Article ; Online: Structural characterization of a homopolysaccharide produced by Weissella cibaria FMy 2-21-1 and its potential application as a green corrosion inhibiting film.
International journal of biological macromolecules
2022 Volume 212, Page(s) 193–201
Abstract: 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 ... ...
| Abstract | 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. |
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| MeSH term(s) | Corrosion ; Dextrans/chemistry ; Steel/chemistry ; Water ; Weissella/chemistry |
| Chemical Substances | Dextrans ; Water (059QF0KO0R) ; Steel (12597-69-2) |
| Language | English |
| Publishing date | 2022-05-18 |
| Publishing country | Netherlands |
| Document type | Journal Article |
| ZDB-ID | 282732-3 |
| ISSN | 1879-0003 ; 0141-8130 |
| ISSN (online) | 1879-0003 |
| ISSN | 0141-8130 |
| DOI | 10.1016/j.ijbiomac.2022.05.105 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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