Influence of axenic culture of Bacillus clausii and mixed culture on biofilm formation, carbon steel corrosion, and methyl ester degradation in B30 storage tank system

Aslan, Christian; Aulia, Nadia Ijkri; Devianto, Hary; Harimawan, Ardiyan

doi:10.1016/j.jece.2022.108013

Cited by 10 publications

(1 citation statement)

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“…The microorganism identified in the sequence obtained was Bacillus clausii with 96% identity for the sequenced fragment. It has been found that some strains of Bacillus clausii can grow in anaerobic conditions [42] and have been isolated from various environments, usually found in soils, marine soils [43,44], and biofilms of corroding environments [45]. Although this was the only identified microorganism, the consortium was made up of various types of microorganisms, determining that a highly reducing environment requires protection for the consortium.…”

Section: Isolation and Identificationmentioning

confidence: 99%

Exploration of In Vitro Voltage Production by a Consortium of Chemolithotrophic Microorganisms Using Galena (PbS) as a Sulphur Source

Gaucin Gutiérrez,

Rojas-Contreras,

Zazueta-Álvarez

et al. 2024

Clean Technol.

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Sulphur plays a fundamental role in the biological processes of chemolithotrophic microorganisms. Due to the redox characteristics of sulphur, microorganisms use it for metabolic processes. Such is the case of the dissimilatory processes in the anaerobic respiration of reducing microorganisms. The production of electrical energy from the metabolism of native microorganisms using sulphur as substrate from inorganic mineral sources in the form of Galena (PbS) was achieved using MR mineral medium with 15% (w/v) of PbS mineral concentrate. At 400 h of growth, the highest voltage produced in an experimental unit under anaerobic conditions was 644 mV. The inoculum was composed of microorganisms with spiral morphology, and at the final stages of energy production, the only microorganism identified was Bacillus clausii. This microorganism has not been reported in bioelectrochemical systems, but it has been reported to be present in corrosive environments and reducing anoxic environments.

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