Journal articles: 'Petroleum – Microbiology'

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Wackett, Lawrence P. "Petroleum microbiology." Microbial Biotechnology 5, no. 4 (June 7, 2012): 579–80. http://dx.doi.org/10.1111/j.1751-7915.2012.00350.x.

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Mu, Bo-Zhong, and Tamara N. Nazina. "Recent Advances in Petroleum Microbiology." Microorganisms 10, no. 9 (August 24, 2022): 1706. http://dx.doi.org/10.3390/microorganisms10091706.

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Van Hamme, Jonathan D., Ajay Singh, and Owen P. Ward. "Recent Advances in Petroleum Microbiology." Microbiology and Molecular Biology Reviews 67, no. 4 (December 2003): 503–49. http://dx.doi.org/10.1128/mmbr.67.4.503-549.2003.

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SUMMARY Recent advances in molecular biology have extended our understanding of the metabolic processes related to microbial transformation of petroleum hydrocarbons. The physiological responses of microorganisms to the presence of hydrocarbons, including cell surface alterations and adaptive mechanisms for uptake and efflux of these substrates, have been characterized. New molecular techniques have enhanced our ability to investigate the dynamics of microbial communities in petroleum-impacted ecosystems. By establishing conditions which maximize rates and extents of microbial growth, hydrocarbon access, and transformation, highly accelerated and bioreactor-based petroleum waste degradation processes have been implemented. Biofilters capable of removing and biodegrading volatile petroleum contaminants in air streams with short substrate-microbe contact times (<60 s) are being used effectively. Microbes are being injected into partially spent petroleum reservoirs to enhance oil recovery. However, these microbial processes have not exhibited consistent and effective performance, primarily because of our inability to control conditions in the subsurface environment. Microbes may be exploited to break stable oilfield emulsions to produce pipeline quality oil. There is interest in replacing physical oil desulfurization processes with biodesulfurization methods through promotion of selective sulfur removal without degradation of associated carbon moieties. However, since microbes require an environment containing some water, a two-phase oil-water system must be established to optimize contact between the microbes and the hydrocarbon, and such an emulsion is not easily created with viscous crude oil. This challenge may be circumvented by application of the technology to more refined gasoline and diesel substrates, where aqueous-hydrocarbon emulsions are more easily generated. Molecular approaches are being used to broaden the substrate specificity and increase the rates and extents of desulfurization. Bacterial processes are being commercialized for removal of H2S and sulfoxides from petrochemical waste streams. Microbes also have potential for use in removal of nitrogen from crude oil leading to reduced nitric oxide emissions provided that technical problems similar to those experienced in biodesulfurization can be solved. Enzymes are being exploited to produce added-value products from petroleum substrates, and bacterial biosensors are being used to analyze petroleum-contaminated environments.

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Voordouw, Gerrit. "Production-related petroleum microbiology: progress and prospects." Current Opinion in Biotechnology 22, no. 3 (June 2011): 401–5. http://dx.doi.org/10.1016/j.copbio.2010.12.005.

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Rellegadla, Sandeep, Shikha Jain, and Akhil Agrawal. "Oil reservoir simulating bioreactors: tools for understanding petroleum microbiology." Applied Microbiology and Biotechnology 104, no. 3 (December 20, 2019): 1035–53. http://dx.doi.org/10.1007/s00253-019-10311-5.

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Donets, Dmytro M., Ivan S. Suruzhiu, and Petro B. Pryima. "Analyzing the Challenges and Threats to the Petroleum Products Market in the Context of National Security." Business Inform 1, no. 552 (2024): 235–40. http://dx.doi.org/10.32983/2222-4459-2024-1-235-240.

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In this work, based on the analysis of sources of information that are in the public domain, the major threats and challenges to the petroleum products market in the context of national security are identified. The concept of national security, its connection with other types of security and the place of the market of petroleum products in these relations are considered. A model of relations between the petroleum products market in the circle of national security has been built. For the petroleum products market of Ukraine, an analysis of factors that are threats and challenges both common to all countries and specific to Ukraine is carried out. The study identifies the main threats to the petroleum products market in Ukraine, including: the possibility of losing supplies due to the lack of medium-term and long-term contracts; intersection of interests of exporting and importing countries, which is reflected in their use of specific means of solving problems; blockade of ports, destruction of existing petroleum depots; the difficulty of creating a stock of petroleum products due to the vulnerability of warehouses or petroleum depots; problems with own production of petroleum products due to the destruction or damage of existing facilities for production of petroleum products and the vulnerability of places of extraction of raw materials for petroleum products; almost complete dependence on imports; political pressure on the petroleum products market both from exporting countries and domestic political pressure. The challenges to the market include the growth of the logistics leverage, the change in the preferences of buyers from gasoline in favor of diesel fuel and the rupture of previous logistic chains with the need to create new, as well as unplanned changes in transportation due to changes in the situation at the State borders. There is also a growing demand for the use of rail and sea transport for the supply of petroleum products to the markets of Ukraine. In this regard, an additional challenge is to pursue a reasonable pricing policy in these conditions in order to prevent a sharp increase in prices in the petroleum products market.

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Wang, Ji Hua, and Shan Shan Zhang. "The Application of Microbes in Petroleum Industry." Advanced Materials Research 868 (December 2013): 542–46. http://dx.doi.org/10.4028/www.scientific.net/amr.868.542.

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With the advances in biological sciences, microbiology techniques to be applied to people in all areas of production and life, this paper introduces the microorganisms in the oil industry in all sectors such as oil and gas exploration microorganisms, microbial enhanced oil recovery and microbial degradation of the oil pollution and other aspects of the application. By summarizing the impact of microbial technology for the various aspects of oil industry, make the foundation of the microbial creative application in the field of oil industry.

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Fan, Li, Xianhe Gong, Quanwei Lv, Denghui Bin, and Li’Ao Wang. "Construction of Shale Gas Oil-Based Drilling Cuttings Degrading Bacterial Consortium and Their Degradation Characteristics." Microorganisms 12, no. 2 (February 2, 2024): 318. http://dx.doi.org/10.3390/microorganisms12020318.

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Oil-based drilling cuttings (OBDCs) contain petroleum hydrocarbons with complex compositions and high concentrations, which have highly carcinogenic, teratogenic, and mutagenic properties. In this study, three highly efficient petroleum hydrocarbon-degrading bacteria were screened from OBDCs of different shale gas wells in Chongqing, China, and identified as Rhodococcus sp. and Dietzia sp. Because of their ability to degrade hydrocarbons of various chain lengths, a new method was proposed for degrading petroleum hydrocarbons in shale gas OBDCs by combining different bacterial species. Results showed that the bacterial consortium, consisting of the three strains, exhibited the highest degradation rate for petroleum hydrocarbons, capable of degrading 74.38% of long-chain alkanes and 93.57% of short-chain alkanes, respectively. Moreover, the petroleum hydrocarbon degradation performance of the bacterial consortium in actual OBDCs could reach 90.60% in the optimal conditions, and the degradation kinetic process followed a first-order kinetic model. This study provides a certain technical reserve for the bioremediation of shale gas OBDCs.

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Robbins, Eleanora I., Mark R. Stanton, and Cheryl D. Young. "Geochemistry and Microbiology of Atacamite-Paratacamite Biofilms Floating on Underground Brine and Petroleum Pools in the White Pine Copper Mine, Michigan (USA)." Micro 3, no. 3 (August 28, 2023): 728–38. http://dx.doi.org/10.3390/micro3030051.

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At depth in an abandoned tunnel of the White Pine Copper Mine, green films of the Cu-OH-Cl minerals atacamite and paratacamite were found on standing pools of brine. Some pools were also coated with a thin layer of petroleum. Green films of atacamite were composed of individual blebs that averaged 20 μm in diameter and enclosed mixed colonies of Gram-negative, short rod-shaped, and sheathed filamentous bacteria. Carbon δ13C values in the atacamite–paratacamite mixtures reflect the isotopic values of bacteria and minor amounts of petroleum mixed with the minerals. Heterotrophic bacteria are interpreted to be using petroleum as a carbon source and may be catalyzing the precipitation of the copper hydroxy chloride minerals or acting as a template.

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Röling, Wilfred F. M., Ian M. Head, and Steve R. Larter. "The microbiology of hydrocarbon degradation in subsurface petroleum reservoirs: perspectives and prospects." Research in Microbiology 154, no. 5 (June 2003): 321–28. http://dx.doi.org/10.1016/s0923-2508(03)00086-x.

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Ramdass, Amanda C., and Sephra N. Rampersad. "Diversity and Oil Degradation Potential of Culturable Microbes Isolated from Chronically Contaminated Soils in Trinidad." Microorganisms 9, no. 6 (May 28, 2021): 1167. http://dx.doi.org/10.3390/microorganisms9061167.

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Trinidad and Tobago is the largest producer of oil and natural gas in Central America and the Caribbean. Natural crude oil seeps, in addition to leaking petroleum pipelines, have resulted in chronic contamination of the surrounding terrestrial environments since the time of petroleum discovery, production, and refinement in Trinidad. In this study, we isolated microbes from soils chronically contaminated with crude oil using a culture-dependent approach with enrichment. The sampling of eight such sites located in the southern peninsula of Trinidad revealed a diverse microbial composition and novel oil-degrading filamentous fungi and yeast as single-isolate degraders and naturally occurring consortia, with specific bacterial species not previously reported in the literature. Multiple sequence comparisons and phylogenetic analyses confirmed the identity of the top degraders. The filamentous fungal community based on culturable species was dominated by Ascomycota, and the recovered yeast isolates were affiliated with Basidiomycota (65.23%) and Ascomycota (34.78%) phyla. Enhanced biodegradation of petroleum hydrocarbons is maintained by biocatalysts such as lipases. Five out of seven species demonstrated extracellular lipase activity in vitro. Our findings could provide new insights into microbial resources from chronically contaminated terrestrial environments, and this information will be beneficial to the bioremediation of petroleum contamination and other industrial applications.

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Tomasino, Maria Paola, Mariana Aparício, Inês Ribeiro, Filipa Santos, Miguel Caetano, C. Marisa R. Almeida, Maria de Fátima Carvalho, and Ana P. Mucha. "Diversity and Hydrocarbon-Degrading Potential of Deep-Sea Microbial Community from the Mid-Atlantic Ridge, South of the Azores (North Atlantic Ocean)." Microorganisms 9, no. 11 (November 19, 2021): 2389. http://dx.doi.org/10.3390/microorganisms9112389.

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Deep-sea sediments (DSS) are one of the largest biotopes on Earth and host a surprisingly diverse microbial community. The harsh conditions of this cold environment lower the rate of natural attenuation, allowing the petroleum pollutants to persist for a long time in deep marine sediments raising problematic environmental concerns. The present work aims to contribute to the study of DSS microbial resources as biotechnological tools for bioremediation of petroleum hydrocarbon polluted environments. Four deep-sea sediment samples were collected in the Mid-Atlantic Ridge, south of the Azores (North Atlantic Ocean). Their autochthonous microbial diversity was investigated by 16S rRNA metabarcoding analysis. In addition, a total of 26 deep-sea bacteria strains with the ability to utilize crude oil as their sole carbon and energy source were isolated from the DSS samples. Eight of them were selected for a novel hydrocarbonoclastic-bacterial consortium and their potential to degrade petroleum hydrocarbons was tested in a bioremediation experiment. Bioaugmentation treatments (with inoculum pre-grown either in sodium acetate or petroleum) showed an increase in degradation of the hydrocarbons comparatively to natural attenuation. Our results provide new insights into deep-ocean oil spill bioremediation by applying DSS hydrocarbon-degrading consortium in lab-scale microcosm to simulate an oil spill in natural seawater.

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Yang, Guang-Chao, Lei Zhou, Serge Mbadinga, Ji-Dong Gu, and Bo-Zhong Mu. "Bioconversion Pathway of CO2 in the Presence of Ethanol by Methanogenic Enrichments from Production Water of a High-Temperature Petroleum Reservoir." Energies 12, no. 5 (March 9, 2019): 918. http://dx.doi.org/10.3390/en12050918.

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Transformation of CO2 in both carbon capture and storage (CCS) to biogenic methane in petroleum reservoirs is an attractive and promising strategy for not only mitigating the greenhouse impact but also facilitating energy recovery in order to meet societal needs for energy. Available sources of petroleum in the reservoirs reduction play an essential role in the biotransformation of CO2 stored in petroleum reservoirs into clean energy methane. Here, the feasibility and potential on the reduction of CO2 injected into methane as bioenergy by indigenous microorganisms residing in oilfields in the presence of the fermentative metabolite ethanol were assessed in high-temperature petroleum reservoir production water. The bio-methane production from CO2 was achieved in enrichment with ethanol as the hydrogen source by syntrophic cooperation between the fermentative bacterium Synergistetes and CO2-reducing Methanothermobacter via interspecies hydrogen transfer based upon analyses of molecular microbiology and stable carbon isotope labeling. The thermodynamic analysis shows that CO2-reducing methanogenesis and the methanogenic metabolism of ethanol are mutually beneficial at a low concentration of injected CO2 but inhibited by the high partial pressure of CO2. Our results offer a potentially valuable opportunity for clean bioenergy recovery from CCS in oilfields.

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Liu, Li, Xiaozhong Yu, Jinhe Li, Chongjun Huang, and Jin Xiong. "STUDY ON THE SOCIAL RISK OF PETROLEUM EXPLORATION AND DEVELOPMENT ACCIDENTS: A CASE OF MACONDO ACCIDENT IN THE GULF OF MEXICO." International Journal of Engineering Technologies and Management Research 9, no. 11 (November 10, 2022): 9–17. http://dx.doi.org/10.29121/ijetmr.v9.i11.2022.1243.

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The process of petroleum exploration and development is related to many factors. A large number of safety accidents occur every year around the world and have an impact on the society. Due to the particularity of Marine environment, safety accidents in the process of offshore petroleum exploration and development usually have serious impacts. Taking Macondo accident in Gulf of Mexico as an example, this paper studies the social risk of petroleum exploration and development accident. On the basis of introducing the accident background, the accident process and the accident consequence, the technical reason and the management reason of the accident are analyzed, and the social influence of the accident is further analyzed. The root cause of the incident was BP's catch-up schedule, which resulted in a lack of compliance with cementing procedures such as casing running, cement injection, cement waiting, cement bond logging, and negative pressure testing, as well as inadequate supervision. After the accident, the technical treatment effect of petroleum spill was not good, and the government blindly emphasized responsibility and took little initiative to participate in the accident treatment, which turned the social risk into a social crisis and caused terrible effects. The accident seriously affected the lives of coastal residents, caused great harm to Marine life, and damaged the Marine ecological environment of the Gulf of Mexico.

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Wu, Baichun, Jingmin Deng, Hao Niu, Jiahao Liang, Muhammad Arslan, Mohamed Gamal El-Din, Qinghong Wang, Shaohui Guo, and Chunmao Chen. "Establishing and Optimizing a Bacterial Consortia for Effective Biodegradation of Petroleum Contaminants: Advancing Classical Microbiology via Experimental and Mathematical Approach." Water 13, no. 22 (November 22, 2021): 3311. http://dx.doi.org/10.3390/w13223311.

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In classical microbiology, developing a high-efficiency bacterial consortium is a great challenge for faster biodegradation of petroleum contaminants. In this study, a systematic experimental and mathematical procedure was adopted to establish a bacterial consortium for the effective biodegradation of heavy oil constituents. A total of 27 bacterial consortia were established as per orthogonal experiments, using 8 petroleum-degrading bacterial strains. These bacteria were closer phylogenetic relatives of Brevundimonas sp. Tibet-IX23 (Y1), Bacillus firmus YHSA15, B. cereus MTCC 9817, B. aquimaris AT8 (Y2, Y6 and Y7), Pseudomonas alcaligenes NBRC (Y3), Microbacterium oxydans CV8.4 (Y4), Rhodococcus erythropolis SBUG 2052 (Y5), and Planococcus sp. Tibet-IX21 (Y8), and were used in different combinations. Partial correlation analysis and a general linear model hereafter were applied to investigate interspecific relationships among different strains and consortia. The Y1 bacterial species showed a remarkable synergy, whereas Y3, Y4, and Y6 displayed a strong antagonism in all consortia. Inoculation ratios of different strains significantly influenced biodegradation. An optimal consortium was constructed with Y1, Y2, Y5, Y7, and Y8, which revealed maximum degradation of 11.238 mg/mL OD600 for oil contaminants. This study provides a line of evidence that a functional consortium can be established by mathematical models for improved bioremediation of petroleum-contaminated environment.

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Perdigão, Rafaela, C. Marisa R. Almeida, Catarina Magalhães, Sandra Ramos, Ana L. Carolas, Bruno S. Ferreira, Maria F. Carvalho, and Ana P. Mucha. "Bioremediation of Petroleum Hydrocarbons in Seawater: Prospects of Using Lyophilized Native Hydrocarbon-Degrading Bacteria." Microorganisms 9, no. 11 (November 3, 2021): 2285. http://dx.doi.org/10.3390/microorganisms9112285.

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This work aimed to develop a bioremediation product of lyophilized native bacteria to respond to marine oil spills. Three oil-degrading bacterial strains (two strains of Rhodococcus erythropolis and one Pseudomonas sp.), isolated from the NW Portuguese coast, were selected for lyophilization after biomass growth optimization (tested with alternative carbon sources). Results indicated that the bacterial strains remained viable after the lyophilization process, without losing their biodegradation potential. The biomass/petroleum ratio was optimized, and the bioremediation efficiency of the lyophilized bacterial consortium was tested in microcosms with natural seawater and petroleum. An acceleration of the natural oil degradation process was observed, with an increased abundance of oil-degraders after 24 h, an emulsion of the oil/water layer after 7 days, and an increased removal of total petroleum hydrocarbons (47%) after 15 days. This study provides an insight into the formulation and optimization of lyophilized bacterial agents for application in autochthonous oil bioremediation.

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Truu, Jaak. "Oil Biodegradation and Bioremediation in Cold Marine Environment." Microorganisms 11, no. 5 (April 25, 2023): 1120. http://dx.doi.org/10.3390/microorganisms11051120.

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Broje, Victoria, Will Gala, Tim Nedwed, and Joe Twomey. "A Consensus on the State of the Knowledge and Research Recommendations on the Fate and Effects of Deep Water Releases of Oil, Dispersants and Dispersed Oil." International Oil Spill Conference Proceedings 2014, no. 1 (May 1, 2014): 225–37. http://dx.doi.org/10.7901/2169-3358-2014.1.225.

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ABSTRACT American Petroleum Institute (API) and its member companies have initiated a multi-year research program to generate information that can be used in subsea dispersant application decision-making. An important part of this program is the evaluation of biodegradation and toxicity of oil, dispersants and dispersed oil in a deepwater environment. The available scientific literature was reviewed by a panel of international experts in deepwater ecology, toxicology, microbiology, and petroleum chemistry, who summarized the state of the knowledge on these topics and recommended additional studies that would inform subsea dispersants decision-making. The recommended research projects have been funded by API. This paper summarizes findings to-date on toxicity and biodegradation of oil, dispersants and dispersed oil in deep water environments.

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Prince, Roger C. "Petroleum Spill Bioremediation in Marine Environments." Critical Reviews in Microbiology 19, no. 4 (January 1993): 217–40. http://dx.doi.org/10.3109/10408419309113530.

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Atlas, R. M. "Bioremediation of petroleum pollutants." International Biodeterioration & Biodegradation 35, no. 1-3 (January 1995): 335–36. http://dx.doi.org/10.1016/0964-8305(95)90041-1.

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Marchand, Charlotte, Marc St-Arnaud, William Hogland, Terrence H. Bell, and Mohamed Hijri. "Petroleum biodegradation capacity of bacteria and fungi isolated from petroleum-contaminated soil." International Biodeterioration & Biodegradation 116 (January 2017): 48–57. http://dx.doi.org/10.1016/j.ibiod.2016.09.030.

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Daâssi, Dalel, and Fatimah Qabil Almaghrabi. "Petroleum-Degrading Fungal Isolates for the Treatment of Soil Microcosms." Microorganisms 11, no. 5 (May 22, 2023): 1351. http://dx.doi.org/10.3390/microorganisms11051351.

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The main purpose of this study was to degrade total petroleum hydrocarbons (TPHs) from contaminated soil in batch microcosm reactors. Native soil fungi isolated from the same petroleum-polluted soil and ligninolytic fungal strains were screened and applied in the treatment of soil-contaminated microcosms in aerobic conditions. The bioaugmentation processes were carried out using selected hydrocarbonoclastic fungal strains in mono or co-cultures. Results demonstrated the petroleum-degrading potential of six fungal isolates, namely KBR1 and KBR8 (indigenous) and KBR1-1, KB4, KB2 and LB3 (exogenous). Based on the molecular and phylogenetic analysis, KBR1 and KB8 were identified as Aspergillus niger [MW699896] and tubingensis [MW699895], while KBR1-1, KB4, KB2 and LB3 were affiliated with the genera Syncephalastrum sp. [MZ817958], Paecilomyces formosus [MW699897], Fusarium chlamydosporum [MZ817957] and Coniochaeta sp. [MW699893], respectively. The highest rate of TPH degradation was recorded in soil microcosm treatments (SMT) after 60 days by inoculation with Paecilomyces formosus 97 ± 2.54%, followed by bioaugmentation with the native strain Aspergillus niger (92 ± 1.83%) and then by the fungal consortium (84 ± 2.21%). The statistical analysis of the results showed significant differences.

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Mardhiah Batubara, Ummi, Rina D’rita Sibagariang, Riska Fatmawati, Novreta Ersyi Darfia, Topan Yahya Ginting, and Teti Maelina. "Isolation of marine hydrocarbonoclastic bacteria from petroleum contaminated sites in Dumai." BIO Web of Conferences 74 (2023): 04005. http://dx.doi.org/10.1051/bioconf/20237404005.

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The Dumai Sea is vulnerable to pollution, especially oil spills. Oil pollution in Dumai seawater causes a decline in the population of aquatic organisms. Isolation and screening of marine hydrocarbonoclastic bacteria is one effort to find potential local agents. This research aims to isolate marine hydrocarbonoclastic bacteria from the Petroleum Contaminated Site in Dumai. This research uses a survey method, and it was in four stages such as, isolation, screening, morphological and physiological characteristics, bacterial identification, and data analysis. Water samples were taken using purposive sampling at seven different locations. The samples were analyzed in situ, including water characteristics, pH, temperature, salinity, and brightness. Furthermore, the water samples were further analyzed at the Marine Microbiology Laboratory, University of Riau. Isolation and screening results showed that ten isolates of marine hydrocarbonoclastic bacteria can grow in SSMS liquid media with a petroleum content of 5%. The ten isolates in sequence are DS21a, DS22b, DS42c, DS52d, DS61e, DS62f, DS63g, DS71h, DS72i and DS73j. The characterization and identification results obtained four different genera from petroleum-contaminated sites in Dumai, sequentially Micrococcus, Rhodococcus, Marinobacter, and Bacillus.

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Abbas, Rasha Khalid, Amina A. M. Al-Mushhin, Fatima S. Elsharbasy, and Kother Osman Ashiry. "Nutritive Value, Polyphenol Constituents and Prevention of Pathogenic Microorganism by Different Resin Extract of Commiphora myrrh." Journal of Pure and Applied Microbiology 14, no. 3 (August 28, 2020): 1871–78. http://dx.doi.org/10.22207/jpam.14.3.26.

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The resin extract of Commiphora myrrh is Widely used in the folk medicine. The studying myrrh resin extract include moisture. minerals such as (Ca, Fe, Mg, Na, Cu and Zn), protein, total fat and crude fiber. In this study used Muffle furnace, Kjeldahl methods Soxlet and atomic absorption. HPLC using to evaluating Polyphenol constituents of myrrh different resin extract (ethanol, ethyl acetate, petroleum ether and chloroform) as Conc. (µg / g) and in all extract (ethanol, ethyl acetate and petroleum ether and chloroform) it contained Chlorogenic acid, gallic acid Catechin, Coffeic acid, caffeine, Syringic acid, Coumaric acid, Ferulic acid, Naringenin, 4`.7-Dihydroxyisoflavone, Cinnamic, Propyl Gallate Vanillin, Querectin and Acid Ellagic acid in different concentration percentage and area The effect of Commiphora myrrh (ethanol, ethyl acetate, petroleum ether and chloroform) resin extract against four different pathogenic bacteria Salmonella typhimurium, Pseudomona aeruginosa, Escherichia coli, and Bacillus cereus, were examine by Mueller Hinton Agar and measuring inhibition zone (diameter mm), show that there were significant different among bacteria and different method of extract. All different Commiphora myrrh seed extract (aqueous, ethyl acetate and petroleum ether) have high activity against Candida albicans fungus. The study was conducted to identified the Commiphora myrrh nutritive value, polyphenol Compound and the activity against bacteria and fungi.

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Teramoto, Maki, Masahito Suzuki, Fumiyoshi Okazaki, Ariani Hatmanti, and Shigeaki Harayama. "Oceanobacter-related bacteria are important for the degradation of petroleum aliphatic hydrocarbons in the tropical marine environment." Microbiology 155, no. 10 (October 1, 2009): 3362–70. http://dx.doi.org/10.1099/mic.0.030411-0.

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Petroleum-hydrocarbon-degrading bacteria were obtained after enrichment on crude oil (as a ‘chocolate mousse’) in a continuous supply of Indonesian seawater amended with nitrogen, phosphorus and iron nutrients. They were related to Alcanivorax and Marinobacter strains, which are ubiquitous petroleum-hydrocarbon-degrading bacteria in marine environments, and to Oceanobacter kriegii (96.4–96.5 % similarities in almost full-length 16S rRNA gene sequences). The Oceanobacter-related bacteria showed high n-alkane-degrading activity, comparable to that of Alcanivorax borkumensis strain SK2. On the other hand, Alcanivorax strains exhibited high activity for branched-alkane degradation and thus could be key bacteria for branched-alkane biodegradation in tropical seas. Oceanobacter-related bacteria became most dominant in microcosms that simulated a crude oil spill event with Indonesian seawater. The dominance was observed in microcosms that were unamended or amended with fertilizer, suggesting that the Oceanobacter-related strains could become dominant in the natural tropical marine environment after an accidental oil spill, and would continue to dominate in the environment after biostimulation. These results suggest that Oceanobacter-related bacteria could be major degraders of petroleum n-alkanes spilt in the tropical sea.

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Hussain, Nadia, Fatima Muccee, Muhammad Hammad, Farhan Mohiuddin, Saboor Muarij Bunny, and Aansa Shahab. "Molecular and metabolic characterization of petroleum hydrocarbons degrading Bacillus cereus." Polish Journal of Microbiology 73, no. 1 (March 1, 2024): 107–20. http://dx.doi.org/10.33073/pjm-2024-012.

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Abstract Hydrocarbon constituents of petroleum are persistent, bioaccumulated, and bio-magnified in living tissues, transported to longer distances, and exert hazardous effects on human health and the ecosystem. Bioaugmentation with microorganisms like bacteria is an emerging approach that can mitigate the toxins from environmental sources. The present study was initiated to target the petroleum-contaminated soil of gasoline stations situated in Lahore. Petroleum degrading bacteria were isolated by serial dilution method followed by growth analysis, biochemical and molecular characterization, removal efficiency estimation, metabolites extraction, and GC-MS of the metabolites. Molecular analysis identified the bacterium as Bacillus cereus, which exhibited maximum growth at 72 hours and removed 75% petroleum. Biochemical characterization via the Remel RapID™ ONE panel system showed positive results for arginine dehydrolase (ADH), ornithine decarboxylase (ODC), lysine decarboxylase (LDC), o-nitrophenyl-β-D-galactosidase (ONPG), p-nitrophenyl-β-D-glucosidase (βGLU), p-nitrophenyl-N-acetyl-β-D-glucosaminidase (NAG), malonate (MAL), adonitol fermentation (ADON), and tryptophane utilization (IND). GC-MS-based metabolic profiling identified alcohols (methyl alcohol, o-, p- and m-cresols, catechol, and 3-methyl catechol), aldehydes (methanone, acetaldehyde, and m-tolualdehyde), carboxylic acid (methanoic acid, cis,cis-muconic acid, cyclohexane carboxylic acid and benzoic acid), conjugate bases of carboxylic acids (benzoate, cis,cis-muconate, 4-hydroxybenzoate, and pyruvate) and cycloalkane (cyclohexene). It suggested the presence of methane, methylcyclohexane, toluene, xylene, and benzene degradation pathways in B. cereus.

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Su, Zhaoying, Shaojing Wang, Shicheng Yang, Yujun Yin, Yunke Cao, Guoqiang Li, and Ting Ma. "Genetic and Comparative Genome Analysis of Exiguobacterium aurantiacum SW-20, a Petroleum-Degrading Bacteria with Salt Tolerance and Heavy Metal-Tolerance Isolated from Produced Water of Changqing Oilfield, China." Microorganisms 10, no. 1 (December 29, 2021): 66. http://dx.doi.org/10.3390/microorganisms10010066.

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The genome of Exiguobacterium aurantiacum SW-20 (E. aurantiacum SW-20), a salt-tolerant microorganism with petroleum hydrocarbon-degrading ability isolated from the Changqing Oilfield, was sequenced and analyzed. Genomic data mining even comparative transcriptomics revealed that some genes existed in SW-20 might be related to the salt tolerance. Besides, genes related to petroleum hydrocarbon degradation discovered in genomic clusters were also found in the genome, indicating that these genes have a certain potential in the bioremediation of petroleum pollutants. Multiple natural product biosynthesis gene clusters were detected, which was critical for survival in the extreme conditions. Transcriptomic studies revealed that some genes were significantly up-regulated as salinity increased, implying that these genes might be related to the salt tolerance of SW-20 when living in a high salt environment. In our study, gene clusters including salt tolerance, heavy metal tolerance and alkane degradation were all compared. When the same functional gene clusters from different strains, it was discovered that the gene composition differed. Comparative genomics and in-depth analysis provided insights into the physiological features and adaptation strategies of E. aurantiacum SW-20 in the oilfield environment. Our research increased the understanding of niches adaption of SW-20 at genomic level.

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Varghese, Vini Mary, Hemand Aravind, Saritha SS, and Mithilesh Jaiswal. "Screening of Antimicrobial Activity of Murraya koenigii Leaf Extracts Against Pathogenic Bacterial Strains Staphylococcus aureus and Escherichia coli Isolated from Contaminated Water." South Asian Journal of Research in Microbiology 18, no. 3 (March 5, 2024): 7–15. http://dx.doi.org/10.9734/sajrm/2024/v18i3349.

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Aim: Murraya koenigii is a widely used plant both as a potential medicinal agent and also for common cooking purposes. Aim of this present study was to determine the antimicrobial activity of Murraya koenigii leaf extracts on Staphylococcus aureus and Escherichia coli. Study Design: Screening and isolation of pathogenic bacterial strains from contaminated water. Preparation of Murraya koenigii leaf extracts using petroleum ether, acetone and ethyl acetate by using serial extraction method with Soxhlet apparatus. Place and Duration of Study: Department of microbiology, Agro biotec research centre Ltd, Poovanthuruthu, Kottayam, Kerala, India, between 2014 January to 2014 May. Methodology: Staphylococcus aureus and Escherichia coli were the bacterial strains used in this study. Morphological and biochemical analysis of microorganisms were conducted to identify the strains. Leaf extracts (petroleum ether, acetone and ethyl acetate) of Murraya koenigii were screened using MHA disc diffusion methods. Results: Various concentration of plant extracts were used to check its activity against isolated pathogens. Acetone extract of curry leaves exhibit maximum zone of inhibition against Staphylococcus aureus and petroleum ether extracts shown maximum inhibition against Escherichia coli.

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Oliveira, Valéria Maia de, Lara Durães Sette, Karen Christina Marques Simioni, and Eugênio Vaz dos Santos Neto. "Bacterial diversity characterization in petroleum samples from Brazilian reservoirs." Brazilian Journal of Microbiology 39, no. 3 (September 2008): 445–52. http://dx.doi.org/10.1590/s1517-83822008000300007.

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Nina Notman, special to C&EN. "Petroleum Research Fund grants available." C&EN Global Enterprise 100, no. 31 (September 5, 2022): 37. http://dx.doi.org/10.1021/cen-10031-awards4.

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Nancy Jensen, ACS staff. "Petroleum Research Fund grants available." C&EN Global Enterprise 100, no. 4 (January 31, 2022): 36–37. http://dx.doi.org/10.1021/cen-10004-awards6.

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Alexandra A. Taylor. "Petroleum Research Fund grants available." C&EN Global Enterprise 99, no. 34 (September 20, 2021): 42–43. http://dx.doi.org/10.1021/cen-09934-awards6.

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Nancy Jensen, ACS staff. "Petroleum Research Fund grants available." C&EN Global Enterprise 101, no. 6 (February 13, 2023): 28. http://dx.doi.org/10.1021/cen-10106-acsnews4.

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Acer, Ömer, Kemal Güven, Annarita Poli, Paola Di Donato, Luigi Leone, Lorena Buono, Reyhan Gül Güven, Barbara Nicolaus, and Ilaria Finore. "Acinetobacter mesopotamicus sp. nov., Petroleum-degrading Bacterium, Isolated from Petroleum-Contaminated Soil in Diyarbakir, in the Southeast of Turkey." Current Microbiology 77, no. 10 (July 28, 2020): 3192–200. http://dx.doi.org/10.1007/s00284-020-02134-9.

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Rosenberg, Eugene, Rachel Legmann, Ariel Kushmaro, Ran Taube, Ellik Adler, and Eliora Z. Ron. "Petroleum bioremediation ? a multiphase problem." Biodegradation 3, no. 2-3 (1992): 337–50. http://dx.doi.org/10.1007/bf00129092.

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Hoeppel, Ronald E., Robert E. Hinchee, and Mick F. Arthur. "Bioventing soils contaminated with petroleum hydrocarbons." Journal of Industrial Microbiology 8, no. 3 (October 1991): 141–46. http://dx.doi.org/10.1007/bf01575846.

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Ward, Owen, Ajay Singh, and J. Van Hamme. "Accelerated biodegradation of petroleum hydrocarbon waste." Journal of Industrial Microbiology and Biotechnology 30, no. 5 (May 1, 2003): 260–70. http://dx.doi.org/10.1007/s10295-003-0042-4.

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Wang, Jun-Di, Xu-Xiang Li, and Cheng-Tun Qu. "A Global Proteomic Change in Petroleum Hydrocarbon-Degrading Pseudomonas aeruginosa in Response to High and Low Concentrations of Petroleum Hydrocarbons." Current Microbiology 76, no. 11 (August 10, 2019): 1270–77. http://dx.doi.org/10.1007/s00284-019-01754-0.

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Medaura, M. Cecilia, and Eduardo C. Ércoli. "Bioconversion of petroleum hydrocarbons in soil using apple filter cake." Brazilian Journal of Microbiology 39, no. 3 (September 2008): 427–32. http://dx.doi.org/10.1590/s1517-83822008000300004.

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Castro, Ana R., Gilberto Martins, Andreia F. Salvador, and Ana J. Cavaleiro. "Iron Compounds in Anaerobic Degradation of Petroleum Hydrocarbons: A Review." Microorganisms 10, no. 11 (October 29, 2022): 2142. http://dx.doi.org/10.3390/microorganisms10112142.

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Waste and wastewater containing hydrocarbons are produced worldwide by various oil-based industries, whose activities also contribute to the occurrence of oil spills throughout the globe, causing severe environmental contamination. Anaerobic microorganisms with the ability to biodegrade petroleum hydrocarbons are important in the treatment of contaminated matrices, both in situ in deep subsurfaces, or ex situ in bioreactors. In the latter, part of the energetic value of these compounds can be recovered in the form of biogas. Anaerobic degradation of petroleum hydrocarbons can be improved by various iron compounds, but different iron species exert distinct effects. For example, Fe(III) can be used as an electron acceptor in microbial hydrocarbon degradation, zero-valent iron can donate electrons for enhanced methanogenesis, and conductive iron oxides may facilitate electron transfers in methanogenic processes. Iron compounds can also act as hydrocarbon adsorbents, or be involved in secondary abiotic reactions, overall promoting hydrocarbon biodegradation. These multiple roles of iron are comprehensively reviewed in this paper and linked to key functional microorganisms involved in these processes, to the underlying mechanisms, and to the main influential factors. Recent research progress, future perspectives, and remaining challenges on the application of iron-assisted anaerobic hydrocarbon degradation are highlighted.

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Elgazali, Abdelkareem, Hakima Althalb, Izzeddin Elmusrati, Hasna M. Ahmed, and Ibrahim M. Banat. "Remediation Approaches to Reduce Hydrocarbon Contamination in Petroleum-Polluted Soil." Microorganisms 11, no. 10 (October 17, 2023): 2577. http://dx.doi.org/10.3390/microorganisms11102577.

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Heavy metals pollution associated with oil spills has become a major concern worldwide. It is essential to break down these contaminants in the environment. In the environment, microbes have been used to detoxify and transform hazardous components. The process can function naturally or can be enhanced by adding nutrients, electron acceptors, or other factors. This study investigates some factors affecting hydrocarbon remediation technologies/approaches. Combinations of biological, chemical, and eco-toxicological techniques are used for this process while monitoring the efficacy of bacterial products and nutrient amendments to stimulate the biotransformation of contaminated soil. Different hydrocarbon removal levels were observed with bacterial augmentation (Beta proteobacterium and Rhodococcus ruber), exhibiting a total petroleum hydrocarbon (TPH) reduction of 61%, which was further improved to a 73% reduction using bacterial augmentation combined with nutrient amendment (nitrogen, potassium, and phosphorus). A heavy metal analysis of the polluted soils showed that the combination of nutrient and bacterial augmentation resulted in a significant reduction (p-value < 0.05) in lead, zinc, and barium. Toxicity testing also showed that a reduction of up to 50% was achieved using these remediation approaches.

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Elenga-Wilson, Paola Sandra, Christian Aimé Kayath, Nicaise Saturnin Mokemiabeka, Stech Anomene Eckzechel Nzaou, Etienne Nguimbi, and Gabriel Ahombo. "Profiling of Indigenous Biosurfactant-Producing Bacillus Isolates in the Bioremediation of Soil Contaminated by Petroleum Products and Olive Oil." International Journal of Microbiology 2021 (September 16, 2021): 1–15. http://dx.doi.org/10.1155/2021/9565930.

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Petroleum is, up to this date, an inimitable nonrenewable energy resource. Petroleum leakage, which arises during transport, storage, and refining, is the most important contaminant in the environment, as it produces harm to the surrounding ecosystem. Bioremediation is an efficient method used to treat petroleum hydrocarbon-contaminated soil using indigenous microorganisms. The degradation characteristics for a variety of hydrocarbons (hexane, benzene, gasoline, and diesel) were qualitatively and quantitatively investigated using Bacillus isolates. Microbiological and biochemical methods have been used including isolation of oil-degrading bacteria, enzymatic activities, the determination of physicochemical parameters, biosurfactant production and extraction assay, oil displacement assay, antimicrobial assay of the biosurfactants, and bioremediation kinetics. Consequently, of the 60 isolates capable of degrading different hydrocarbons at fast rates, 34 were suspected to be Bacillus isolates capable of growing in 24 h or 48 h on BH medium supplemented with 2% of hexane, benzene, gasoline, diesel, and olive oil, respectively. Among the 34 isolates, 61% (21/34) are capable of producing biosurfactant-like molecules by using gasoline, 70% (24/34) with diesel oil, 85% (29/34) with hexane, and 82% (28/34) with benzene. It was found that biosurfactant-producing isolates are extractable with HCl (100%), ammonium sulphate (95%), chloroform (95%), and ethanol (100%). Biosurfactants showed stability at 20°C, 37°C, 40°C, and 60°C. Biosurfactant secreted by Bacillus strains has shown an antagonistic effect in Escherichia coli, Shigella flexneri 5a M90T, and Bacillus cereus. The selected isolates could therefore be safely used for biodegradation. Substrate biodegradation patterns by individual isolates were found to significantly differ. The study shows that benzene was degraded faster, followed by hexane, gasoline, and finally diesel. The Bacillus consortium used can decrease hydrocarbon content from 195 to 112 (g/kg) in 15 days.

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Gojgic-Cvijovic, G. D., J. S. Milic, T. M. Solevic, V. P. Beskoski, M. V. Ilic, L. S. Djokic, T. M. Narancic, and M. M. Vrvic. "Biodegradation of petroleum sludge and petroleum polluted soil by a bacterial consortium: a laboratory study." Biodegradation 23, no. 1 (May 22, 2011): 1–14. http://dx.doi.org/10.1007/s10532-011-9481-1.

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Maciel, Bianca Mendes, João Carlos Teixeira Dias, Ana Cácia Freire dos Santos, Ronaldo Costa Argôlo Filho, Renato Fontana, Leandro Lopes Loguercio, and Rachel Passos Rezende. "Microbial surfactant activities from a petrochemical landfarm in a humid tropical region of Brazil." Canadian Journal of Microbiology 53, no. 8 (August 2007): 937–43. http://dx.doi.org/10.1139/w07-052.

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The goal of this study was to assess the presence and surfactant potential of naturally occurring microbes from a tropical soil with petrochemical contamination. Microorganisms in a soil sample from a Brazilian landfarm were isolated and grown on petroleum as the sole carbon source. Of 60 isolates screened for petroleum-based growth, 7 demonstrated surfactant activities by the drop–collapse methodology over various types of oils. From their growth profiles in liquid culture during 132 h, all had their first detection of surfactant activity after 96 h. Little is currently known about biosurfactant-producing microorganisms in tropical environments contaminated by hydrophobic compounds, and the search for them is essential for bioremediation and for oil recovery enhanced by microbes. Our results indicate that different petroleum-grown microorganisms showing surfactant activity can be recovered from landfarm soil in a tropical environment.

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Kropp, Kevin G., and Phillip M. Fedorak. "A review of the occurrence, toxicity,and biodegradation of condensed thiophenes found in petroleum." Canadian Journal of Microbiology 44, no. 7 (July 1, 1998): 605–22. http://dx.doi.org/10.1139/w98-045.

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Condensed thiophenes comprise a significant portion of the organosulfur compounds in petroleum and in other products from fossil fuels. Dibenzothiophene (DBT) has served as a model compound in biodegradation studies for over two decades. However, until quite recently, few other organosulfur compounds were studied, and their fates in petroleum-contaminated environments are largely unknown. This paper presents a review of the types of organosulfur compounds found in petroleum and summarizes the scant literature on toxicity studies with condensed thiophenes. Reports on the biodegradation of benzothiophene, alkylbenzothiophenes, DBT, alkylDBTs, and naphthothiophenes are reviewed with a focus on the identification of metabolites detected in laboratory cultures. In addition, recent reports on quantitative studies with DBT and naphtho[2,1-b]thiophene indicate the existence of polar sulfur-containing metabolites that have escaped detection and identification. Key words: biodegradation, condensed thiophenes, dibenzothiophene, microbial metabolism, toxicity.

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Myazin, Vladimir A., Maria V. Korneykova, Alexandra A. Chaporgina, Nadezhda V. Fokina, and Galina K. Vasilyeva. "The Effectiveness of Biostimulation, Bioaugmentation and Sorption-Biological Treatment of Soil Contaminated with Petroleum Products in the Russian Subarctic." Microorganisms 9, no. 8 (August 13, 2021): 1722. http://dx.doi.org/10.3390/microorganisms9081722.

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The effectiveness of different bioremediation methods (biostimulation, bioaugmentation, the sorption-biological method) for the restoration of soil contaminated with petroleum products in the Russian Subarctic has been studied. The object of the study includes soil contaminated for 20 years with petroleum products. By laboratory experiment, we established five types of microfungi that most intensively decompose petroleum hydrocarbons: Penicillium canescens st. 1, Penicillium simplicissimum st. 1, Penicillum commune, Penicillium ochrochloron, and Penicillium restrictum. One day after the start of the experiment, 6 to 18% of the hydrocarbons decomposed: at 3 days, this was 16 to 49%; at 7 days, 40 to 73%; and at 10 days, 71 to 87%. Penicillium commune exhibited the greatest degrading activity throughout the experiment. For soils of light granulometric composition with a low content of organic matter, a more effective method of bioremediation is sorption-biological treatment using peat or granulated activated carbon: the content of hydrocarbons decreased by an average of 65%, which is 2.5 times more effective than without treatment. The sorbent not only binds hydrocarbons and their toxic metabolites but is also a carrier for hydrocarbon-oxidizing microorganisms and prevents nutrient leaching from the soil. High efficiency was noted due to the biostimulation of the native hydrocarbon-oxidizing microfungi and bacteria by mineral fertilizers and liming. An increase in the number of microfungi, bacteria and dehydrogenase activity indicate the presence of a certain microbial potential of the soil and the ability of the hydrocarbons to produce biochemical oxidation. The use of the considered methods of bioremediation will improve the ecological state of the contaminated area and further the gradual restoration of biodiversity.

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Dealtry, Simone, Angela Michelato Ghizelini, Leda C. S. Mendonça-Hagler, Ricardo Moreira Chaloub, Fernanda Reinert, Tácio M. P. de Campos, Newton C. M. Gomes, and Kornelia Smalla. "Petroleum contamination and bioaugmentation in bacterial rhizosphere communities from Avicennia schaueriana." Brazilian Journal of Microbiology 49, no. 4 (October 2018): 757–69. http://dx.doi.org/10.1016/j.bjm.2018.02.012.

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Rajasekar, Aruliah, Sundaram Maruthamuthu, Narayanan Palaniswamy, and Annamalai Rajendran. "Biodegradation of corrosion inhibitors and their influence on petroleum product pipeline." Microbiological Research 162, no. 4 (September 2007): 355–68. http://dx.doi.org/10.1016/j.micres.2006.02.002.

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Ahmad, Abrar, Othman A. Baothman, Muhammad Shahid Nadeem, and Varish Ahmad. "Biodesulfurizing Microbes in the Petroleum Refinery Areas of Saudi Arabia." Journal of Pure and Applied Microbiology 17, no. 3 (September 1, 2023): 1737–47. http://dx.doi.org/10.22207/jpam.17.3.39.

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Gordonia sp., Rhodococcus, Paenibaccilus, Mycobacterium and many other desulfurizing strains have shown good potential for dibenzothiophene (DBT), 4, 6-Dimethyldibenzothiophene (4-6-Dimethyl dibenzothiophene) and other organosulfur biodesulfurization. These are microbes which have 4S pathway to remove S from remaining calcitarant organosulfur compounds even after deep desulfurization. Sulfur compounds present in crude oils, diesel and petrol when combust in engines they emerge out in the form of elemental Sulfur, which causes environmental and health problems. Therefore, efforts are going to remove this Sulfur compounds by Hydrodesulfurization (HDS) treatment. Some organosulfur compounds remain there even after HDS, which can only remove by highly evolved microbes residing nearby petroleum-contaminated areas in refineries zone. Nature has such adopted and evolved microbes for the bioremediation of such toxic substances. Here we have isolated and characterized highly evolved and adopted Biodesulfurizing microbes present around oil refineries in Kingdom of Saudi Arabia and prepare the culture collection of such highly evolved and adopted biodesulfurization microorganisms for future application of applied Industrial petroleum refineries, which can reduce the Sulfur load in the petroleum products. The several (10 different types) microbes have been reported in these soils to grow in sulfur compounds. Out of these microbes one microbe desulfurizes by 4S pathway. It was identified to be Rhodococcus erythropolis type named as Rhodococcus erythroplis KAU10. They show good potential for various organosulfur compounds (DBT, 2,4,6-Trimethyl Benzothiophene, Benzothiophene, Dibenzyl sulfide, Benzonaphthothiophene, Dibenzothiophene sulfone, along with crude oil and Petrol and Diesel. Isolated strain Rhodococcus erythroplis KAU10 have good potential for Biodesulfurization.

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Rahmati, Farzad, Behnam Asgari Lajayer, Najmeh Shadfar, Peter M. van Bodegom, and Eric D. van Hullebusch. "A Review on Biotechnological Approaches Applied for Marine Hydrocarbon Spills Remediation." Microorganisms 10, no. 7 (June 25, 2022): 1289. http://dx.doi.org/10.3390/microorganisms10071289.

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The increasing demand for petroleum products generates needs for innovative and reliable methods for cleaning up crude oil spills. Annually, several oil spills occur around the world, which brings numerous ecological and environmental disasters on the surface of deep seawaters like oceans. Biological and physico-chemical remediation technologies can be efficient in terms of spill cleanup and microorganisms—mainly bacteria—are the main ones responsible for petroleum hydrocarbons (PHCs) degradation such as crude oil. Currently, biodegradation is considered as one of the most sustainable and efficient techniques for the removal of PHCs. However, environmental factors associated with the functioning and performance of microorganisms involved in hydrocarbon-degradation have remained relatively unclear. This has limited our understanding on how to select and inoculate microorganisms within technologies of cleaning and to optimize physico-chemical remediation and degradation methods. This review article presents the latest discoveries in bioremediation techniques such as biostimulation, bioaugmentation, and biosurfactants as well as immobilization strategies for increasing the efficiency. Besides, environmental affecting factors and microbial strains engaged in bioremediation and biodegradation of PHCs in marines are discussed.

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Journal articles on the topic 'Petroleum – Microbiology'

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