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Bezza FA, Tichapondwa SM, Chirwa EMN. Synthesis of biosurfactant stabilized silver nanoparticles, characterization and their potential application for bactericidal purposes. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122319. [PMID: 32120206 DOI: 10.1016/j.jhazmat.2020.122319] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/23/2019] [Accepted: 02/14/2020] [Indexed: 06/10/2023]
Abstract
Uniformly dispersed silver nanoparticles (AgNPs) with remarkable colloidal stability were synthesised using chemical reduction method in lipopeptide biosurfactant reverse micelles. Transmission Electron microscopy (TEM), Scanning electron microscopy (SEM) and UV-vis spectroscopy analysis exhibited monodisperse nanoparticles with spherical morphology of diameter of 21 ± 2. The lipopeptide stabilized AgNPs displayed remarkable antibacterial activity with minimum inhibitory concentration (MIC) value of 15.625 μg/mL against Gram-negative Pseudomonas aeruginosa CB1 and Gram-positive Bacillus subtilis CN2 strains with a significant dose-dependent reduction of cell viability and loss of membrane integrity. Investigation of AgNPs internalization and dissolution assays demonstrated 42-fold higher leaching of the lipopeptide-stabilized AgNPs compared to the bare AgNPs, and concentration dependent increase in cellular uptake with subsequent damage to intracellular organelles. Further ultrastructural observation using TEM revealed internalization and strong binding of considerable amount of AgNPs on the lipopolysaccharide layer of the Gram-negative and peptidoglycans layer of Gram-positive bacteria indiscriminately, demonstrating robust antibacterial activity and potential application to treat multidrug resistant bacteria.
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Affiliation(s)
- Fisseha A Bezza
- Water Utilization and Environmental Engineering Division, Department of Chemical Engineering, University of Pretoria, Pretoria 0002, South Africa
| | - Shepherd M Tichapondwa
- Water Utilization and Environmental Engineering Division, Department of Chemical Engineering, University of Pretoria, Pretoria 0002, South Africa
| | - Evans M N Chirwa
- Water Utilization and Environmental Engineering Division, Department of Chemical Engineering, University of Pretoria, Pretoria 0002, South Africa.
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52
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Tao W, Mei C, Hamzah N. The application of surfactant colloidal gas aphrons to remediate contaminated soil: A review. JOURNAL OF CONTAMINANT HYDROLOGY 2020; 231:103620. [PMID: 32126294 DOI: 10.1016/j.jconhyd.2020.103620] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 12/05/2019] [Accepted: 01/26/2020] [Indexed: 06/10/2023]
Abstract
Surfactant solutions have been frequently studied for soil remediation. However, since they are expensive, massive consumption of surfactant solution can constrain their application. Surfactant microbubbles, or colloidal gas aphrons (CGAs), can serve as cost effective alternatives of surfactant solution because the use of CGAs reduce the amount of surfactant consumption. Moreover, CGAs can also improve the contact with the contaminated environment due to their unique surface properties, e.g. containing 40-70% of gas, small size, large interfacial areas, water-like flow properties and buoyant rise velocities. In this review paper, the properties and flow character of CGAs in soil matrix reviewed due to their relevance to soil remediation process. A comprehensive overview of the application of CGAs in flushing off organic pollutants and heavy metals, and carrying oxygen, bacteria and dissolved materials for soil remediation were provided. This paper also highlighted the limitation of CGAs application and important future research scopes.
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Affiliation(s)
- Wei Tao
- School of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, PR China..
| | - Changgen Mei
- School of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, PR China..
| | - Nurhidayah Hamzah
- Department of Water Resource and Environmental System, Faculty of Civil Engineering, Universiti Teknologi MARA, 40450 Selangor, Malaysia.
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Xu C, Yang W, Wei L, Huang Z, Wei W, Lin A. Enhanced phytoremediation of PAHs-contaminated soil from an industrial relocation site by Ochrobactrum sp. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:8991-8999. [PMID: 31321730 DOI: 10.1007/s11356-019-05830-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Nowadays, the remediation of polycyclic aromatic hydrocarbons (PAHs)-contaminated soil has received wide attention. In this work, Ochrobactrum sp. (PW) was isolated through selective enrichment from PAHs-contaminated soil in coking plant of Beijing, and the effects of PW on phytoremediation of that soil by alfalfa (Medicago sativa L.) and ryegrass (Lolium multiflorum Lam.) were investigated through pot experiments. Plant biomass, peroxidase (POD) activity, malondialdehyde (MDA) contents, soil enzyme activity (polyphenol oxidase and dehydrogenase activity), and residual concentration of PAHs in soils were determined to illustrate the ability of PW for enhancing the degradation of PAHs by plants. The results showed that the fresh weight of ryegrass and alfalfa inoculated with PW was significantly (p < 0.05) increased while the activity of POD and MDA contents were notably (p < 0.05) reduced than that without inoculation. Additionally, PW enhanced the activity of polyphenol oxidase and dehydrogenase in soil significantly (p < 0.05), and further enhanced the degradability of the system to PAHs. Different treatment methods could be ranked by the following order according to the degradability: SP (alfalfa + PW) > RP (ryegrass + PW) > PW (PW) > S (alfalfa) > R (ryegrass). The combined action of PW and alfalfa/ryegrass could accelerate the degradability of PAHs from soil contaminated by coking plants. PW could be used as potential bacteria to promote phytoremediation of the soil contaminated by PAHs.
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Affiliation(s)
- Congbin Xu
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Wenjie Yang
- Chinese Academy for Environmental Planning, Beijing, 100012, People's Republic of China
| | - Lianshuang Wei
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Zeyu Huang
- School of International Education, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Wenxia Wei
- Beijing Key Laboratory of Industrial Land Contamination and Remediation, Environmental Protection Research Institute of Light Industry, Beijing, 100089, People's Republic of China.
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
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Davoodi SM, Miri S, Taheran M, Brar SK, Galvez-Cloutier R, Martel R. Bioremediation of Unconventional Oil Contaminated Ecosystems under Natural and Assisted Conditions: A Review. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:2054-2067. [PMID: 31904944 DOI: 10.1021/acs.est.9b00906] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
It is a general understanding that unconventional oil is petroleum-extracted and processed into petroleum products using unconventional means. The recent growth in the United States shale oil production and the lack of refineries in Canada built for heavy crude processes have resulted in a significant increase in U.S imports of unconventional oil since 2018. This has increased the risk of incidents and catastrophic emergencies during the transportation of unconventional oils using transmission pipelines and train rails. A great deal of effort has been made to address the remediation of contaminated soil/sediment following the traditional oil spills. However, spill response and cleanup techniques (e.g., oil recuperation, soil-sediment-water treatments) showed slow and inefficient performance when it came to unconventional oil, bringing larger associated environmental impacts in need of investigation. To the best of our knowledge, there is no coherent review available on the biodegradability of unconventional oil, including Dilbit and Bakken oil. Hence, in view of the insufficient information and contrasting results obtained on the remediation of petroleum, this review is an attempt to fill the gap by presenting the collective understanding and critical analysis of the literature on bioremediation of products from the oil sand and shale (e.g., Dilbit and Bakken oil). This can help evaluate the different aspects of hydrocarbon biodegradation and identify the knowledge gaps in the literature.
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Affiliation(s)
- Seyyed Mohammadreza Davoodi
- INRS-ETE , Université du Québec , 490, Rue de la Couronne , Québec City , Québec , Canada G1K 9A9
- Department of Civil Engineering, Lassonde School of Engineering , York University, North York , Toronto , Ontario Canada M3J 1P3
| | - Saba Miri
- INRS-ETE , Université du Québec , 490, Rue de la Couronne , Québec City , Québec , Canada G1K 9A9
- Department of Civil Engineering, Lassonde School of Engineering , York University, North York , Toronto , Ontario Canada M3J 1P3
| | - Mehrdad Taheran
- INRS-ETE , Université du Québec , 490, Rue de la Couronne , Québec City , Québec , Canada G1K 9A9
| | - Satinder Kaur Brar
- INRS-ETE , Université du Québec , 490, Rue de la Couronne , Québec City , Québec , Canada G1K 9A9
- Department of Civil Engineering, Lassonde School of Engineering , York University, North York , Toronto , Ontario Canada M3J 1P3
| | | | - Richard Martel
- INRS-ETE , Université du Québec , 490, Rue de la Couronne , Québec City , Québec , Canada G1K 9A9
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55
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Gupta B, Puri S, Thakur IS, Kaur J. Comparative evaluation of growth kinetics for pyrene degradation by Acinetobacter pittii NFL and Enterobacter cloacae BT in the presence of biosurfactant. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.biteb.2019.100369] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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56
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Telesiński A, Zambrana AB, Jarnuszewski G, Curyło K, Krzyśko-Łupicka T, Pawłowska B, Cybulska K, Wróbel J, Rynkiewicz M. Effect of Rhamnolipids on Microbial Biomass Content and Biochemical Parameters in Soil Contaminated with Coal Tar Creosote. Open Life Sci 2019; 14:537-548. [PMID: 33817190 PMCID: PMC7874772 DOI: 10.1515/biol-2019-0060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 11/20/2019] [Indexed: 11/30/2022] Open
Abstract
The objective of the present study was to compare the effect of rhamnolipids on the microbial biomass content and the activity of dehydrogenases (DHA), acid phosphatase (ACP), alkaline phosphatase (ALP), and urease (URE) in soil contaminated with two types of coal tar creosote: type C and type GX-Plus. The experiment was carried out on samples of sandy clay loam under laboratory conditions. Coal tar creosote was added to soil samples at a dose of 0 and 10 g·kg−1 DM, along with rhamnolipids at a dose of 0, 10, 100, and 1000 mg·kg−1 DM. The humidity of the samples was brought to 60% maximum water holding capacity, and the samples were incubated at 20°C. Microbial and biochemical parameters were determined on days 1, 7, 21, and 63. The obtained results demonstrated that the addition of rhamnolipids did not result in any significant changes in the activity of the determined parameters in the uncontaminated soil. However, it was observed that the application of these biosurfactants, particularly at the dose of 1000 mg·kg−1 DM, largely decreased the effect of coal tar creosote on the determined parameters. Moreover, the microbial biomass and the activity of ALP and URE were found to be the best indicator of bioremediation of soil contaminated with coal tar creosote.
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Affiliation(s)
- Arkadiusz Telesiński
- Department of Plant Physiology and Biochemistry, West Pomeranian University of Technology, Szczecin, 17 Słowackiego St. 17, 71-434Szczecin, Poland
- E-mail:
| | - Ariel Brito Zambrana
- Faculty of Science and Technology, Universidad Autónoma Gabriel Rene Moreno, FACET Avenida Busch entre 2do/3er anillo, Santa Cruz, Bolivia
| | - Grzegorz Jarnuszewski
- Department of Soil Science, Grassland and Environmental Chemistry, West Pomeranian University of Technology, Szczecin, 17 Słowackiego St. 17, 71-434Szczecin, Poland
| | - Kornel Curyło
- Department of Plant Physiology and Biochemistry, West Pomeranian University of Technology, Szczecin, 17 Słowackiego St. 17, 71-434Szczecin, Poland
| | - Teresa Krzyśko-Łupicka
- Independent Department of Biotechnology and Molecular Biology, University of Opole, 6a Kardynała Kominka St., 45-035Opole, Poland
| | - Barbara Pawłowska
- Department of Biochemistry, Biotechnology and Ecotoxicology, Jan Długosz University in Częstochowa, 13/15 Armii Krajowej Av., 42-200Częstochowa, Poland
| | - Krystyna Cybulska
- Department of Chemistry, Microbiology and Environmental Biotechnology, West Pomeranian University of Technology in Szczecin, 17 Słowackiego St., 71-434Szczecin, Poland
| | - Jacek Wróbel
- Department of Plant Physiology and Biochemistry, West Pomeranian University of Technology, Szczecin, 17 Słowackiego St. 17, 71-434Szczecin, Poland
| | - Marek Rynkiewicz
- Department of Construction and Use of Technical Device, West Pomeranian University of Technology, 3 Papieża Pawła VI St., 71-459Szczecin, Poland
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57
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Abdolahnejad A, Mokhtari M, Ebrahimi AA, Nikaeen M, Shahi MA, Hajizadeh Y. Improved degradation of n-hexane vapours using a hybrid system, a photoreactor packed with TiO 2 coated-scoria granules and a multilayer biofilter. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2019; 17:1017-1027. [PMID: 32030171 PMCID: PMC6985411 DOI: 10.1007/s40201-019-00416-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
Biofiltration of hydrophobic and/or recalcitrant volatile organic compounds such as n-hexane is imperfect. In the present study, we applied a hybrid system consisting of a photoreactor packed with scoria granules coated with TiO2 and a biofilter to improve the removal efficiency of n-hexane from the air stream. The experimental results showed that the hybrid system provided higher removal efficiencies than the single biofilter process with an inlet n-hexane concentration range of 0.11-1 g-3 for empty bed residence times (EBRTs) of 30-120 s in the hybrid system. The removal efficiency of the single biofilter in EBRTs of 30, 60 and 120 s was 10.06%, 21.45%, and 45.98%, respectively. When the photoreactor was included as a pretreatment system (with residence time of 7-27 s) and the overall EBRTs of the system was adjusted to 30, 60 and 120 s, the removal efficiency of the hybrid system was increased to 39.79%, 63.08%, and 92.6%, respectively. The mass ratio of carbon dioxide produced as an indicator for n-hexane degradation in the hybrid system and the biofilter alone was 1.9 and 1.28, respectively. Bacterial community analysis with sequence analysis of 16S rDNA in the biofilter biomass revealed that Pseudomonas and Bacillus as predominant bacterial species were responsible for n-hexane biodegradation. Therefore, the application of the hybrid system is advantageous in enhanced n-hexane removal from the air stream.
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58
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Lu L, Chai Q, He S, Yang C, Zhang D. Effects and mechanisms of phytoalexins on the removal of polycyclic aromatic hydrocarbons (PAHs) by an endophytic bacterium isolated from ryegrass. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 253:872-881. [PMID: 31349196 DOI: 10.1016/j.envpol.2019.07.097] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 07/16/2019] [Accepted: 07/18/2019] [Indexed: 06/10/2023]
Abstract
Plant-endophyte synergism has been demonstrated to play a key role in the phytoremediation of contaminated water and soil. Phytoalexins, a type of chemical component in the plant apoplast, can be produced by plants in response to stimulation by endophytes. Phytoalexins may have distinct effects on the nutritional and metabolic functions of endophytes; however, direct evidence is not available to prove the effect of phytoalexins on the hydrophobic organic contaminants (HOC)-degradation activity of endophytes. In this paper, three different types of phytoalexins, coumarin, resveratrol and rutin, were selected to study their effect on the removal of polycyclic aromatic hydrocarbons (PAHs) by an endophytic bacterium Methylobacterium extorquens C1. The effects of the three phytoalexins on bacterial sorption and intracellular enzymatic activities were tested to further analyze the mechanism by which the phytoalexins affect the PAH degradation performance of M. extorquens C1. The results showed that the removal rate of PAHs by M. extorquens C1 increased in the presence of low levels of the three phytoalexins. The most effective concentrations of coumarin, resveratrol and rutin were 0.20, 0.15, and 0.25 mg/L, respectively, and the removal rate of PAHs was increased by approximately 18.3-35.0%. At the optimal concentrations, the three phytoalexins significantly promoted the sorption of PAHs by M. extorquens C1, and also enhanced the activities of catechol dioxygenases and dehydrogenase of M. extorquens C1. The positive effect of phytoalexins on both bacterial sorption and intracellular enzymatic activities promotes the overall removal of PAHs from endophytes. These results may deepen our understanding of plant-microbe cooperative mechanisms in the degradation of organic pollutants and provide a new approach for chemically enhanced bioremediation in the future.
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Affiliation(s)
- Li Lu
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qiwei Chai
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Shanying He
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China.
| | - Chunping Yang
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Dong Zhang
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
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59
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Balseiro-Romero M, Monterroso C, Kidd PS, Lu-Chau TA, Gkorezis P, Vangronsveld J, Casares JJ. Modelling the ex situ bioremediation of diesel-contaminated soil in a slurry bioreactor using a hydrocarbon-degrading inoculant. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 246:840-848. [PMID: 31229766 DOI: 10.1016/j.jenvman.2019.06.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 06/04/2019] [Accepted: 06/09/2019] [Indexed: 06/09/2023]
Abstract
Bioremediation is a soil clean-up technique which exploits the metabolic capacity of microorganisms to degrade soil contaminants. A model was developed to simulate the ex situ bioremediation of a diesel-contaminated soil in a bio-slurry reactor inoculated with a diesel-degrading bacterial strain. Mass transfer processes involving desorption of diesel from soil to water and volatilization of diesel from water, and biodegradation by the bacterial inoculant were included in the model by using Weibull sigmoid kinetics and logistic/Monod kinetics respectively. Model parameters were estimated in batch-based abiotic and biodegradation experiments. Sensitivity analysis revealed the importance of maintaining a high bacterial density in the system for maximum bioremediation efficiency. The model was validated using a pilot bioreactor monitored for 528 h, which removed almost 90% of the diesel present in the system. The results revealed the capacity of the model to predict the bioremediation efficiency under different scenarios by adapting the input parameters to each system.
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Affiliation(s)
- María Balseiro-Romero
- Department of Chemical Engineering, Institute of Technology, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain; UMR ECOSYS, AgroParisTech, Université Paris-Saclay, Avenue Lucien Brétignières, 78850, Thiverval-Grignon, France.
| | - Carmen Monterroso
- Department of Soil Science and Agricultural Chemistry, Faculty of Biology, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Petra S Kidd
- Instituto de Investigacións Agrobiolóxicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), 15705, Santiago de Compostela, Spain
| | - Thelmo A Lu-Chau
- Department of Chemical Engineering, Institute of Technology, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Panagiotis Gkorezis
- Centre for Environmental Sciences, University of Hasselt, BE3590, Diepenbeek, Belgium
| | - Jaco Vangronsveld
- Centre for Environmental Sciences, University of Hasselt, BE3590, Diepenbeek, Belgium
| | - Juan J Casares
- Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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60
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Mehetre GT, Dastager SG, Dharne MS. Biodegradation of mixed polycyclic aromatic hydrocarbons by pure and mixed cultures of biosurfactant producing thermophilic and thermo-tolerant bacteria. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 679:52-60. [PMID: 31082602 DOI: 10.1016/j.scitotenv.2019.04.376] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/06/2019] [Accepted: 04/25/2019] [Indexed: 06/09/2023]
Abstract
Applicability of thermophilic and thermo-tolerant microorganisms for biodegradation of polycyclic aromatic hydrocarbons (PAHs) with low water solubility is an interesting strategy for improving the biodegradation efficiency. In this study, we evaluated utility of thermophilic and thermo-tolerant bacteria isolated from Unkeshwar hot spring (India) for biodegradation of four different PAHs. Water samples were enriched in mineral salt medium (MSM) containing a mixture of four PAHs compounds (anthracene: ANT, fluorene: FLU, phenanthrene: PHE and pyrene: PYR) at 37 °C and 50 °C. After growth based screening, four potent strains obtained which were identified as Aeribacillus pallidus (UCPS2), Bacillus axarquiensis (UCPD1), Bacillus siamensis (GHP76) and Bacillus subtilis subsp. inaquosorum (U277) based on the 16S rRNA gene sequence analysis. Degradation of mixed PAH compounds was evaluated by pure as well as mixed cultures under shake flask conditions using MSM supplemented with 200 mg/L concentration of PAHs (50 mg/L of each compound) for 15 days at 37 °C and 50 °C. A relatively higher degradation of ANT (92%- 96%), FLU (83% - 86%), PHE (16% - 54%) and PYR (51% - 71%) was achieved at 50 °C by Aeribacillus sp. (UCPS2) and mixed culture. Furthermore, crude oil was used as a substrate to study the degradation of same PAHs using these organisms which also revealed with similar results with the higher degradation at 50 °C. Interestingly, PAH-degrading strains were also positive for biosurfactant production. Biosurfactants were identified as the variants of surfactins (lipopeptide biosurfactants) based on analytical tools and phylogenetic analysis of the surfactin genes. Overall, this study has shown that hot spring microbes may have a potential for PAHs degradation and also biosurfactant production at a higher temperature, which could provide a novel perspective for removal of PAHs residues from oil contaminated sites.
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Affiliation(s)
- Gajanan T Mehetre
- National Collection of Industrial Microorganisms (NCIM), CSIR-National Chemical Laboratory, Pune, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Syed G Dastager
- National Collection of Industrial Microorganisms (NCIM), CSIR-National Chemical Laboratory, Pune, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Mahesh S Dharne
- National Collection of Industrial Microorganisms (NCIM), CSIR-National Chemical Laboratory, Pune, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
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61
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Wang Y, Nie M, Diwu Z, Lei Y, Li H, Bai X. Characterization of trehalose lipids produced by a unique environmental isolate bacteriumRhodococcus qingshengiistrain FF. J Appl Microbiol 2019; 127:1442-1453. [DOI: 10.1111/jam.14390] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/05/2019] [Accepted: 07/16/2019] [Indexed: 11/27/2022]
Affiliation(s)
- Y. Wang
- School of Environmental and Municipal Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
- Key Laboratory of Membrane Separation of Shaanxi Province Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
| | - M. Nie
- School of Environmental and Municipal Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
- Key Laboratory of Membrane Separation of Shaanxi Province Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
| | - Z. Diwu
- School of Environmental and Municipal Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
- Key Laboratory of Membrane Separation of Shaanxi Province Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
| | - Y. Lei
- School of Environmental and Municipal Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
- Key Laboratory of Membrane Separation of Shaanxi Province Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
| | - H. Li
- School of Environmental and Municipal Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
- Key Laboratory of Membrane Separation of Shaanxi Province Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
| | - X. Bai
- School of Environmental and Municipal Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
- Key Laboratory of Membrane Separation of Shaanxi Province Xi'an University of Architecture and Technology Xi'an Shaanxi Province The People's Republic of China
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62
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French KE, Terry N. A High-Throughput Fluorescence-Based Assay for Rapid Identification of Petroleum-Degrading Bacteria. Front Microbiol 2019; 10:1318. [PMID: 31275261 PMCID: PMC6594354 DOI: 10.3389/fmicb.2019.01318] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 05/27/2019] [Indexed: 01/05/2023] Open
Abstract
Over the past 100 years, oil spills and long-term waste deposition from oil refineries have significantly polluted the environment. These contaminants have widespread negative effects on human health and ecosystem functioning. Natural attenuation of long chain and polyaromatic hydrocarbons is slow and often incomplete. Bioaugmentation of polluted soils with indigenous bacteria that naturally consume petroleum hydrocarbons could speed up this process. However, the characterization of bacterial crude oil degradation efficiency – which often relies upon expensive, highly specialized gas-chromatography mass spectrometry analyses – can present a substantial bottleneck in developing and implementing these bioremediation strategies. Here, we develop a low-cost, rapid, high-throughput fluorescence-based assay for identifying wild-type bacteria that degrade crude oil using the dye Nile Red. We show that Nile Red fluoresces when in contact with crude oil and developed a robust linear model to calculate crude oil content in liquid cell cultures based on fluorescence intensity (FI). To test whether this assay could identify bacteria with enhanced metabolic capacities to break down crude oil, we screened bacteria isolated from a former Shell Oil refinery in Bay Point, CA, and identified one strain (Cupriavidus sp. OPK) with superior crude oil depletion efficiencies (up to 83%) in only 3 days. We further illustrate that this assay can be combined with fluorescence microscopy to study how bacteria interact with crude oil and the strategies they use to degrade this complex substance. We show for the first time that bacteria use three key strategies for degrading crude oil: biofilm formation, direct adherence to oil droplets, and vesicle encapsulation of oil. We propose that the quantitative and qualitative data from this assay can be used to develop new bioremediation strategies based on bioaugmentation and/or biomimetic materials that imitate the natural ability of bacteria to degrade crude oil.
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Affiliation(s)
- Katherine E French
- Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA, United States
| | - Norman Terry
- Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA, United States
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Shang F, Wang Y, Wang J, Zhang L, Cheng P, Wang S. Determination of three polycyclic aromatic hydrocarbons in tea using four-way fluorescence data coupled with third-order calibration method. Microchem J 2019. [DOI: 10.1016/j.microc.2019.02.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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64
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Meng L, Li W, Bao M, Sun P. Great correlation: Biodegradation and chemotactic adsorption of Pseudomonas synxantha LSH-7' for oil contaminated seawater bioremediation. WATER RESEARCH 2019; 153:160-168. [PMID: 30711791 DOI: 10.1016/j.watres.2019.01.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 11/19/2018] [Accepted: 01/20/2019] [Indexed: 06/09/2023]
Abstract
Oil Contaminated Seawaters is treated by biological processes of sorption or degradation. Considering the chemotaxis of bacteria, they migrate towards a better way to survive. However, the information concerning the chemotactic biosorption of microorganism is severely limited thus far. Therefore, chemotactic biosorption a novel way of sorption was put forward. The equation was defined as: A chemotactic biosorption = A extracellular biosorption - A passive extracellular biosorption + E intracellular. Effects of controlling parameters like pollutant, fertilizer, sediments and surfactant on bacterial chemotactic sorption capacity of tetradecane, hexadecane, phenanthrene or pyrene were described in detail. The results showed bacterial chemotactic biosorption would be promoted under the conditions of low pollutant concentration, high sediment concentration and fertilizer. However, Tween 80 would promote the sorption of pollutants onto bacterial cells depending on the concentration of surfactant. Correlational analyses were conducted with the biodegradation rate and the concentration (mg/g) of hydrocarbons measured in the biomass. We concluded there existed great correlation between them. Biodegradation rate were all linearly correlated with the concentration (mg/g) of hydrocarbons measured in the biomass in all respects with tetradecane (R2 = 0.9873), hexadecane (R2 = 0.9705), phenanthrene (R2 = 0.9098) and pyrene (R2 = 0.9424). The above idea may provide a new insight into oil spill bioremediation from sorption to degradation.
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Affiliation(s)
- Long Meng
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education / Institute for Advanced Ocean Study, Ocean University of China, Qingdao, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, China
| | - Wen Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education / Institute for Advanced Ocean Study, Ocean University of China, Qingdao, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, China
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education / Institute for Advanced Ocean Study, Ocean University of China, Qingdao, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, China.
| | - Peiyan Sun
- Key Laboratory of Marine Spill Oil Identification and Damage Assessment Technology, North China Sea Environmental Monitoring Center, State Oceanic Administration, Qingdao, China
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65
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Madrid F, Rubio-Bellido M, Villaverde J, Peña A, Morillo E. Natural and assisted dissipation of polycyclic aromatic hydrocarbons in a long-term co-contaminated soil with creosote and potentially toxic elements. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 660:705-714. [PMID: 30743956 DOI: 10.1016/j.scitotenv.2018.12.376] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 12/10/2018] [Accepted: 12/24/2018] [Indexed: 05/20/2023]
Abstract
An enhanced bioremediation strategy was applied to an industrial soil co-contaminated with Polycyclic Aromatic Hydrocarbons (PAHs) and Potentially Toxic Elements (PTEs). Hydroxypropyl-β-cyclodextrin (HPBCD) and a natural mixture of two rhamnolipids (RL) were added to increase PAHs bioavailability, and combined with a microbial consortium (MC) to biodegrade soil PAHs. Bioavailability of only six PAHs (3-, 4-ring PAHs) increased when using HPBCD, with a maximum increase about 2.8-fold higher. The highest dose of HPBCD (5%) enhanced PAH degradation, with the best results for 4-ring PAHs with treatments of HPBCD + MC (up to 48% degradation for pyrene and 43% for fluoranthene), whereas dissipation for 5-ring PAHs was very low and for 6-ring was negligible. The use of RL increased the bioavailability of 13 of the 16 PAHs studied, reaching up to 60-fold higher values for phenanthrene or 18-fold higher for acenaphtene. RL addition did not show degradation improvement in any situation, and even inhibited the scarce degradation observed in the control treatment. The high increase in availability of both PAHs and mainly PTEs when using RL as amendment could make them toxic for microorganisms. In fact, Microtox Acute Toxicity test using Aliivibrio fischeri and the absence of colony forming units (CFUs) of indigenous bacteria demonstrated the extremely high levels of toxicity in RL treated soil.
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Affiliation(s)
- F Madrid
- Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS-CSIC), Apdo. 1052, 41080 Sevilla, Spain
| | - M Rubio-Bellido
- Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS-CSIC), Apdo. 1052, 41080 Sevilla, Spain
| | - J Villaverde
- Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS-CSIC), Apdo. 1052, 41080 Sevilla, Spain
| | - A Peña
- Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Avda. de las Palmeras 4, 18100, Armilla, Granada, Spain
| | - E Morillo
- Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS-CSIC), Apdo. 1052, 41080 Sevilla, Spain.
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66
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Marchut-Mikołajczyk O, Drożdżyński P, Januszewicz B, Domański J, Wrześniewska-Tosik K. Degradation of ozonized tire rubber by aniline - Degrading Candida methanosorbosa BP6 strain. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:8-14. [PMID: 30583113 DOI: 10.1016/j.jhazmat.2018.12.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 12/12/2018] [Accepted: 12/13/2018] [Indexed: 05/26/2023]
Abstract
Aniline-degrading yeast strain - Candida methanosorbosa BP-6 was tested for its ability to degrade ground tire rubber, treated and non-treated with ozone. The protein content, respiratory activity, critical oxygen concentration (COC) and emulsifying activity of the yeast strain were monitored during 21 day degradation process. The effects of biodegradation were evaluated using aldehyde detection, Scanning Electrone Microscope (SEM) and Fourier-transform infrared spectroscopy (FTIR) analysis. Pre-treatment of ground tire rubber with ozone resulted in lower microbial growth. However, metabolic condition of the C. methanosorbosa BP-6 yeast strain was higher in sample with ozonized tire rubber. Furthermore, the COC values in the last days of the process were about 30% lower regarding non-ozonized polymer. Also, the ozonization of tire rubber resulted in higher biosurfactant production of the yeast strain. The roughness and visible gaps in rubber matrix (SEM analysis) confirmed the ability of Candida methanosorbosa BP-6 yeast strain for tire rubber biodegradation.
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Affiliation(s)
- Olga Marchut-Mikołajczyk
- Faculty of Biotechnology and Food Sciences, Institute of Technical Biochemistry, Lodz University of Technology, Lodz, Poland.
| | - Piotr Drożdżyński
- Faculty of Biotechnology and Food Sciences, Institute of Technical Biochemistry, Lodz University of Technology, Lodz, Poland
| | - Bartłomiej Januszewicz
- Faculty of Mechanical Engineering, Institute of Material Science and Engineering, Lodz University of Technology, Lodz, Poland
| | | | - Krystyna Wrześniewska-Tosik
- Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Lodz, Poland
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67
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Sampaio CJS, de Souza JRB, Damião AO, Bahiense TC, Roque MRA. Biodegradation of polycyclic aromatic hydrocarbons (PAHs) in a diesel oil-contaminated mangrove by plant growth-promoting rhizobacteria. 3 Biotech 2019; 9:155. [PMID: 30944802 DOI: 10.1007/s13205-019-1686-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 03/19/2019] [Indexed: 12/29/2022] Open
Abstract
In this study, Rhizophora mangle L. mangrove plants and plant growth-promoting bacteria were evaluated for their ability to degrade polycyclic aromatic hydrocarbons in diesel oil-contaminated sediment. The diesel-contaminated soil was sown with plant growth-promoting bacteria in the R. mangle L. rhizosphere and monitored for 120 days in a greenhouse. The plant growth-promoting bacteria Pseudomonas aeruginosa and Bacillus sp. were analyzed for their ability to degrade eight priority polycyclic aromatic hydrocarbons, achieving a removal rate for naphthalene (80%), acenaphthene (> 60%), anthracene (> 50%), benzo(a)anthracene (> 60%), benzo(a)pyrene (> 50%) and dibenzo(a,h)anthracene (> 90%) in the treatments with and without plants. R. mangle L. demonstrated a removal rate above 50% for acenaphthene and fluoranthene. The bacterial strains promoted the development of the plant propagule in 55% of sediment contaminated with diesel. Scanning electron microscopy revealed the formation of biofilms by the strains in the roots of the plants in contact with the diesel. Thus, the interaction between Rhizophora mangle L. and the bacterial strains (Bacillus sp. and P. aeruginosa) demonstrated the potential of the strains to degrade diesel and bioremediate mangroves impacted by diesel oil.
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68
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Meng L, Li W, Bao M, Sun P. Effect of surfactants on the solubilization, sorption and biodegradation of benzo (a) pyrene by Pseudomonas aeruginosa BT-1. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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69
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Hentati D, Chebbi A, Hadrich F, Frikha I, Rabanal F, Sayadi S, Manresa A, Chamkha M. Production, characterization and biotechnological potential of lipopeptide biosurfactants from a novel marine Bacillus stratosphericus strain FLU5. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 167:441-449. [PMID: 30384057 DOI: 10.1016/j.ecoenv.2018.10.036] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 09/25/2018] [Accepted: 10/10/2018] [Indexed: 05/21/2023]
Abstract
This work aimed at studying the potential of a new hydrocarbonoclastic marine bacterium, Bacillus stratosphericus FLU5, to produce an efficient surface-active agent BS-FLU5. Biosurfactant production was examined on different carbon sources; using the surface tension measurement and the oil displacement test. Strain FLU5 showed its capacity to produce biosurfactants from all tested substrates, in particular the residual frying oil, which is a cheap renewable carbon source alternative, thus minimizing the high cost of producing those surfactants. MALDI-TOF MS/MS analysis confirmed the presence of lipopeptides, which are identified as members of surfactin and pumilacidin series. The critical micelle concentration (CMC) of the purified lipopeptides produced by strain FLU5 was 50 mg/l. At this concentration, the surface tension of the water was reduced from 72 to 28 mN/m. Furthermore, the crude lipopeptides showed an interesting stability against a broad range of pH, temperature and salinity. In addition, the application of BS-FLU5 in oil recovery from hydrocarbons-contaminated soil (used motor oil) showed that it was more effective on the hydrocarbon-remobilization than some tested synthetic surfactants. Interestingly, the biosurfactant BS-FLU5 showed a negligible cytotoxic effect against the mammalian cells HEK293. These results highlight the applicability of the lipopeptides BS-FLU5 in different fields, especially in environmental remediation processes.
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Affiliation(s)
- Dorra Hentati
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia
| | - Alif Chebbi
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia
| | - Fatma Hadrich
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia
| | - Ilhem Frikha
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia
| | - Francesc Rabanal
- Section of Organic Chemistry, Department of Inorganic and Organic Chemistry, Faculty of Chemistry, University of Barcelona, Martí i Franquès, 1, 08028 Barcelona, Spain
| | - Sami Sayadi
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia
| | - Angeles Manresa
- Section of Microbiology, Department of Biology, Health and Environment, Faculty of Pharmacy, University of Barcelona, Joan XXIII s/n, 08028 Barcelona, Spain
| | - Mohamed Chamkha
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia.
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70
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Li Y, Liao X, Huling SG, Xue T, Liu Q, Cao H, Lin Q. The combined effects of surfactant solubilization and chemical oxidation on the removal of polycyclic aromatic hydrocarbon from soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 647:1106-1112. [PMID: 30180319 PMCID: PMC7285956 DOI: 10.1016/j.scitotenv.2018.07.420] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 07/28/2018] [Accepted: 07/30/2018] [Indexed: 05/07/2023]
Abstract
A method for the remediation of polycyclic aromatic hydrocarbons (PAHs) contaminated soils was proposed involving a combination of surfactant-aided soil washing and chemical oxidation by activated persulfate (SP). In this study, Triton X-100 (TX-100) and SP was applied to the soil, either concurrently or sequentially. Results indicated that surfactant followed by amendment with a solution of SP, TX-100 + SP(l), was most effective in decreasing PAHs concentrations in a sandy loam soil (SS) and a silty clay soil (NS) from 1220 mg/kg and 2730 mg·kg-1 to 414 mg·kg-1 and 180 mg·kg-1, respectively. Compared with extraction alone and oxidation alone, TX-100 + SP(l) increased the removal of PAHs by 10-20%. TX-100 improved the degradation of 3-4 ring PAHs (M-PAHs) and 5-6 ring PAHs (H-PAHs) in SS, by approximately 8%-11%. The oxygenated polycyclic aromatic hydrocarbons (oxy-PAHs) including furans and xanthene exhibited greater reductions in soil when amended with the TX-100 and SP, than under TX-100 extraction or SP oxidation alone. Overall, increased removal of PAHs in contaminated soil can occur through simultaneous application of TX-100 and SP, relative to the sole use of TX-100 or SP. The sequential combination of surfactant and oxidant was most effective for the elimination of PAHs, especially for M-PAHs and H-PAHs in sandy loam contaminated soil.
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Affiliation(s)
- You Li
- Key Laboratory of Land Surface Pattern and Simulation, Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Science (CAS), Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyong Liao
- Key Laboratory of Land Surface Pattern and Simulation, Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Science (CAS), Beijing 100101, China.
| | - Scott G Huling
- U.S. Environmental Protection Agency, National Risk Management Research Laboratory, Ground Water and Ecosystems Restoration Division, Ada, OK, United States
| | - Tao Xue
- Key Laboratory of Land Surface Pattern and Simulation, Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Science (CAS), Beijing 100101, China
| | - Qiongzhi Liu
- Key Laboratory of Land Surface Pattern and Simulation, Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Science (CAS), Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongying Cao
- Key Laboratory of Land Surface Pattern and Simulation, Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Science (CAS), Beijing 100101, China
| | - Qintie Lin
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China
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71
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Zdarta A, Smułek W, Trzcińska A, Cybulski Z, Kaczorek E. Properties and potential application of efficient biosurfactant produced by Pseudomonas sp. KZ1 strain. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2019; 54:110-117. [PMID: 30614383 DOI: 10.1080/10934529.2018.1530537] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/29/2018] [Accepted: 09/15/2018] [Indexed: 06/09/2023]
Abstract
Increasing use of biosurfactants has stimulated the search for new and efficient biosurfactant-producing bacterial strains, preferably nonpathogenic ones. The aim of the present study was to characterize a new isolated Pseudomonas sp. KZ1 strain and its exocellular surface active compounds. After examining several mineral media of different compositions, the bioreactor-scale production of biosurfactants under optimum conditions was tested. Then, the composition of the isolated biosurfactants was investigated by Fourier-transform infrared spectroscopy and gas chromatography-mass spectrometry analysis and their surface active properties were characterized by adsorption parameters. The results indicated that the Pseudomonas sp. KZ1 biosurfactant had the critical micelle concentration of 0.12 g L-1 and decreased the surface tension decreased to 31.7 mN m-1. Moreover, the biosurfactant increased the rate of biodegradation of diesel oil by the strains: Pseudomonas sp. KZ1, Pseudomonas sp. OS4 and Achromobacter sp. KW1. The obtained biosurfactant showing attractive properties is a promising and much 'greener' alternative in the application for surfactant-enhanced biodegradation of hydrocarbons.
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Affiliation(s)
- Agata Zdarta
- a Institute of Chemical Technology and Engineering , Poznan University of Technology , Poznan , Poland
| | - Wojciech Smułek
- a Institute of Chemical Technology and Engineering , Poznan University of Technology , Poznan , Poland
| | - Anna Trzcińska
- a Institute of Chemical Technology and Engineering , Poznan University of Technology , Poznan , Poland
| | - Zefiryn Cybulski
- b Department of Microbiology , Greater Poland Cancer Centre , Poznan , Poland
| | - Ewa Kaczorek
- a Institute of Chemical Technology and Engineering , Poznan University of Technology , Poznan , Poland
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72
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de Souza Pohren R, Rocha JAV, Horn KA, Vargas VMF. Bioremediation of soils contaminated by PAHs: Mutagenicity as a tool to validate environmental quality. CHEMOSPHERE 2019; 214:659-668. [PMID: 30292048 DOI: 10.1016/j.chemosphere.2018.08.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/05/2018] [Accepted: 08/06/2018] [Indexed: 06/08/2023]
Abstract
Bioremediation can be used as one of the decontamination techniques for areas contamined by polycyclic aromatic hydrocarbons (PAHs). However the effective biodegradation of these compounds must take into account the possible toxic and mutagenic effects that might persist. In this study the mutagenic potential of soil samples from an area contaminated by wood preservatives was evaluated. The area had already been submitted to a simulated bioremediation process in a microcosm, using two different inoculums (1 and 2), and comparing them to the decay of PAHs. Organic extracts were prepared before and after bioremediation, where the 16 PAHs considered a priority by USEPA were analyzed and tested using the Salmonella/microsome assay. The extracts were analyzed in strains TA98, TA97a and TA100 (+S9mix/-S9mix), YG1041 and YG1042. Considering Inoculum 1 only as bioaugmented and Inoculum 2 also stimulated and enriched, the concentrations of PAHs and mutagenic effect were different. The former identified a greater reduction of mutagenesis and a smaller decrease of PAHs while the latter showed greater mutagenic power even associated with the greatest reduction of PAHS. The possible generation of degradation byproducts with high mutagenic power after a partial biodegradation process can be considered. In strains YG1041 and YG 1042 the mutagenesis values before bioremediation were 747 and 567 rev/g soil, respectively. Although the efficiency of bioremediation was observed, the associated damage indicates that the analysis of contaminants and their relationship with mutagenic effects are a fundamental stage for the effective evaluation of the risks and efficiency of bioremediation processes.
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Affiliation(s)
- Roberta de Souza Pohren
- Programa de Pós-graduação em Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Cx Postal 15007, CEP 91501-970, Porto Alegre, RS, Brazil; Departamento de Pesquisas e Análises Laboratoriais, Fundação Estadual de Proteção Ambiental Henrique Luís Roessler (FEPAM), Rua Aurélio Porto, 37, 90620-090, Porto Alegre, RS, Brazil; Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Av. Itália, km 8, Carreiros, CEP, 96.203-900, Rio Grande, RS, Brazil.
| | - Jocelita Aparecida Vaz Rocha
- Programa de Pós-graduação em Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Cx Postal 15007, CEP 91501-970, Porto Alegre, RS, Brazil; Departamento de Pesquisas e Análises Laboratoriais, Fundação Estadual de Proteção Ambiental Henrique Luís Roessler (FEPAM), Rua Aurélio Porto, 37, 90620-090, Porto Alegre, RS, Brazil
| | - Kauê Assis Horn
- Programa de Pós-graduação em Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Cx Postal 15007, CEP 91501-970, Porto Alegre, RS, Brazil; Departamento de Pesquisas e Análises Laboratoriais, Fundação Estadual de Proteção Ambiental Henrique Luís Roessler (FEPAM), Rua Aurélio Porto, 37, 90620-090, Porto Alegre, RS, Brazil
| | - Vera Maria Ferrão Vargas
- Programa de Pós-graduação em Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Cx Postal 15007, CEP 91501-970, Porto Alegre, RS, Brazil; Departamento de Pesquisas e Análises Laboratoriais, Fundação Estadual de Proteção Ambiental Henrique Luís Roessler (FEPAM), Rua Aurélio Porto, 37, 90620-090, Porto Alegre, RS, Brazil.
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Sun W, Cao W, Jiang M, Saren G, Liu J, Cao J, Ali I, Yu X, Peng C, Naz I. Isolation and characterization of biosurfactant-producing and diesel oil degrading Pseudomonas sp. CQ2 from Changqing oil field, China. RSC Adv 2018; 8:39710-39720. [PMID: 35558056 PMCID: PMC9091294 DOI: 10.1039/c8ra07721e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 11/20/2018] [Indexed: 11/21/2022] Open
Abstract
In the present research investigation, 13 indigenous bacteria (from CQ1 to CQ13) were isolated from soil collected from Changqing oil field of Xi'an, China. Four promising biosurfactant producers (CQ1, CQ2, CQ4, and CQ13) were selected through primary screening among these 13 strains, including via drop collapse and oil-spreading methods. However, only the strain CQ2 showed the best biosurfactant production and was further screened by hemolytic assay, cetyl trimethyl ammonium bromide (CTAB), surface tension and emulsifying activity. The bacterium CQ2 has the ability to produce about 3.015 g L-1 of biosurfactant using glucose as the sole carbon source without any optimization. The produced biosurfactant could greatly reduce surface tension from 72.66 to 24.72 mN m-1 with a critical micelle concentration (CMC) of 30 mg L-1 and emulsify diesel oil up to 60.1%. The cell-free broth was found to be stable in wide temperature (4-100 °C), pH (6-12) and salinity (2-20%) ranges for surface and emulsifying activity. This biosurfactant was preliminarily found to be of a glycolipid nature as evident from thin-layer chromatographic (TLC) and Fourier transform infra-red spectroscopic (FTIR) analyses. Moreover, CQ2 was able to degrade 54.7% of diesel oil, which surprisingly could form a substantial amount of bioflocculants during the degradation process. Furthermore, the 16S rDNA sequence using the Genbank BLAST tool revealed that isolated CQ2 was closely related to species of Pseudomonas genus and, thus, was entitled Pseudomonas sp. CQ2. The results of residual diesel oil contents measured by GC-MS showed that C7-C28 hydrocarbons could be degraded by Pseudomonas sp. CQ2. Thus, these findings revealed that CQ2 could be applied for remediation of diesel oil/petroleum-contaminated waters and soils on a large scale.
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Affiliation(s)
- Wuyang Sun
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China Qingdao 266100 China +86 532 66782011
- College of Environmental Science and Engineering, Ocean University of China Qingdao 266100 China
| | - Wenrui Cao
- The Institute of Oceanology, Chinese Academy of Sciences Qingdao 266071 China
| | - Mingyu Jiang
- The Institute of Oceanology, Chinese Academy of Sciences Qingdao 266071 China
| | - Gaowa Saren
- The Institute of Oceanology, Chinese Academy of Sciences Qingdao 266071 China
| | - Jiwei Liu
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China Qingdao 266100 China +86 532 66782011
- College of Environmental Science and Engineering, Ocean University of China Qingdao 266100 China
- School of Environmental and Chemical Engineering, Zhaoqing University Zhaoqing 526061 China
| | - Jiangfei Cao
- School of Environmental and Chemical Engineering, Zhaoqing University Zhaoqing 526061 China
| | - Imran Ali
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China Qingdao 266100 China +86 532 66782011
- College of Environmental Science and Engineering, Ocean University of China Qingdao 266100 China
| | - Xinke Yu
- The Institute of Oceanology, Chinese Academy of Sciences Qingdao 266071 China
| | - Changsheng Peng
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China Qingdao 266100 China +86 532 66782011
- College of Environmental Science and Engineering, Ocean University of China Qingdao 266100 China
- School of Environmental and Chemical Engineering, Zhaoqing University Zhaoqing 526061 China
| | - Iffat Naz
- Department of Biology, Deanship of Educational Services, Qassim University Buraidah 51452 Kingdom of Saudi Arabia +966533897891
- Department Microbiology, Quaid-i-Azam University Islamabad Pakistan
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Hou N, Zhang N, Jia T, Sun Y, Dai Y, Wang Q, Li D, Luo Z, Li C. Biodegradation of phenanthrene by biodemulsifier-producing strain Achromobacter sp. LH-1 and the study on its metabolisms and fermentation kinetics. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 163:205-214. [PMID: 30055385 DOI: 10.1016/j.ecoenv.2018.07.064] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 06/21/2018] [Accepted: 07/17/2018] [Indexed: 06/08/2023]
Abstract
Despite many reports of the use of biodegradation to remove contaminants, the biodegradation of polycyclic aromatic hydrocarbons (PAHs) is challenging because of the hydrophobicities and low aqueous solubilities of most PAHs. In this study, phenanthrene (PHE) was used as a sole carbon and energy source to screen and identify Achromobacter sp. LH-1 for the production of biodemulsifiers that enhance the bioavailability and solubilization of PAHs. LH-1 achieved a 94% degradation rate and a 40% mineralization rate with 100 mg/L PHE. Additionally, LH-1 degraded various PAHs, and the factors that influenced the growth and PAHs degradation activity of LH-1 were not only the toxicities and structures of the substances but also the acclimation of LH-1 to these substances. Three kinetic models were used to describe the fermentation processes of cell growth, product formation and substrate degradation over time. Finally, multiple PHE degradation pathways were proposed to be utilized by strain LH-1.
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Affiliation(s)
- Ning Hou
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Nannan Zhang
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Tingting Jia
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Yang Sun
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Yanfei Dai
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Qiquan Wang
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Dapeng Li
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Zhengkai Luo
- Heilongjiang University of Traditional Chinese Medicine, Harbin 150030, Heilongjiang, PR China
| | - Chunyan Li
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China.
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75
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The Impact of Biosurfactants on Microbial Cell Properties Leading to Hydrocarbon Bioavailability Increase. COLLOIDS AND INTERFACES 2018. [DOI: 10.3390/colloids2030035] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The environment pollution with hydrophobic hydrocarbons is a serious problem that requires development of efficient strategies that would lead to bioremediation of contaminated areas. One of the common methods used for enhancement of biodegradation of pollutants is the addition of biosurfactants. Several mechanisms have been postulated as responsible for hydrocarbons bioavailability enhancement with biosurfactants. They include solubilization and desorption of pollutants as well as modification of bacteria cell surface properties. The presented review contains a wide discussion of these mechanisms in the context of alteration of bioremediation efficiency with biosurfactants. It brings new light to such a complex and important issue.
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Abstract
Environmental pollution arising from metal(loid)s is a result of industrialization, and has led to serious health issues. Conventional methods of metal(loid) removal often results in generation of secondary waste which is toxic to the environment. Bioremediation in combination with physicochemical techniques offer an excellent and effective means of removal. The use of secondary metabolites and extracellular polymers produced by microorganisms is an effective procedure employed in metal(loid) sequestration and reduction in toxicity of contaminated environments. These biopolymers have different chemical structures and have shown varied selectivity to different metal(loid)s. This review discusses various microbial polymers, their mechanism of metal(loid) removal and their potential application in remediation of contaminated environment.
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77
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Genome Sequencing and Analysis of Strains Bacillus sp. AKBS9 and Acinetobacter sp. AKBS16 for Biosurfactant Production and Bioremediation. Appl Biochem Biotechnol 2018; 187:518-530. [DOI: 10.1007/s12010-018-2828-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 06/21/2018] [Indexed: 01/12/2023]
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Vasudevan V, Gayathri KV, Krishnan MEG. Bioremediation of a pentacyclic PAH, Dibenz(a,h)Anthracene- A long road to trip with bacteria, fungi, autotrophic eukaryotes and surprises. CHEMOSPHERE 2018; 202:387-399. [PMID: 29579674 DOI: 10.1016/j.chemosphere.2018.03.074] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 02/15/2018] [Accepted: 03/11/2018] [Indexed: 06/08/2023]
Abstract
Dibenz(a,h)Anthracene (DBahA), classified as a probable human carcinogen (B2) is the first Poly Aromatic Hydrocarbons (PAH) to be chemically purified and used for cancer-based studies. Till date, only 30 papers focus on the bioremediation aspects of DBahA out of more than 200 research publications for each of the other 15 priority PAHs. Thus, the review raises an alarm and calls for efficient bioremediation strategies for considerable elimination of this compound from the environment. This article reviews and segregates the available papers on DBahA bioremoval from the beginning till date into bacteria, fungi and plant-mediated remediation and offers suggestions for the most competent and cost-effective modes to bioremove DBahA from the environment. One of the proficient ways to get rid of this PAH could with the use of biosurfactant-enriched bacterial consortium in DBahA polluted environment, which is given considerable importance here. Among the bacterial and fungal microbiomes, unquestionably the former are the beneficiaries which utilize the breakdown products of this PAH metabolized by the latter. Nevertheless, the use of plant communities for efficient DBahA utilization through fibrous root system is also discussed at length. The current status of DBahA as reflected by the publications at https://www.ncbi.nlm.nih.gov and recommendations among the explored groups [bacterial/fungal/plant communities] for better DBahA elimination are pointed out. Finally, the review emphasizes the pros and cons of all the methodologies used for selective/combinatorial removal of DBahA and present the domain to the researchers to carry forward by incorporating their individual ideas.
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Affiliation(s)
- Vidya Vasudevan
- Department of Biotechnology, Sri Ramachandra Medical College and Research Institute, (Deemed to Be University), Porur, Chennai, 600 116, India
| | - K Veena Gayathri
- Department of Biotechnology, Stella Maris College, Cathedral Road, Chennai, 600 086, India
| | - Mary Elizabeth Gnanambal Krishnan
- Department of Biotechnology, Sri Ramachandra Medical College and Research Institute, (Deemed to Be University), Porur, Chennai, 600 116, India.
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79
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Reddy PV, Karegoudar TB, Nayak AS. Enhanced utilization of fluorene by Paenibacillus sp. PRNK-6: Effect of rhamnolipid biosurfactant and synthetic surfactants. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 151:206-211. [PMID: 29407558 DOI: 10.1016/j.ecoenv.2018.01.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Revised: 01/08/2018] [Accepted: 01/10/2018] [Indexed: 06/07/2023]
Abstract
The present investigation was to study the effect of different non-ionic surfactants (Tween-80, Tween-60, Tween-40, Tween-20, Triton X-100) and a rhamnolipid biosurfactant on the degradation of fluorene by Paenibacillus sp. PRNK-6. An enhancement in the growth, as well as fluorene utilization by this strain were observed in the presence of biosurfactant and non-ionic surfactants except Tween-20 and Triton X-100. Triton X-100 and Tween-20 were toxic to this bacterium. The strain PRNK-6 utilized 75% of fluorene (280mg/L) in 24h in an unamended condition. On the other hand, the complete utilization of higher concentration fluorene (320mg/L) by this strain was noticed when the medium was amended with Tween-80 (1.5% v/v) within 24h of incubation. Whereas, 90.6%, 96.5% and 96.7% of fluorene (280mg/L) was utilized when amended with Tween-60 (3.5% v/v), Tween-40 (3% v/v) and biosurfactant (25mg/L) respectively. Biosurfactant promoted the fluorene degradation potential of PRNK-6 as 96.2% of 320mg/L fluorene was degraded within 24h. Further, the added tween series surfactants and a biosurfactant have increased the cell surface hydrophobicity of the PRNK-6. Thus correlating with the enhanced degradation of the fluorene.
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Affiliation(s)
- Pooja V Reddy
- Department of Biochemistry, Gulbarga University, Kalaburagi 585106, Karnataka, India
| | - T B Karegoudar
- Department of Biochemistry, Gulbarga University, Kalaburagi 585106, Karnataka, India
| | - Anand S Nayak
- Department of Biochemistry, Gulbarga University, Kalaburagi 585106, Karnataka, India.
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80
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Kumari S, Regar RK, Manickam N. Improved polycyclic aromatic hydrocarbon degradation in a crude oil by individual and a consortium of bacteria. BIORESOURCE TECHNOLOGY 2018; 254:174-179. [PMID: 29413920 DOI: 10.1016/j.biortech.2018.01.075] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/09/2018] [Accepted: 01/15/2018] [Indexed: 05/20/2023]
Abstract
In this study, we report the ability of Stenotrophomonas maltophilia, Ochrobactrum anthropi, Pseudomonas mendocina, Microbacterium esteraromaticum and Pseudomonas aeruginosa to degrade multiple polycyclic aromatic hydrocarbons (PAHs) present in crude oil. The PAHs in the crude oil sample obtained from Digboi oil refinery, India were estimated to be naphthalene (10.0 mg L-1), fluorene (1.9 mg L-1), phenanthrene (3.5 mg L-1) and benzo(b)fluoranthene (6.5 mg L-1). Exposure of individual bacteria to crude oil showed high rate of biodegradation of specific PAHs by M. esteraromaticum, 81.4%-naphthalene; P. aeruginosa, 67.1%-phenanthrene and 61.0%-benzo(b)fluoranthene; S. maltophilia, 47.9%-fluorene in 45 days. However, consortium of these bacteria showed enhanced biodegradation of 89.1%-naphthalene, 63.8%-fluorene, 81% of phenanthrene and 72.8% benzo(b)fluoranthene in the crude oil. The degradation was further improved up to 10% by consortium on addition of 40 μg mL-1 rhamnolipid JBR-425 biosurfactant. These results suggest that the developed bacterial consortium has significant potential in PAH remediation.
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Affiliation(s)
- Smita Kumari
- Environmental Biotechnology Laboratory, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Raj Kumar Regar
- Environmental Biotechnology Laboratory, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Department of Biochemistry, School of Dental Sciences, Babu Banarsi Das University (BBDU), Lucknow 226028, Uttar Pradesh, India
| | - Natesan Manickam
- Environmental Biotechnology Laboratory, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India.
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81
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Pino-Herrera DO, Pechaud Y, Huguenot D, Esposito G, van Hullebusch ED, Oturan MA. Removal mechanisms in aerobic slurry bioreactors for remediation of soils and sediments polluted with hydrophobic organic compounds: An overview. JOURNAL OF HAZARDOUS MATERIALS 2017; 339:427-449. [PMID: 28715703 DOI: 10.1016/j.jhazmat.2017.06.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 06/04/2017] [Accepted: 06/06/2017] [Indexed: 06/07/2023]
Abstract
Hydrophobic organic compound (HOC)-contaminated soils are a great environmental and public health concern nowadays. Further research is necessary to develop environmental friendly biotechnologies that allows public and private sectors to implement efficient and adaptable treatment approaches. Aerobic soil-slurry bioreactor technology has emerged as an effective and feasible technique with a high remediation potential, especially for silt and clay soil fractions, which often contain the highest pollutant concentration levels and are usually difficult to remove by implementing conventional methods. However, the mechanisms involved in the HOC removal in bioslurry reactor are still not completely understood. Gas-liquid and solid-liquid mass transfer, mass transport and biodegradation phenomena are the main known processes taking place in slurry bioreactors. This review compiles the most up-to-date information available about these phenomena and tries to link them, enlightening the possible interactions between parameters. It gathers the basic information needed to understand the complex bioremediation technology and raises awareness of some considerations that should be made.
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Affiliation(s)
- Douglas O Pino-Herrera
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, 77454, France
| | - Yoan Pechaud
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, 77454, France.
| | - David Huguenot
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, 77454, France
| | - Giovanni Esposito
- University of Cassino and Southern Lazio, Department of Civil Engineering, Via di Biasio, 43, Cassino, 03043 FR, Italy
| | - Eric D van Hullebusch
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, 77454, France; IHE Delft Institute for Water Education, Department of Environmental Engineering and Water Technology, Westvest 7, 2611 AX Delft, The Netherlands
| | - Mehmet A Oturan
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, 77454, France
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82
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Pei G, Zhu Y, Cai X, Shi W, Li H. Surfactant flushing remediation of o-dichlorobenzene and p-dichlorobenzene contaminated soil. CHEMOSPHERE 2017; 185:1112-1121. [PMID: 28772354 DOI: 10.1016/j.chemosphere.2017.07.098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 07/03/2017] [Accepted: 07/18/2017] [Indexed: 06/07/2023]
Abstract
Surfactant-enhanced remediation is used to treat dichlorobenzene (DCB) contaminated soil. In this study, soil column experiments were conducted to investigate the removal efficiencies of o-dichlorobenzene (o-DCB) and p-dichlorobenzene (p-DCB) from contaminated soil using micellar solutions of biosurfactants (saponin, alkyl polyglycoside) compare to a chemically synthetic surfactant (Tween 80). Leachate was collected and analyzed for o-DCB and p-DCB content. In addition, soil was analyzed to explore the effect of surfactants on soil enzyme activities. Results showed that the removal efficiency of o-DCB and p-DCB was highest for saponin followed by alkyl polyglycoside and Tween 80. The maximum o-DCB and p-DCB removal efficiencies of 76.34% and 80.43%, respectively, were achieved with 4 g L-1 saponin solution. However, an opposite result was observed in the cumulative mass of o-DCB and p-DCB in leachate. The cumulative extent of o-DCB and p-DCB removal by the biosurfactants saponin and alkyl polyglycoside was lower than that of the chemically synthetic surfactant Tween 80 in leachate. Soil was also analyzed to explore the effect of surfactants on soil enzyme activities. The results indicated that surfactants were potentially effective in facilitating soil enzyme activities. Thus, it was confirmed that the biosurfactants saponin and alkyl polyglycoside could be used for remediation of o-DCB and p-DCB contaminated soil.
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Affiliation(s)
- Guangpeng Pei
- School of Environment Science and Resources, Shanxi University, Taiyuan, Shanxi 030006, China; Institute of Resources and Environment Engineering, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Yuen Zhu
- School of Environment Science and Resources, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Xiatong Cai
- School of Environment Science and Resources, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Weiyu Shi
- Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing 400715, China.
| | - Hua Li
- School of Environment Science and Resources, Shanxi University, Taiyuan, Shanxi 030006, China.
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83
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Hasanizadeh P, Moghimi H, Hamedi J. Biosurfactant production by Mucor circinelloides on waste frying oil and possible uses in crude oil remediation. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 76:1706-1714. [PMID: 28991787 DOI: 10.2166/wst.2017.338] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Biosurfactants are biocompatible surface active agents which many microorganisms produce. This study investigated the production of biosurfactants by Mucor circinelloides. The effects of different factors on biosurfactant production, including carbon sources and concentrations, nitrogen sources, and iron (II) concentration, were studied and the optimum condition determined. Finally, the strain's ability to remove the crude oil and its relationship with biosurfactant production was evaluated. The results showed that M. circinelloides could reduce the surface tension of the culture medium to 26.6 mN/m and create a clear zone of 12.9 cm diameter in an oil-spreading test. The maximum surface tension reduction was recorded 3 days after incubation. The optimum condition for biosurfactant production was achieved in the presence of 8% waste frying oil as a carbon source, 2 g/L yeast extract as a nitrogen source, and 0.01 mM FeSO4. M. circinelloides could consume 8% waste frying oil in 5 days of incubation, and 87.6% crude oil in 12 days of incubation. A direct correlation was observed between oil degradation and surface tension reduction in the first 3 days of fungal growth. The results showed that the waste frying oil could be recommended as an inexpensive oily waste substance for biosurfactant production, and M. circinelloides could have the potential to treat waste frying oil. According to the results, the produced crude biosurfactant or fungal strain could be directly used for the mycoremediation of crude oil contamination in oil fields.
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Affiliation(s)
- Parvin Hasanizadeh
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran E-mail:
| | - Hamid Moghimi
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran E-mail:
| | - Javad Hamedi
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran E-mail: ; Microbial Technology and Products Research Centre, University of Tehran, Tehran, Iran
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84
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Lamichhane S, Bal Krishna KC, Sarukkalige R. Surfactant-enhanced remediation of polycyclic aromatic hydrocarbons: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 199:46-61. [PMID: 28527375 DOI: 10.1016/j.jenvman.2017.05.037] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 05/04/2017] [Accepted: 05/10/2017] [Indexed: 06/07/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are toxic, mutagenic and carcinogenic organic compounds that are widely present in the environment. The bioremediation of PAHs is an economical and environmentally friendly remediation technique, but it is limited because PAHs have low water solubility and fewer bioavailable properties. The solubility and bioavailability of PAHs can be increased by using surfactants to reduce surface tension and interfacial tension; this method is called surfactant-enhanced remediation (SER). The SER of PAHs is influenced by many factors such as the type and concentration of surfactants, PAH hydrophobicity, temperature, pH, salinity, dissolved organic matter and microbial community. Furthermore, as mixed micelles have a synergistic effect on PAH solubilisation, selecting the optimum ratio of mixed surfactants leads to effective PAH remediation. Although the use of surfactants inhibits microbial activities in some cases, this could be avoided by choosing an optimum combination of surfactants and a proper microbial community for the targeted PAH(s), resulting in up to 99.99% PAH removal. This article reviews the literature on SER of PAHs, including surfactant types, the synergistic effect of mixed micelles on PAH removal, the impact of surfactants on the PAH biodegradation process, factors affecting the SER process, and the mechanisms of surfactant-enhanced solubilisation of PAHs.
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Affiliation(s)
- Shanti Lamichhane
- Department of Civil Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
| | - K C Bal Krishna
- School of Computing Engineering and Mathematics, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.
| | - Ranjan Sarukkalige
- Department of Civil Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
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85
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Pi Y, Chen B, Bao M, Fan F, Cai Q, Ze L, Zhang B. Microbial degradation of four crude oil by biosurfactant producing strain Rhodococcus sp. BIORESOURCE TECHNOLOGY 2017; 232:263-269. [PMID: 28236759 DOI: 10.1016/j.biortech.2017.02.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/02/2017] [Accepted: 02/03/2017] [Indexed: 06/06/2023]
Abstract
Rhodococcus erythropolis M-25, one of the representative biosurfactant producers, performed effectively during the biodegradation of four crude oil. The microbial degradation efficiency is positively relevant to the API of the crude oil. The chemical dispersant Corexit 9500A did not enhance the biodegradation of the petroleum hydrocarbons during the experimental period. 70.7% of the N-4 oil was degraded after 30days, while in the Corexit 9500A plus sample the biodegradation removal was 42.8%. The Corexit-derived compounds were metabolized by M-25 at the same time of the petroleum hydrocarbons biodegrading. Neither biodegradation nor chemical dispersion process has almost no effect on the biomarker (m/z=231). The saturated methyl-branched fatty acids increased from 37.3%, to 49.4%, when M-25 was exposed with the N-4 crude oil. Similarly, the saturated methyl-branched fatty acids in the membrane of N3-2P increased from 20.25% to 44.1%, when exposed it with the N-4 crude oil.
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Affiliation(s)
- Yongrui Pi
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, Shandong 266100, China; Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B3X5, Canada
| | - Bing Chen
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B3X5, Canada
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, Shandong 266100, China.
| | - Fuqiang Fan
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B3X5, Canada
| | - Qinhong Cai
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B3X5, Canada
| | - Lv Ze
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B3X5, Canada
| | - Baiyu Zhang
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B3X5, Canada
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86
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Ranc B, Faure P, Croze V, Lorgeoux C, Simonnot MO. Comparison of the effectiveness of soil heating prior or during in situ chemical oxidation (ISCO) of aged PAH-contaminated soils. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:11265-11278. [PMID: 28299567 DOI: 10.1007/s11356-017-8731-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 03/01/2017] [Indexed: 06/06/2023]
Abstract
Thermal treatments prior or during chemical oxidation of aged polycyclic aromatic hydrocarbon (PAH)-contaminated soils have already shown their ability to increase oxidation effectiveness. However, they were never compared on the same soil. Furthermore, oxygenated polycyclic aromatic hydrocarbons (O-PACs), by-products of PAH oxidation which may be more toxic and mobile than the parent PAHs, were very little monitored. In this study, two aged PAH-contaminated soils were heated prior (60 or 90 °C under Ar for 1 week) or during oxidation (60 °C for 1 week) with permanganate and persulfate, and 11 O-PACs were monitored in addition to the 16 US Environmental Protection Agency (US EPA) PAHs. Oxidant doses were based on the stoichiometric oxidant demand of the extractable organic fraction of soils by using organic solvents, which is more representative of the actual contamination than only the 16 US EPA PAHs. Higher temperatures actually resulted in more pollutant degradation. Two treatments were about three times more effective than the others: soil heating to 60 °C during persulfate oxidation and soil preheating to 90 °C followed by permanganate oxidation. The results of this study showed that persulfate effectiveness was largely due to its thermal activation, whereas permanganate was more sensitive to PAH availability than persulfate. The technical feasibility of these two treatments will soon be field-tested in the unsaturated zone of one of the studied aged PAH-contaminated soils.
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Affiliation(s)
- Bérénice Ranc
- Laboratoire Interdisciplinaire des Environnements Continentaux, Faculté des Sciences et Technologies, UMR 7360 CNRS-Université de Lorraine, Site Aiguillettes, 54506, Vandœuvre-lès-Nancy cedex, France
- Laboratoire Réactions et Génie des Procédés, UMR 7274 CNRS-Université de Lorraine, 1 rue Grandville, 54001, Nancy cedex, France
- ICF Environnement, 14 à 30 rue Alexandre, 92635, Gennevilliers, France
| | - Pierre Faure
- Laboratoire Interdisciplinaire des Environnements Continentaux, Faculté des Sciences et Technologies, UMR 7360 CNRS-Université de Lorraine, Site Aiguillettes, 54506, Vandœuvre-lès-Nancy cedex, France
| | - Véronique Croze
- ICF Environnement, 14 à 30 rue Alexandre, 92635, Gennevilliers, France
- Element Terre, 2 rue Charles Fourier, 95240, Cormeilles en Parisis, France
| | - Catherine Lorgeoux
- GeoRessources Laboratoire, Faculté des Sciences et Technologies, Université de Lorraine, CNRS, CREGU, 54506, Vandœuvre-lès-Nancy cedex, France
| | - Marie-Odile Simonnot
- Laboratoire Réactions et Génie des Procédés, UMR 7274 CNRS-Université de Lorraine, 1 rue Grandville, 54001, Nancy cedex, France.
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Kuppusamy S, Thavamani P, Venkateswarlu K, Lee YB, Naidu R, Megharaj M. Remediation approaches for polycyclic aromatic hydrocarbons (PAHs) contaminated soils: Technological constraints, emerging trends and future directions. CHEMOSPHERE 2017; 168:944-968. [PMID: 27823779 DOI: 10.1016/j.chemosphere.2016.10.115] [Citation(s) in RCA: 320] [Impact Index Per Article: 45.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 10/26/2016] [Accepted: 10/27/2016] [Indexed: 05/22/2023]
Abstract
For more than a decade, the primary focus of environmental experts has been to adopt risk-based management approaches to cleanup PAH polluted sites that pose potentially destructive ecological consequences. This focus had led to the development of several physical, chemical, thermal and biological technologies that are widely implementable. Established remedial options available for treating PAH contaminated soils are incineration, thermal conduction, solvent extraction/soil washing, chemical oxidation, bioaugmentation, biostimulation, phytoremediation, composting/biopiles and bioreactors. Integrating physico-chemical and biological technologies is also widely practiced for better cleanup of PAH contaminated soils. Electrokinetic remediation, vermiremediation and biocatalyst assisted remediation are still at the development stage. Though several treatment methods to remediate PAH polluted soils currently exist, a comprehensive overview of all the available remediation technologies to date is necessary so that the right technology for field-level success is chosen. The objective of this review is to provide a critical overview in this respect, focusing only on the treatment options available for field soils and ignoring the spiked ones. The authors also propose the development of novel multifunctional green and sustainable systems like mixed cell culture system, biosurfactant flushing, transgenic approaches and nanoremediation in order to overcome the existing soil- contaminant- and microbial-associated technological limitations in tackling high molecular weight PAHs. The ultimate objective is to ensure the successful remediation of long-term PAH contaminated soils.
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Affiliation(s)
- Saranya Kuppusamy
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828, Republic of Korea; Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia.
| | - Palanisami Thavamani
- Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Kadiyala Venkateswarlu
- Formerly Department of Microbiology, Sri Krishnadevaraya University, Anantapur, 515055, India
| | - Yong Bok Lee
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Ravi Naidu
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Mallavarapu Megharaj
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
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88
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Hanano A, Shaban M, Almousally I. Biochemical, Molecular, and Transcriptional Highlights of the Biosynthesis of an Effective Biosurfactant Produced by Bacillus safensis PHA3, a Petroleum-Dwelling Bacteria. Front Microbiol 2017; 8:77. [PMID: 28179901 PMCID: PMC5263155 DOI: 10.3389/fmicb.2017.00077] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 01/11/2017] [Indexed: 11/13/2022] Open
Abstract
Petroleum crude oil (PCO)-dwelling microorganisms have exceptional biological capabilities to tolerate the toxicity of petroleum contaminants and are therefore promising emulsifier and/or degraders of PCO. This study describes a set of PCO-inhabiting bacterial species, one of which, identified as Bacillus safensis PHA3, produces an efficient biosurfactant which was characterized as a glycolipid. Fourier transform infrared spectrometer, nuclear magnetic resonance, Thin layer chromatography, HPLC, and GC-MS analysis of the purified biosurfactant revealed that the extracted molecule under investigation is likely a mannolipid molecule with a hydrophilic part as mannose and a hydrophobic part as hexadecanoic acid (C16:0). The data reveal that: (i) PHA3 is a potential producer of biosurfactant (9.8 ± 0.5 mg mL-1); (ii) pre-adding 0.15% of the purified glycolipid enhanced the degradation of PCO by approximately 2.5-fold; (iii) the highest emulsifying activity of biosurfactant was found against the PCO and the lowest was against the naphthalene; (iv) the optimal PCO-emulsifying activity was found at 30-60°C, pH 8 and a high salinity. An orthologous gene encodes a putative β-diglucosyldiacylglycerol synthase (β-DGS) was identified in PHA3 and its transcripts were significantly up-regulated by exogenous PAHs, i.e., pyrene and benzo(e)pyrene but much less by mid-chain n-alkanes (ALKs) and fatty acids. Subsequently, the accumulation of β-DGS transcripts coincided with an optimal growth of bacteria and a maximal accumulation of the biosurfactant. Of particular interest, we found that PHA3 actively catalyzed the degradation of PAHs notably the pyrene and benzo(e)pyrene but was much less effective in the mono-terminal oxidation of ALKs. Such characteristics make Bacillus safensis PHA3 a promising model for enhanced microbial oil recovery and environmental remediation.
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Affiliation(s)
- Abdulsamie Hanano
- Department of Molecular Biology and Biotechnology, Atomic Energy Commission of Syria Damascus, Syria
| | - Mouhnad Shaban
- Department of Molecular Biology and Biotechnology, Atomic Energy Commission of Syria Damascus, Syria
| | - Ibrahem Almousally
- Department of Molecular Biology and Biotechnology, Atomic Energy Commission of Syria Damascus, Syria
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89
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Bezza FA, Chirwa EMN. Pyrene biodegradation enhancement potential of lipopeptide biosurfactant produced by Paenibacillus dendritiformis CN5 strain. JOURNAL OF HAZARDOUS MATERIALS 2017; 321:218-227. [PMID: 27627697 DOI: 10.1016/j.jhazmat.2016.08.035] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 07/26/2016] [Accepted: 08/11/2016] [Indexed: 06/06/2023]
Abstract
Effect of biosurfactant on biodegradation of pyrene was studied using a microbial consortium predominantly composed of Pseudomonas viridiflava (49.5%) and Pseudomonas nitroreducens (32.5%) in a batch experiment containing lipopeptidic biosurfactant, produced by Paenibacillus dendritiformis CN5 strain, and mineral salt medium. The results showed that the lipopeptide at 600 and 300mgL-1 enhanced pyrene degradation to 83.5% and 67% respectively in 24days compared to 16% degradation in its absence. However degradation of pyrene was reduced to 57% as the lipopeptide supplementation was raised to 900mgL-1. This demonstrates that the biodegradation of pyrene was found to increase with an increase in the lipopeptide concentration up to a threshold level. The experimental data were fitted to the logistic kinetic model which provided best fit with a coefficient of determination (R2) values≥0.97. Maximum specific growth rate, μmax of 0.97 and 0.69d-1 were achieved in the 600 and 300mgL-1 lipopeptide amendments in comparison to 0.54d-1 in the unamended one. The carrying capacity, Xmax increased 4.4-fold in 600mgL-1 lipopeptide supplemented samples in comparison to its absence. Generally the lipopeptide showed potential application in improving bioremediation of polycyclic aromatic hydrocarbons contaminated environmental media.
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Affiliation(s)
- Fisseha Andualem Bezza
- Water Utilisation and Environmental Engineering Division, Department of Chemical Engineering, University of Pretoria, Pretoria 0002, South Africa
| | - Evans M Nkhalambayausi Chirwa
- Water Utilisation and Environmental Engineering Division, Department of Chemical Engineering, University of Pretoria, Pretoria 0002, South Africa.
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90
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Yan Z, Zhang Y, Wu H, Yang M, Zhang H, Hao Z, Jiang H. Isolation and characterization of a bacterial strain Hydrogenophaga sp. PYR1 for anaerobic pyrene and benzo[a]pyrene biodegradation. RSC Adv 2017. [DOI: 10.1039/c7ra09274a] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A pyrene-degrading strainHydrogenophagasp. PYR1 was isolated from PAH-contaminated river sediments and found to be able to degrade high molecular weight-polycyclic aromatic hydrocarbons under both aerobic and anaerobic conditions.
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Affiliation(s)
- Zaisheng Yan
- State Key Laboratory of Lake Science and Environment
- Nanjing Institute of Geography and Limnology
- Chinese Academy of Sciences
- Nanjing
- China
| | - Yu Zhang
- State Key Laboratory of Lake Science and Environment
- Nanjing Institute of Geography and Limnology
- Chinese Academy of Sciences
- Nanjing
- China
| | - Huifang Wu
- College of Environment
- Nanjing University of Technology
- Nanjing
- China
| | - Mingzhong Yang
- State Key Laboratory of Lake Science and Environment
- Nanjing Institute of Geography and Limnology
- Chinese Academy of Sciences
- Nanjing
- China
| | - Haichen Zhang
- State Key Laboratory of Lake Science and Environment
- Nanjing Institute of Geography and Limnology
- Chinese Academy of Sciences
- Nanjing
- China
| | - Zheng Hao
- State Key Laboratory of Lake Science and Environment
- Nanjing Institute of Geography and Limnology
- Chinese Academy of Sciences
- Nanjing
- China
| | - Helong Jiang
- State Key Laboratory of Lake Science and Environment
- Nanjing Institute of Geography and Limnology
- Chinese Academy of Sciences
- Nanjing
- China
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91
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Ranc B, Faure P, Croze V, Simonnot MO. Selection of oxidant doses for in situ chemical oxidation of soils contaminated by polycyclic aromatic hydrocarbons (PAHs): A review. JOURNAL OF HAZARDOUS MATERIALS 2016; 312:280-297. [PMID: 27043880 DOI: 10.1016/j.jhazmat.2016.03.068] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 03/23/2016] [Accepted: 03/25/2016] [Indexed: 06/05/2023]
Abstract
In situ chemical oxidation (ISCO) is a promising alternative to thermal desorption for the remediation of soils contaminated with organic compounds such as polycyclic aromatic hydrocarbons (PAHs). For field application, one major issue is the selection of the optimal doses of the oxidizing solution, i.e. the oxidant and appropriate catalysts and/or additives. Despite an extensive scientific literature on ISCO, this choice is very difficult because many parameters differ from one study to another. The present review identifies the critical factors that must be taken into account to enable comparison of these various contributions. For example, spiked soils and aged, polluted soils cannot be compared; PAHs freshly spiked into a soil are fully available for degradation unlike a complex mixture of pollutants trapped in a soil for many years. Another notable example is the high diversity of oxidation conditions employed during batch experiments, although these affect the representativeness of the system. Finally, in this review a methodology is also proposed based on a combination of the stoichiometric oxidant demand of the organic pollutants and the design of experiments (DOE) in order to allow a better comparison of the various studies so far reported.
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Affiliation(s)
- B Ranc
- Université de Lorraine, Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360, Site Aiguillette, 54506 Vandœuvre-lès-Nancy cedex, France; CNRS, Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360, Site Aiguillettes, 54506 Vandœuvre-lès-Nancy cedex, France; ICF Environnement, 14 à 30 rue Alexandre, 92635 Gennevilliers, France; Université de Lorraine, Laboratoire Réactions et Génie des Procédés, UMR 7274, 1 rue Grandville, 54001 Nancy cedex, France; CNRS, Laboratoire Réactions et Génie des Procédés, UMR 7274, 1 rue Grandville, 54001 Nancy cedex, France
| | - P Faure
- Université de Lorraine, Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360, Site Aiguillette, 54506 Vandœuvre-lès-Nancy cedex, France; CNRS, Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360, Site Aiguillettes, 54506 Vandœuvre-lès-Nancy cedex, France
| | - V Croze
- ICF Environnement, 14 à 30 rue Alexandre, 92635 Gennevilliers, France
| | - M O Simonnot
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés, UMR 7274, 1 rue Grandville, 54001 Nancy cedex, France; CNRS, Laboratoire Réactions et Génie des Procédés, UMR 7274, 1 rue Grandville, 54001 Nancy cedex, France.
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92
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Ma XK, Guo DD, Peterson EC, Dun Y, Li DY. Structural characterization and anti-aging activity of a novel extracellular polysaccharide from fungus Phellinus sp. in a mammalian system. Food Funct 2016; 7:3468-79. [PMID: 27405813 DOI: 10.1039/c6fo00422a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Little is known about the chemical structure of purified extracellular polysaccharides from Phellinus sp., a fungal species with known medicinal properties. A combination of IR spectroscopy, methylation analysis and NMR were performed for the structural analysis of a purified extracellular polysaccharide derived from Phellinus sp. culture, denoted as SHP-1, along with an evaluation of the anti-aging effect in vivo of the polysaccharide supplementation. The structure of SHP-1 was established, with a backbone composed of →2,4)-α-d-glucopyranose-(1→ and →2)-β-d-mannopyranose-(1→ and two terminal glucopyranose branches. Biochemical analysis from mammalian animal experiments demonstrated that SHP-1 possesses the ability to enhance antioxidant enzyme activities, such as catalase (CAT) and superoxide dismutase (SOD) activities, Trolox equivalent antioxidant capacity (TEAC) in serum of d-galactose-aged mice, while reducing lipofuscin levels, another indicator of cell aging, indicating a potential association with anti-aging activities in a dose dependent manner. This compound had a favourable influence on immune organ indices, and a marked amelioration ability of histopathological hepatic lesions such as necrosis, karyolysis and reduced inflammation and apoptosis in mouse hepatocytes. These results suggest that SHP-1 has strong antioxidant activities and a significant protective effect against oxidative stress or hepatotoxicity induced by d-galactose in mice and it could be developed as a food ingredient or a pharmaceutical to prevent many age-associated diseases such as major depressive disorder and hepatotoxicity. To our knowledge, this is the first report on the antioxidant effects of a novel purified exopolysaccharide derived from Phellinus sp.
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Affiliation(s)
- Xiao-Kui Ma
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Science, Shaanxi Normal University, Xi'an 710055, Shaanxi, People's Republic of China.
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93
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Di Gregorio S, Siracusa G, Becarelli S, Mariotti L, Gentini A, Lorenzi R. Isolation and characterization of a hydrocarbonoclastic bacterial enrichment from total petroleum hydrocarbon contaminated sediments: potential candidates for bioaugmentation in bio-based processes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:10587-10594. [PMID: 26755178 DOI: 10.1007/s11356-015-5944-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 12/07/2015] [Indexed: 06/05/2023]
Abstract
Seven hydrocarbonoclastic new bacterial isolates were isolated from dredged sediments of a river estuary in Italy. The sediments were contaminated by shipyard activities since decades, mainly ascribable to the exploitation of diesel oil as the fuel for recreational and commercial navigation of watercrafts. The bacterial isolates were able to utilize diesel oil as sole carbon source. Their metabolic capacities were evaluated by GC-MS analysis, with reference to the depletion of both the normal and branched alkanes, the nC18 fatty acid methyl ester and the unresolved complex mixture of organic compounds. They were taxonomically identified as different species of Stenotrophomonas and Pseudomonas spp. by the combination of amplified ribosomal DNA restriction analysis (ARDRA) and repetitive sequence-based PCR (REP-PCR) analysis. The metabolic activities of interest were analyzed both in relation to the single bacterial strains and to the combination of the latter as a multibacterial species system. After 6 days of incubation in mineral medium with diesel oil as sole carbon source, the Stenotrophomonas sp. M1 strain depleted 43-46 % of Cn-alkane from C28 up to C30, 70 % of the nC18 fatty acid methyl ester and the 46 % of the unresolved complex mixture of organic compounds. On the other hand, the Pseudomonas sp. NM1 strain depleted the 76 % of the nC18 fatty acid methyl ester, the 50 % of the unresolved complex mixture of organic compounds. The bacterial multispecies system was able to completely deplete Cn-alkane from C28 up to C30 and to deplete the 95 % of the unresolved complex mixture of organic compounds. The isolates, either as single strains and as a bacterial multispecies system, were proposed as candidates for bioaugmentation in bio-based processes for the decontamination of dredged sediments.
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Affiliation(s)
| | | | | | | | | | - Roberto Lorenzi
- Department of Biology, University of Pisa, 56126, Pisa, Italy
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94
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Nwankwegu AS, Onwosi CO, Orji MU, Anaukwu CG, Okafor UC, Azi F, Martins PE. Reclamation of DPK hydrocarbon polluted agricultural soil using a selected bulking agent. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2016; 172:136-142. [PMID: 26934642 DOI: 10.1016/j.jenvman.2016.02.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 02/17/2016] [Accepted: 02/18/2016] [Indexed: 06/05/2023]
Abstract
In the present study, laboratory scale bioremediation of dual purpose kerosene (DPK) hydrocarbon polluted soil using bulking agent (saw dust) was carried out. The effect of different parameters such as total petroleum hydrocarbon (TPH), dehydrogenase activity (DHase) and pH on bioremediation performance were evaluated. Studied parameters such as microbial dynamics, percentage degradation (95.20%), DHase (8.20 ± 0.43) were found to be higher in saw dust amended system and significantly differed with control at p < 0.05. Experimental data adequately fitted the first order kinetic thus, generated r(2) values (0.966), first order degradation constant (0.659 d(-1)), and degradation half-life t1/2 = ln2/k (1.05 d). Micrococcus luteus, Bacillus sp., Rhizopus arrhizus and Aspergillus sp. were isolated from the study. The use of saw dust as bulking agent greatly increased biodegradation rate and resulted in effective DPK hydrocarbon clean up. Therefore, saw dust could serve as an effective biostimulant towards improved bioremediation of hydrocarbon polluted environment.
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Affiliation(s)
- Amechi S Nwankwegu
- Department of Applied Microbiology and Brewing, Faculty of Biosciences, NnamdiAzikiwe University PMB, 5025, Awka, Anambra State, Nigeria.
| | - Chukwudi O Onwosi
- Department of Microbiology, Faculty of Biological Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Michael U Orji
- Department of Applied Microbiology and Brewing, Faculty of Biosciences, NnamdiAzikiwe University PMB, 5025, Awka, Anambra State, Nigeria
| | - Chika G Anaukwu
- Department of Applied Microbiology and Brewing, Faculty of Biosciences, NnamdiAzikiwe University PMB, 5025, Awka, Anambra State, Nigeria
| | - Uchenna C Okafor
- Department of Applied Microbiology and Brewing, Faculty of Biosciences, NnamdiAzikiwe University PMB, 5025, Awka, Anambra State, Nigeria
| | - Fidelis Azi
- Department of Food Science, Ebonyi State University EBSU, Abakaliki, Ebonyi State, Nigeria
| | - Paul E Martins
- Department of Microbiology, Faculty of Biological Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria
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95
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Maikudi Usman M, Dadrasnia A, Tzin Lim K, Fahim Mahmud A, Ismail S. Application of biosurfactants in environmental biotechnology; remediation of oil and heavy metal. AIMS BIOENGINEERING 2016. [DOI: 10.3934/bioeng.2016.3.289] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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