Enzymatic Approach in Microbial-Influenced Corrosion: A Review Based on Stainless Steels in Natural Waters

Abstract

The electrochemical behavior of stainless steels (SS) in natural waters is characterized by the ennoblement of their free corrosion potential (E(corr)). This phenomenon depends strongly on the settlement of biofilms on SS surfaces. Many hypotheses have been proposed to explain the biofilm action, in particular the enzymatic catalysis plays an important role by shifting the cathodic and/or anodic processes. However, there are still only few studies relating the use of purified enzymes. In contrast with bacteria-associated corrosion, the direct influence of enzymes is still poorly documented. The aim of this review is to show the benefits of the enzymatic approach in the study of biocorrosion. Indeed, enzymatic systems may constitute convenient models to mimic microbial influenced corrosion and to evaluate the behavior of metallic materials in natural waters.

Biocorrosion control: Current strategies and promising alternatives

“…All known manganese oxidising bacteria are aerobes which form manganese oxides within the cell envelop or extracellularly (Landoulsi et al, 2008). Many studies have established a relationship between the deposition of manganese oxides/hydroxides and the corrosion of stainless steels in natural waters (Landoulsi et al, 2008).…”

“…Many studies have established a relationship between the deposition of manganese oxides/hydroxides and the corrosion of stainless steels in natural waters (Landoulsi et al, 2008). The deposition of these manganese accumulations were attributed to the presence of Mn oxidising chemolithotrophic bacteria, such as Leptothrix and Manganese oxidisers are categorised into three groups: (a) Those that are involved in the oxidation of dissolved Mn 2+ ; (b) Those that are involved in the oxidation of Mn 2+ bound to solids; and (c) Those that are involved in the oxidation of dissolved Mn 2+ by the metabolic H 2 O 2 using catalase (Rajasekar et al, 2007).…”

Electrochemical Behaviour of AISI 304 Stainless Steel Immersed in Mixtures Consisting by Biocide and Fungal Suspensions

“…The corrosion is the destruction or the deterioration of metallic materials by direct chemical, electrochemical or biochemical reactions with different environments (Landoulsi et al, 2008;Osarolube et al, 2008). The corrosion processes are a very broad and complex phenomenon which can be uniform (e.g.…”

“…Due to this requirement, the metallic surfaces of the equipments used in bioprocessing inevitably interact with electrolyte environments that are exposed to washing and disinfecting solutions with or without microorganisms through on electrochemical mechanism (Landoulsi et al, 2008;Osarolube et al, 2008). Recently the electrochemical behaviour of stainless steel surfaces have become interested to the many researchers (Hiromoto & Hanawa, 2006;Stoica et al 2010a).…”

Role of Bacterial Plasmid on Biofilm Formation and Its Influence on Corrosion of Engineering Materials

“…Biofilm is a complex of large quantity of EPS which have polysaccharides, proteins and lipids. This biofilm leads to change of the local physical chemical alteration on the metal surface, causing the corrosion of metal [5][6][7]. A number of organisms, including bacteria, protozoa, fungi and other marine organisms, are capable of forming biofilm on the surface [8].…”