Characterization of two novel strains of Pseudomonas aeruginosa on biodegradation of crude oil and its enzyme activities

Muthukumar, Balakrishnan; Salhi, M.S. Al; Narenkumar, Jayaraman; Devanesan, Sandhanasamy; TentuNageswaraRao,; Kim, Woong; Rajasekar, Aruliah

doi:10.1016/j.envpol.2022.119223

Cited by 56 publications

(20 citation statements)

References 51 publications

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“…Biosurfactants are organic, surface-active amphiphilic compounds that contain both hydrophobic and hydrophilic moieties, produced mainly by diferent microorganisms (bacteria, yeast, or fungi) on cell surfaces or can be secreted extracellularly [1,2]. Tey could accumulate between fuid phases and help in reducing the surface and interfacial tensions, which will make them potential candidates for boost oil recovery, biodegradation, and bioremediation [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Optimization and Chemical Characterization of Biosurfactant Produced from a Novel Pseudomonas guguanensis Strain Iraqi ZG.K.M

Faisal

Mahdi

Alobaidi

2023

International Journal of Microbiology

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Microbial surfactants are widely used in medical, pharmaceutical, agricultural, industrial, food, and cosmetics applications. In the present study, 85 indigenous bacteria were isolated from petroleum-contaminated soils of the Al Dourah refinery, electric power station, and electric generators in Baghdad, Iraq. Twenty nine isolates gave positive results in both blood agar and blue agar medium and were secondarily screened. One isolate was selected as a potent biosurfactant producer and molecularly identified and recorded in the NCBI GenBank nucleotide sequence database as Pseudomonas guguanensis strain Iraqi ZG.K.M. In optimized conditions, this strain can produce about 3.01 g/l of biosurfactant. The product could reduce the surface tension from 72 to 38 ± 0.33 mN/m and have E24% of 52 ± 0.33%. This biosurfactant was preliminarily specified to be a glycolipid and characterized as a rhamnolipid with anionic nature, usually to be a monorhamnolipid as evident from TLC, FTIR, and GC-MS analyses.

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Section: Introductionmentioning

confidence: 99%

Optimization and Chemical Characterization of Biosurfactant Produced from a Novel Pseudomonas guguanensis Strain Iraqi ZG.K.M

Faisal

Mahdi

Alobaidi

2023

International Journal of Microbiology

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“…In the petroleum industry, microbial degradation commonly used to storage tanks cleaning, wellhead wax cleaning and wax prevention, or to enhance recovery of dead reservoirs. During microbial degradation, the bacteria can degrade long chain hydrocarbons to short linear alkanes of crude oil, which essentially change the physicochemical properties of crude oil, especially the viscosity, and improve the fluidity of residual oil, thus the oil becomes easier to be cleaned or extracted ( Muthukumar et al., 2022 ). Crude oil, on the other hand, is usually categorized into four major groups: saturated hydrocarbons, aromatic hydrocarbons, asphaltenes and resins ( Varjani, 2017 ).…”

Section: Meor Mechanismsmentioning

confidence: 99%

Research advances of microbial enhanced oil recovery

Xiu²,

Yu³

et al. 2022

Heliyon

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“…Crude oil is one of the essential compounds in both the energy and chemical industries (Li et al, 2016). However, crude oil leakage caused by natural or human factors results in serious environmental pollution and sustainability problems worldwide (Gu and Wang, 2015;Muthukumar et al, 2022). Most of the components in crude oil can be stored and bioaccumulated in animals and humans, causing serious health issues (Elumalai et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Microbial community succession during crude oil-degrading bacterial enrichment cultivation and construction of a degrading consortium

Liu

et al. 2022

Front. Microbiol.

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Microbial community succession during the enrichment of crude-oil-degrading bacteria was analyzed using Illumina high-throughput sequencing to guide bacterial isolation and construction of a bacterial consortium. Community change occurred in 6 days; the most abundant phylum changed from Proteobacteria to Actinobacteria; the most abundant genera were Dietzia and unspecified_Idiomarinaceae. Two crude oil-degrading strains, Rhodococcus sp. OS62-1 and Dietzia sp. OS33, and one weak-crude-oil-degrading strain, Pseudomonas sp. P35, were isolated. A consortium comprising Rhodococcus sp. OS62-1 and Pseudomonas sp. P35 showed the highest crude-oil-degrading efficiency, reaching 85.72 ± 3.21% within 7 days, over a wide pH range (5–11) and salinity (0–80 g·L−1). Consumption of saturated hydrocarbons, aromatic hydrocarbons, and resins was greater by the consortium than by a single strain, as was degradation of short-chain-alkanes (C13–C17) according to gas-chromatography. The bacterial consortium provides technical support for bioremediation of crude oil pollution.

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Characterization of two novel strains of Pseudomonas aeruginosa on biodegradation of crude oil and its enzyme activities

Cited by 56 publications

References 51 publications

Optimization and Chemical Characterization of Biosurfactant Produced from a Novel Pseudomonas guguanensis Strain Iraqi ZG.K.M

Optimization and Chemical Characterization of Biosurfactant Produced from a Novel Pseudomonas guguanensis Strain Iraqi ZG.K.M

Research advances of microbial enhanced oil recovery

Microbial community succession during crude oil-degrading bacterial enrichment cultivation and construction of a degrading consortium

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