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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/69276

    Título
    Structural characterization of a homopolysaccharide produced by Weissella cibaria FMy 2-21-1 and its potential application as a green corrosion inhibiting film
    Autor
    Lobo, René Emanuel
    Orrillo, Patricio Andrés
    Ribotta, Susana Beatriz
    Font de Valdez, Graciela
    Santos García, María MercedesAutoridad UVA Orcid
    Rodríguez Cabello, José CarlosAutoridad UVA Orcid
    Torino, María Inés
    Año del Documento
    2024
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    International Journal of Biological Macromolecules, Julio 2022, vol. 212. p. 193-201
    Zusammenfassung
    Steel corrosion is a global issue that affects safety and the economy. Currently, the homopolysaccharide (HoPS) structure of a novel lactic acid bacterium (LAB) is under study, as well as its application as a green corrosion inhibitor. Weissella cibaria FMy 2-21-1 is a LAB strain capable of producing HoPS in sucrose enriched media. The isolated and purified HoPS was characterized by different spectroscopic analyses as a linear α-1,6 dextran adopting a random coil conformation, with high molecular weight and extended size in water. The polysaccharide showed a semi-crystalline organization, which is a requirement for film formation. Its biocoating showed a grainy network structure, with a slightly lesser hydrophobic role in the aqueous environment than in the ionic one. The electrochemical measurements of the steel-HoPS coating showed that the biopolymer layer acts as an anodic-type corrosion inhibitor, with high resistance to corrosion by water and with chloride ions which prevent pitting, a corrosion process typical of bare steel. Few reports have cited the application of LAB HoPS as corrosive coating inhibitors. This work is the first to explore the influence of a structurally characterized dextran from Weissella cibaria strain as a potential steel corrosion inhibitor in ionic environments.
    Materias (normalizadas)
    Corrosión
    Materias Unesco
    23 Química
    32 Ciencias Médicas
    Palabras Clave
    HoPS structure
    Biocoating
    Corrosion inhibitor
    ISSN
    0141-8130
    Revisión por pares
    SI
    DOI
    10.1016/j.ijbiomac.2022.05.105
    Patrocinador
    We thank Dr. Mozzi for providing the Weisella strain and the following fundings: PICT 1705 (ANPCyT–FONCyT, Argentina), PID2019-110709RB-100, RTI2018-096320-B-C22, RED2018-102417-T (Spanish Government), VA317P18, Infrared2018-UVA06 (Junta de Castilla y Le´on), 0624_2IQBIONEURO_6_E (Interreg V España Portugal POCTEP) and Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y Leon
    Version del Editor
    https://www.sciencedirect.com/science/article/pii/S0141813022010790
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/69276
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
    Aparece en las colecciones
    • BIOFORGE - Artículos de revista [89]
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    Dateien zu dieser Ressource
    Nombre:
    Structural characterization of a homopolysaccharide .pdf
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