Journal
BIOELECTROCHEMISTRY
Volume 128, Issue -, Pages 193-203Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.bioelechem.2019.04.006
Keywords
304L stainless steel; Biofilm; Microbiologically influenced corrosion; Pseudomonas aeruginosa; Green inhibitor
Funding
- National Natural Science Foundation of China [U1660118, 51871050]
- Fundamental Research Funds for the Central Universities of Ministry of Education of China [N180205021]
- National Environmental Corrosion Platform (NECP) of China
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The mitigation of microbiologically influenced corrosion (MIC) of 304L stainless steel (SS) against Pseudomonas aeruginosa by a Salvia officinalis extract was investigated using electrochemical and surface analysis techniques. The extract was characterized by HPLC-Q-TOF-MS and its antibiofilm property was evaluated. The data revealed the presence of well-known antimicrobial and anticorrosion compounds in the extract. The S. officinalis extract was found effective in preventing biofilm formation and inhibiting mature biofilm. Electrochemical results indicated that P. aeruginosa accelerated the MIC of 304L SS, while the extract was found to prevent the MIC with an inhibition efficiency of 97.5 +/- 1.5%. This was attributed to the formation of a protective film by the adsorption of some compounds from the extract on the 304L SS surface. (C) 2019 Elsevier B.V. All rights reserved.
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