Molecular characterization and evaluation of crude oil remediation potential of some rhizobia isolated from plant root nodules

Enibukun, Jesupemi Mercy; Boboye, B.

doi:10.36547/nbc.v19i1.580

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…Polycyclic aromatic hydrocarbons were successfully broken down in crude oil-infected sediment by Rhizophora mangle ; however, the field application of this method is in doubt due to physical and biological variations that could occur in the natural environment (Verâne et al 2020 ). Ekperusi et al ( 2020 ) and Enibukun and Boboye ( 2020 ) posited that Lemna paucicostata , a duckweed species, significantly degraded hydrocarbons in contaminated wetlands. Six (6) Rhizobia were isolated from legumes; however, R. leguminosarum BIHIB1217 and R. leguminosarum N871 were the most efficient in breaking down crude oil in soils.…”

Section: Existing and Emerging Remediation Approach For Crude Oil Pollutionmentioning

confidence: 99%

Crude oil exploration in Africa: socio-economic implications, environmental impacts, and mitigation strategies

et al. 2021

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Crude oil exploration is a source of significant revenue in Africa via trade and investment since its discovery in the mid-19th Century. Crude oil has bolstered the continent’s economy and improved the wellbeing of the citizenry. Historically, Africa has suffered from conflicts due to uneven redistribution of crude oil revenue and severe environmental pollution. Advancements in geophysical survey techniques, such as magnetic and gravity methods, to seismic methods, have made the commercial exploration of crude oil possible for some other countries in Africa apart from Nigeria, Angola, Algeria, Libya, and Egypt. The occurrence of organic-rich, oil-prone Type I, II, and mixed II/III kerogens in sedimentary basins and entrapment within reservoir rocks with intrinsic petrophysical properties are majorly responsible for the large deposits of hydrocarbon in Africa. The unethical practices by some multinational oil corporations have resulted in social movements against them by host communities and human rights groups. The unscrupulous diversion of public funds, award of oil blocks, and production rights to certain individuals have impaired economic growth in Africa. The over-dependence on crude oil revenues has caused the economic recession in oil-producing countries due to plummeting oil prices and global pandemic. Most host communities of crude oil deposits suffer from a lack of infrastructure, arable soils, clean water, and their functioning capabilities are violated by crude oil exploratory activities, without adequate compensations and remedial actions taken by oil companies and the government. Thus, this review examines crude oil exploration in Africa and provides insight into the environmental and socio-economic implications of crude oil exploration in Africa. Furthermore, this report highlights some recommendations that may ensure ethical and sustainable practices toward minimizing negative impacts and improving the quality of life in affected communities.

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Section: Existing and Emerging Remediation Approach For Crude Oil Pollutionmentioning

confidence: 99%

Crude oil exploration in Africa: socio-economic implications, environmental impacts, and mitigation strategies

et al. 2021

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Comparison of microbial community structures between oil and water phases in a low-permeability reservoir after water flooding

et al. 2023

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Enzymatic hydrolysis as a tool to improve total digestibility and techno-functional properties of pigeon pea (Cajanus cajan) starch

Benítez

Tabares

Velásquez

et al. 2021

Heliyon

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Recent studies have indicated that starch from legumes can potentially be used as an alternative to commercial flour with applications in food and biomaterials; however, some modifications may be required first to improve their functionality, as they show relatively lower solubility and functional properties compared to commonly marketed flours (e.g. good water retention capacity). This work used multiple enzymes in flour extracts of pigeon pea ( Cajanus cajan ), a legume, to optimize the enzyme hydrolysis process of such extracts by the Response Surface Method (RSM), to increase the digestibility and obtain desirable functional attributes at the nutritional level. The pH, temperature, time and enzyme/substrate (E/S) ratio were evaluated, and the degree of hydrolysis (DH) was calculated as well as the reducing sugar content (%RS), used as response variable. According to the experimental design, the best pH, temperature, time and E/S ratio were 6.8, 43 °C, 1.84% m/m and 270 min, respectively. The %RS for the samples under optimal conditions was 3.49 ± 0.02%, and the in vitro digestibility yielded values of 39.2 ± 0.4, 58.6 ± 0.3 and 2.2 ± 0.2 for slowly digestible starch (SDS), rapidly digestible starch (RDS) and resistant starch (RS), respectively. Total digestibility (TD) was 97.8 ± 0.5. The statistical analysis revealed a strong positive relationship for E/S ratio followed by pH: (E/S) ratio, temperature and pH. Enzymatic hydrolysis carried out on pigeon pea showed an increase in TD. Viscosity, water retention capacity (WRC) and solubility were evaluated showing good response for future applications at the industrial level.

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Molecular characterization and evaluation of crude oil remediation potential of some rhizobia isolated from plant root nodules

Cited by 3 publications

References 29 publications

Crude oil exploration in Africa: socio-economic implications, environmental impacts, and mitigation strategies

Crude oil exploration in Africa: socio-economic implications, environmental impacts, and mitigation strategies

Comparison of microbial community structures between oil and water phases in a low-permeability reservoir after water flooding

Enzymatic hydrolysis as a tool to improve total digestibility and techno-functional properties of pigeon pea (Cajanus cajan) starch

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