Bioprospecting of potential petroleum hydrocarbon degraders using bacterial strains isolated from soils around transformer installation areas

Torimiro, Nkem; Akhigbe, Godswill E.; Adebiyi, F. M.

doi:10.1080/15567036.2020.1815906

Cited by 3 publications

(3 citation statements)

References 36 publications

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“…In this study, EC did not show significant differences among the treatment plots. However, the approximately 2.3% increase in EC in the MP compared with in the CP was similar to the findings of Torimiro et al [49], who found that EC was 2.9% higher in oil-contaminated soil than in the CP. He suggested that the electrical conductivity was also higher than that of normal soil because of soluble salts, as it has a higher organic content.…”

Section: Effects Of Soil Contamination On Soil Physical Properties An...supporting

confidence: 90%

Impact of Three Chainsaw Lubricants on Forest Soil Bacterial Community, Soil Respiration and Seedling Growth

Kim,

Shin,

Kim

et al. 2023

Forests

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Lubricants are applied onto chainsaw blades to achieve their optimum cutting performance; however, during logging or timber operations, lubricants may penetrate the forest soil. The persistent organic pollutants in lubricants may cause environmental damage, and different types of lubricants vary in terms of their environmental impact. Hence, selecting appropriate lubricants for timber operations is important for sustainable forest management. In this study, the effects of three lubricant types—biodegradable oil (bio-oil), petroleum-based bar-and-chain oil (mineral oil), and petroleum-based recycled oil (recycled oil)—on soil health were evaluated. The study was conducted in a controlled nursery setting, simulating post-logging reforestation. Sixteen types of polycyclic aromatic hydrocarbons and the total petroleum hydrocarbon concentrations in the soil samples were analyzed. Bio-oil facilitated faster recovery from soil contamination, whereas mineral oil exhibited slow and incomplete recovery. Recycled lubricants appear to be more environmentally sustainable options, indicating lower long-term soil contamination risks than petroleum-based lubricants. From a productivity perspective, the lubricant that supported the growth of seedlings was bio-oil. The findings of our study contribute to responsible lubricant selection for enhancing the overall health and sustainability of forest ecosystems.

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Section: Effects Of Soil Contamination On Soil Physical Properties An...supporting

confidence: 90%

Impact of Three Chainsaw Lubricants on Forest Soil Bacterial Community, Soil Respiration and Seedling Growth

Kim,

Shin,

Kim

et al. 2023

Forests

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“…They were agitated, incubated at 30℃ for 24 hours and spun in a centrifuge at 3000 rpm for 15 minutes. Thereafter, adjusted to 0.5 Mcfarland Standard at 590 nm wavelength, and used as the starting culture for other analyses [12].…”

Section: Inoculum Preparation For Biodegradationmentioning

confidence: 99%

“…LDPE can be cleaned off from the environment using light (photo-degradation), heat (thermal degradation), and biological (biodegradation), of which biological method is more eco-friendly. [4] Microorganisms are increasingly being used as agents of biodegradation, as they utilize these contaminants as their source of carbon and energy metabolizing them into smaller compounds, including CO 2 , H 2 O and humus, which are ecofriendly end products [10,12]. Due to the presence of long carbon chain in plastics as well as LDPE, their degradation is dependent on the morphology and chemical structure of the plastic [4].…”

Section: Introductionmentioning

confidence: 99%

Characterization of low-density polyethylene (LDPE) films degraded using bacteria strains isolated from oil-contaminated soil

Akhigbe

EnochOghene

Olumurewa

et al. 2023

Environmental Technology

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This study assessed the low-density polythene (LDPE) lm degradation potential of microorganisms isolated from oil contaminated soil, and characterizing the LDPE lms after degradation period by analyzing the morphological and chemical composition. The bacteria strains isolated from petroleum contaminated soils were used as bio-degraders for the analysis and isolates with great degradation activity were identi ed via 16S RNA gene ampli cation technique. The growth rates of the bacterial isolates and their LDPE utilization in the medium were monitored for 78 days, using UV spectrophotometry. Thereafter, the LDPE in the media were quantitatively and qualitatively analysed. Results obtained from weight loss measurement, scanning electron microscope (SEM) images and energy dispersal x-ray (EDX) revealed a reduction in weight, porosity and fragility of all the analyzed LDPE lms that were subjected to bacteria degradation. Isolates with good degradation of LDPE lms were identi ed as Proteus mirabilis (Accession number: MN124173.1) and Proteus mirabilis (Accession number: KY027145.1), having a weight loss of 89.72% and 71.80% respectively. The identi cation and utilization of potential LDPE microbial degraders are useful in the management of plastic waste, leading to a reduction in global plastic waste and a clean environment.

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Soil contamination by waste transformer oil: A review

Tiwari¹,

Agrawal²,

Bawa³

et al. 2023

Materials Today: Proceedings

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Bioprospecting of potential petroleum hydrocarbon degraders using bacterial strains isolated from soils around transformer installation areas

Cited by 3 publications

References 36 publications

Impact of Three Chainsaw Lubricants on Forest Soil Bacterial Community, Soil Respiration and Seedling Growth

Impact of Three Chainsaw Lubricants on Forest Soil Bacterial Community, Soil Respiration and Seedling Growth

Characterization of low-density polyethylene (LDPE) films degraded using bacteria strains isolated from oil-contaminated soil

Soil contamination by waste transformer oil: A review

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