RT info:eu-repo/semantics/article
T1 Structural characterization of a homopolysaccharide produced by Weissella cibaria FMy 2-21-1 and its potential application as a green corrosion inhibiting film
A1 Lobo, René Emanuel
A1 Orrillo, Patricio Andrés
A1 Ribotta, Susana Beatriz
A1 Font de Valdez, Graciela
A1 Santos García, María Mercedes
A1 Rodríguez Cabello, José Carlos
A1 Torino, María Inés
K1 Corrosión
K1 HoPS structure
K1 Biocoating
K1 Corrosion inhibitor
K1 23 Química
K1 32 Ciencias Médicas
AB 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.
PB Elsevier
SN 0141-8130
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/69276
UL https://uvadoc.uva.es/handle/10324/69276
LA eng
NO International Journal of Biological Macromolecules, Julio 2022, vol. 212. p. 193-201
NO Producción Científica
DS UVaDOC
RD 22-dic-2024