
Départements et unités départementales : Institut des sciences de la mer de Rimouski (ISMER)
Déposé par : DIUQAR UQAR
Date de dépôt : 16 oct. 2020 14:38
Dernière modification : 01 févr. 2021 18:53

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