Biokorosi Dan Teknologi Pencegahannya Di Industri  Minyak Dan Gas

Royani, Ahmad; Hanafi, Muhammad Amin; Julistiono, Heddy; Manaf, Azwar

doi:10.14203/metalurgi.v36i3.608

Cited by 2 publications

(3 citation statements)

References 64 publications

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“…Some efforts to reduce the use of chemical-based compounds to prevent metal corrosion have been carried out globally, to avoid further exposure to these hazardous compounds. These include the application of more environmentally friendly organic biocides (Royani et al 2022). According to Faiq and Mokhtar (2022), organic biocides were very effective to decrease the rate of the pitting corrosion process.…”

Section: Resultsmentioning

confidence: 99%

“…The such compound acts through physical and chemical absorption (Tao et al 2020). The development of MIC mitigation technology including the use of environmentally friendly biocides, such as antibacterial agents, paint coatings, and biocontrol approach to replace conventional biocides, has also been proposed in the last two decades (Omar et al 2021;Royani et al 2022).…”

Section: Introductionmentioning

confidence: 99%

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Potential of sodium dichromate and sodium silicate to control in vitro growth of Bacillus cereus, a metal corrosion-causing bacterium

Ciawi¹,

INABUY²,

TERIYANI³

et al. 2023

Biodiversitas

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Abstract. Ciawi Y, Inabuy FS, Teriyani NM, Ramona Y. 2023. Potential of sodium dichromate and sodium silicate to control in vitro growth of Bacillus cereus, a metal corrosion-causing bacterium. Biodiversitas 24: 1530-1537. The maintenance cost of metal-based objects in industrial and construction sectors has been found to significantly increase due to corrosion. Most corrosion is caused by metal oxidation, and about 2% of this corrosion is induced by microbial activity (MIC). The main objectives of this research were to isolate, and identify corrosion-causing bacteria, and to find out the optimum concentration of sodium dichromate and sodium silicate to control their growth in vitro. These compounds have been used to protect the metal surface from corrosion caused by non-microbial-induced corrosion. Three different bacterial isolates were obtained in this study and the black colony (the predominant isolate) was further investigated in the determination of their optimum inhibitory concentrations. Application of sodium dichromate and sodium silicate at the rates of 0.1% w/v and 2% w/v, respectively were found to be optimum to inhibit the in vitro growth of this black bacterial isolate in our study. The predominant isolate found in our study was identified as Bacillus cereus, following the alignment of its 16s rDNA sequence with those deposited at the GenBank (NCBI). Additionally, Enterobacter asburiae was also found on the surface of corroded water tanks.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Potential of sodium dichromate and sodium silicate to control in vitro growth of Bacillus cereus, a metal corrosion-causing bacterium

Ciawi¹,

INABUY²,

TERIYANI³

et al. 2023

Biodiversitas

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show abstract

“…It can therefore be inferred that a concentration of 96% or untested concentrations may prove to be effective. Also, the difference in preparation of the extracts may account for the difference in results as well [35].…”

Section: Resultsmentioning

confidence: 99%

The Effect of Morinda citrifolia Ethanolic Extract against Malassezia globosa Obtained from the Scalp of Individuals between the Ages of 18-24 in Georgetown, Guyana

Hamilton,

Jaikishun

2023

JAMB

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Dandruff, a common scalp condition affecting 50% of the world’s population, is mainly caused by the fungus M. globosa. In this study, the antifungal effect of M. citrifolia, commonly known as noni, was tested against M. globosa. M. citrifolia fruit, leaf, and stem contain phytochemicals including alkaloids, phenols, flavonoids, and glycosides. Extracts of the three plant parts were obtained by maceration method using ethanol, and prepared in concentrations of 100%, 75%, 50% and 25%. The scalps of 6 individuals were swabbed to obtain a sample of M. globosa. The susceptibility of M. globosa to M. citrifolia extracts was tested in triplicate using the disc diffusion method, and a measure of the extent of susceptibility was ascertained by the size of the inhibition zones. It was found that of the 3 extracts, noni fruit showed the highest inhibitory effect with 20/48 discs having inhibition zones, noni stem showed moderate inhibition with 12/48 inhibition zones, while noni leaf exhibited no inhibition zones, indicating its lack of inhibitory effect against M. globosa. Notably, noni fruit at 100% and 75% concentrations proved to be most effective against M. globosa, and at 25% concentrations, noni stem was most effective. However, statistical analysis using both ANOVA and Kruskal Wallis tests indicated that the observed data was insignificant since the p-values were > 0.05. It can therefore be concluded that noni fruit, leaf, and stem extracts have little to no significant inhibitory effect on the growth of M. globosa, notwithstanding, a change in various experimental factors including agar type and extract preparation may prove otherwise.

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Biokorosi Dan Teknologi Pencegahannya Di Industri Minyak Dan Gas

Cited by 2 publications

References 64 publications

Potential of sodium dichromate and sodium silicate to control in vitro growth of Bacillus cereus, a metal corrosion-causing bacterium

Potential of sodium dichromate and sodium silicate to control in vitro growth of Bacillus cereus, a metal corrosion-causing bacterium

The Effect of Morinda citrifolia Ethanolic Extract against Malassezia globosa Obtained from the Scalp of Individuals between the Ages of 18-24 in Georgetown, Guyana

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