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Meng L, Li W, Zhao L, Yan H, Zhao H. Influences of extracellular polymeric substances (EPS) recovered from waste sludge on the ability of Jiaozhou Bay to self-remediate of diesel-polluted seawater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 353:120196. [PMID: 38290259 DOI: 10.1016/j.jenvman.2024.120196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 12/10/2023] [Accepted: 01/20/2024] [Indexed: 02/01/2024]
Abstract
The introduction of EPS recovered from waste sludge may have an impact on the process of microbial remediation of oil-contaminated seawater. This study investigated the effect of EPS on the self-remediation capacity of diesel-polluted seawater in Jiaozhou Bay. Hydrocarbon attenuation and microbial activity were monitored in seawater collected from five islands after diesel and N, P addition, with and without EPS, incubated under aerobic conditions. Compared to seawater without EPS, degradation of TPH (total petroleum hydrocarbon) doubled and improved degradation of non-volatile (C16-C24) hydrocarbons to some extent in EPS-added seawater. The introduction of EPS led to changes in microbiota richness and diversity, significantly stimulating the growth of Proteobacteria and Firmicutes phyla or Bacillus and Pseudomonas genera. RT-qPCR analysis indicated EPS caused higher increases in cytochrome P450 gene copies than alkB. Prediction of alkane decay genes from 16S rRNA sequencing data revealed that EPS addition obviously promoted genes related to ethanol dehydrogenation function in the microbial community. Additionally, EPS enhanced the enzymatic activities of alkane hydroxylase, ethanol dehydrogenase, phosphatase and lipase, but increased protease and catalase inconspicuously. The above outlook that environmental sustainability of EPS from waste sludge for diesel-contaminated seawater remediation may provide new perspectives for oil spill bioremediation.
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Affiliation(s)
- Long Meng
- Department of Bioengineering, College of Chemical and Bioengineering, Shandong University of Science and Technology, 579 Qianwangang Road, Huangdao District, Qingdao, Shandong Province, 266590, PR China.
| | - Wen Li
- Biofilm Research institute, Qingdao Spring water Treatment Co. Ltd, Qingdao, 266555, PR China
| | - Lanmei Zhao
- Department of Bioengineering, College of Chemical and Bioengineering, Shandong University of Science and Technology, 579 Qianwangang Road, Huangdao District, Qingdao, Shandong Province, 266590, PR China
| | - Huaxiao Yan
- Department of Bioengineering, College of Chemical and Bioengineering, Shandong University of Science and Technology, 579 Qianwangang Road, Huangdao District, Qingdao, Shandong Province, 266590, PR China
| | - Hui Zhao
- Department of Bioengineering, College of Chemical and Bioengineering, Shandong University of Science and Technology, 579 Qianwangang Road, Huangdao District, Qingdao, Shandong Province, 266590, PR China
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Gyasi SF, Sarfo MK, Kabo-Bah AT, Adu B, Appiah AS, Serfor-Armah Y. In vitro assessment of crude oil degradation by Acinetobacter junii and Alcanivorax xenomutans isolated from the coast of Ghana. Heliyon 2024; 10:e24994. [PMID: 38318038 PMCID: PMC10838785 DOI: 10.1016/j.heliyon.2024.e24994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 01/09/2024] [Accepted: 01/18/2024] [Indexed: 02/07/2024] Open
Abstract
This study was aimed at using in vitro microcosm experiments to assess crude oil degradation efficiency of Acinetobacter junii and Alcanivorax xenomutans isolated along Ghana's coast. Uncontaminated seawater from selected locations along the coast was used to isolate bacterial species by employing enrichment culture procedures with crude oil as the only carbon source. The isolates were identified by means of the extended direct colony transfer method of the Matrix Assisted Laser Desorption Ionization Time of Flight Mass Spectroscopy (MALDI-TOF MS), as Acinetobacter junii, and Alcanivorax xenomutans. Remediation tests showed that Acinetobacter junii yielded degradation efficiencies of 27.59 %, 41.38 % and 57.47 %. Whereas efficiencies of 21.14 %, 32.18 % and 43.68 % were recorded by Alcanivorax xenomutans representing 15, 30 and 45 days respectively. Consortia of Acinetobacter junii, and Alcanivorax xenomutans also yielded 32.18 %, 48.28 % and 62.07 % for the selected days respectively. Phylogenetic characterization using ClustalW and BLAST of sequences generated from the Oxford Nanopore Sequencing technique, showed that the Ghanaian isolates clustered with Alcanivorax xenomutans and Acinetobacter junii species respectively. An analysis of the sequenced data for the 1394-bp portion of the 16S rRNA gene of the isolates revealed >99 % sequence identity with the isolates present on the GenBank database. The isolates of closest identity were Alcanivorax xenomutans and Acinetobacter junii with accession numbers, NR_133958.1 and KJ147060.1 respectively. Acinetobacter junii and Alcanivorax xenomutans isolated from Ghana's coast under pristine seawater conditions have therefore demonstrated their capacity to be used for the remediation of crude oil spills.
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Affiliation(s)
- Samuel Fosu Gyasi
- Department of Biological Science, University of Energy and Natural Resources. Sunyani, Ghana
- Centre for Research in Applied Biology, University of Energy and Natural Resources. Sunyani, Ghana
| | - Mark Kwasi Sarfo
- National Nuclear Research Institute, Ghana Atomic Energy Commission, Ghana
| | | | - Bright Adu
- Department of Immunology, Noguchi Memorial Institute for Medical Research, University of Ghana, Ghana
| | - Andrew Sarkodie Appiah
- Biotechnology Center, Biotechnology and Nuclear Agricultural Research Institute, Ghana Atomic Energy Commission, Ghana
| | - Yaw Serfor-Armah
- School of Nuclear and Allied Sciences, University of Ghana, Legon, Accra, Ghana
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Lobato MR, Cazarolli JC, Rios RDF, D' Alessandro EB, Lutterbach MTS, Filho NRA, Pasa VMD, Aranda D, Scorza PR, Bento FM. Behavior of deteriogenic fungi in aviation fuels (fossil and biofuel) during simulated storage. Braz J Microbiol 2023; 54:1603-1621. [PMID: 37584891 PMCID: PMC10484884 DOI: 10.1007/s42770-023-01055-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 06/28/2023] [Indexed: 08/17/2023] Open
Abstract
Biofuels are expected to play a major role in reducing carbon emissions in the aviation sector globally. Farnesane ("2,6,10-trimethyldodecane") is a biofuel derived from the synthesized iso-paraffin route wich can be blended with jet fuel; however, the microbial behavior in farnesane/jet fuel blends remains unknown. The chemical and biological stability of blends should be investigated to ensure they meet the quality requirements for aviation fuels. This work aimed at evaluating the behavior of two fungi Hormoconis resinae (F089) and Exophiala phaeomuriformis (UFRGS Q4.2) in jet fuel, farnesane, and in 10% farnesane blend during simulated storage. Microcosms (150-mL flasks) were assembled with and without fungi containing Bushnell & Haas mineral medium for 28 days at a temperature of 20±2°C. The fungal growth (biomass), pH, surface tension, and changes in the fuel's hydrocarbon chains were evaluated. This study revealed thatthe treatment containing H. resinae showed a biomass of 19 mg, 12 mg, and 2 mg for jet fuel, blend, and farnesane respectively. The pH was reduced from 7.2 to 4.3 observed in jet fuel treatment The degradation results showed that compounds with carbon chains between C9 and C11, in jet fuel, and blend treatments were preferably degraded. The highest biomass (70.9 mg) produced by E. phaeomuriformis was in 10% farnesane blend, after 21 days. However, no significant decrease was observed on pH and surface tension measurements across the treatments as well as on the hydrocarbons when compared to the controls. This study revealed that farnesane neither inhibited nor promoted greater growth on both microorganisms.
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Affiliation(s)
- Mariane Rodrigues Lobato
- Fuels and Biofuels Biodeterioration Laboratory (LAB-BIO), Department of Microbiology, Immunology and Parasitology, Federal University of Rio Grande do Sul, Ramiro Barcelos Street # 2600, Building, Porto Alegre, Rio Grande do Sul, 21116, Brazil
| | - Juciana Clarice Cazarolli
- Fuels and Biofuels Biodeterioration Laboratory (LAB-BIO), Department of Microbiology, Immunology and Parasitology, Federal University of Rio Grande do Sul, Ramiro Barcelos Street # 2600, Building, Porto Alegre, Rio Grande do Sul, 21116, Brazil
| | - Regiane Débora Fernandes Rios
- Fuel Testing Laboratory (LEC), Department of Chemistry, Federal University of Minas Gerais, Presidente Antônio Carlos Avenue #6627, Belo Horizonte, Minas Gerais, Brazil
| | - Emmanuel Bezerra D' Alessandro
- Laboratory of Extraction and Separation Methods (LAMES), Institute of Chemistry, Federal University of Goias, Esperança Avenue, IQ-1 Block, Goiânia, Goiás, Goiânia, Brasil
| | - Marcia T S Lutterbach
- Laboratory of Biocorrosion and Biodegradation (LABIO), National Institute of Technology (INT), Venezuela Avenue # 82, Rio de Janeiro, Brazil
| | - Nelson Roberto Antoniosi Filho
- Laboratory of Extraction and Separation Methods (LAMES), Institute of Chemistry, Federal University of Goias, Esperança Avenue, IQ-1 Block, Goiânia, Goiás, Goiânia, Brasil
| | - Vânya Márcia Duarte Pasa
- Fuel Testing Laboratory (LEC), Department of Chemistry, Federal University of Minas Gerais, Presidente Antônio Carlos Avenue #6627, Belo Horizonte, Minas Gerais, Brazil
| | - Donato Aranda
- GREENTEC- School of Chemistry, Department of Chemical Engineering, Horácio Macedo, Federal University of Rio de Janeiro, Avenue # 2030. Block E, office 211, Rio de Janeiro, Brazil
| | - Pedro Rodrigo Scorza
- Brazilian Union of Biodiesel and Biojetfuel UBRABIO-SHIS QL12, Conjunto 07, Casa 05, Brasilia, Brasilia, Brazil
| | - Fátima Menezes Bento
- Fuels and Biofuels Biodeterioration Laboratory (LAB-BIO), Department of Microbiology, Immunology and Parasitology, Federal University of Rio Grande do Sul, Ramiro Barcelos Street # 2600, Building, Porto Alegre, Rio Grande do Sul, 21116, Brazil.
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Bochynek M, Lewińska A, Witwicki M, Dębczak A, Łukaszewicz M. Formation and structural features of micelles formed by surfactin homologues. Front Bioeng Biotechnol 2023; 11:1211319. [PMID: 37485321 PMCID: PMC10360134 DOI: 10.3389/fbioe.2023.1211319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 06/22/2023] [Indexed: 07/25/2023] Open
Abstract
Surfactin, a group of cyclic lipopeptides produced by Bacillus subtilis, possesses surfactant properties and is a promising natural and biologically active compound. In this study, we present a comprehensive characterization of surfactin, including its production, chromatographic separation into pure homologues (C12, C13, C14, C15), and investigation of their physicochemical properties. We determined adsorption isotherms and interpreted them using the Gibbs adsorption equation, revealing that the C15 homologue exhibited the strongest surface tension reduction (27.5 mN/m), while surface activity decreased with decreasing carbon chain length (32.2 mN/m for C12). Critical micelle concentration (CMC) were also determined, showing a decrease in CMC values from 0.35 mM for C12 to 0.08 mM for C15. We employed dynamic light scattering (DLS), transmission electron microscopy (TEM), and density functional theory (DFT) calculations to estimate the size of micellar aggregates, which increased with longer carbon chains, ranging from 4.7 nm for C12 to 5.7 nm for C15. Furthermore, aggregation numbers were determined, revealing the number of molecules in a micelle. Contact angles and emulsification indexes (E24) were measured to assess the functional properties of the homologues, showing that wettability increased with chain length up to C14, which is intriguing as C14 is the most abundant homologue. Our findings highlight the relationship between the structure and properties of surfactin, providing valuable insights for understanding its biological significance and potential applications in various industries. Moreover, the methodology developed in this study can be readily applied to other cyclic lipopeptides, facilitating a better understanding of their structure-properties relationship.
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Affiliation(s)
- Michał Bochynek
- Department of Biotransformation, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
- InventionBio S.A., Bydgoszcz, Poland
| | - Agnieszka Lewińska
- Faculty of Chemistry, University of Wroclaw, Wroclaw, Poland
- OnlyBio S.A., Bydgoszcz, Poland
| | - Maciej Witwicki
- Faculty of Chemistry, University of Wroclaw, Wroclaw, Poland
| | - Agnieszka Dębczak
- Łukasiewicz Research Network—New Chemical Syntheses Institute, Puławy, Poland
| | - Marcin Łukaszewicz
- Department of Biotransformation, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
- InventionBio S.A., Bydgoszcz, Poland
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Ibrahim IM, Fedonenko YP, Sigida EN, Kokoulin MS, Grinev VS, Mokrushin IG, Burygin GL, Zakharevich AM, Shirokov AA, Konnova SA. Structural characterization and physicochemical properties of the exopolysaccharide produced by the moderately halophilic bacterium Chromohalobacter salexigens, strain 3EQS1. Extremophiles 2023; 27:4. [PMID: 36715826 DOI: 10.1007/s00792-023-01289-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 01/15/2023] [Indexed: 01/31/2023]
Abstract
A strain, 3EQS1, was isolated from a salt sample taken from Lake Qarun (Fayoum Province, Egypt). On the basis of physiological, biochemical, and phylogenetic analyses, the strain was classified as Chromohalobacter salexigens. By 72 h of growth at 25 °C, strain 3EQS1 produced large amounts (15.1 g L-1) of exopolysaccharide (EPS) in a liquid mineral medium (initial pH 8.0) containing 10% sucrose and 10% NaCl. The EPS was precipitated from the cell-free culture medium with chilled ethanol and was purified by gel-permeation and anion-exchange chromatography. The molecular mass of the EPS was 0.9 × 106 Da. Chemical analyses, Fourier transform infrared spectroscopy, and nuclear magnetic resonance spectroscopy showed that the EPS was a linear β-D-(2 → 6)-linked fructan (levan). In aqueous solution, the EPS tended to form supramolecular aggregates with a critical aggregation concentration of 240 µg mL-1. The EPS had high emulsifying activity (E24, %) against kerosene (31.2 ± 0.4%), sunflower oil (76.9 ± 1.3%), and crude oil (98.9 ± 0.8%), and it also had surfactant properties. A 0.1% (w/v) aqueous EPS solution reduced the surface tension of water by 11.9%. The levan of C. salexigens 3EQS1 may be useful in various biotechnological processes.
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Affiliation(s)
- Ibrahim M Ibrahim
- Department of Agricultural Microbiology, Faculty of Agriculture, Fayoum University, Fayoum, 63514, Egypt.,Chernyshevsky Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov, 410012, Russia
| | - Yuliya P Fedonenko
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov, 410049, Russia.
| | - Elena N Sigida
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov, 410049, Russia
| | - Maxim S Kokoulin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159 Prospekt 100 let Vladivostoku, Vladivostok, 690022, Russia
| | - Vyacheslav S Grinev
- Chernyshevsky Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov, 410012, Russia.,Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov, 410049, Russia
| | | | - Gennady L Burygin
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov, 410049, Russia
| | - Andrey M Zakharevich
- Chernyshevsky Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov, 410012, Russia
| | - Alexander A Shirokov
- Chernyshevsky Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov, 410012, Russia.,Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov, 410049, Russia
| | - Svetlana A Konnova
- Chernyshevsky Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov, 410012, Russia.,Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov, 410049, Russia
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Li Z, Rosenzweig R, Chen F, Qin J, Li T, Han J, Istvan P, Diaz-Reck D, Gelman F, Arye G, Ronen Z. Bioremediation of Petroleum-Contaminated Soils with Biosurfactant-Producing Degraders Isolated from the Native Desert Soils. Microorganisms 2022; 10:microorganisms10112267. [PMID: 36422337 PMCID: PMC9694877 DOI: 10.3390/microorganisms10112267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/02/2022] [Accepted: 11/10/2022] [Indexed: 11/17/2022] Open
Abstract
A crude oil spill in 2014 resulted in extensive soil contamination of the hyper arid Evrona Nature Reserve in Israel's Negev Desert. The contaminated soils became highly hydrophobic, threatening the existence of plants in the habitat. We hypothesized that bioaugmenting the soil with indigenous biosurfactant-producing, hydrocarbon-degrading bacteria (HDB) would accelerate the reduction in the soil's hydrophobicity. We aimed to isolate and characterize biosurfactant-producing HDBs from the desert-contaminated soil and test if they can be used for augmenting the soil. Twelve hydrocarbon-degrading strains were isolated, identified as Pseudomonas, and classified as biosurfactants "producing" and "nonproducing". Inoculating 109 CFU/g of "producing" strains into the polluted soil resulted in a 99.2% reduction in soil hydrophobicity within seven days. At the same time, nonproducing strains reduced hydrophobicity by only 17%, while no change was observed in the untreated control. The microbial community in the inoculated soil was dominated by the introduced strains over 28 days, pointing to their persistence. Rhamnolipid biosynthesis gene rhlAB remained persistent in soil inoculated with biosurfactants, indicating in situ production. We propose that the success of the treatment is due to the use of inoculum enriched from the polluted soil.
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Affiliation(s)
- Zheng Li
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Be’er Sheva 8499000, Israel; (L.Z.); (J.Q.); (J.H.); (P.I.); (D.D.-R.)
- Geological Survey of Israel, 32 Yeshayahu Leibowitz St., Jerusalem 9692100, Israel; (R.R.); (F.G.)
| | - Ravid Rosenzweig
- Geological Survey of Israel, 32 Yeshayahu Leibowitz St., Jerusalem 9692100, Israel; (R.R.); (F.G.)
| | - Fengxian Chen
- French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Be’er Sheva 8499000, Israel; (F.C.); (T.L.); (G.A.)
| | - Ji Qin
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Be’er Sheva 8499000, Israel; (L.Z.); (J.Q.); (J.H.); (P.I.); (D.D.-R.)
| | - Tianyi Li
- French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Be’er Sheva 8499000, Israel; (F.C.); (T.L.); (G.A.)
| | - Jincheng Han
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Be’er Sheva 8499000, Israel; (L.Z.); (J.Q.); (J.H.); (P.I.); (D.D.-R.)
| | - Paula Istvan
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Be’er Sheva 8499000, Israel; (L.Z.); (J.Q.); (J.H.); (P.I.); (D.D.-R.)
| | - Damiana Diaz-Reck
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Be’er Sheva 8499000, Israel; (L.Z.); (J.Q.); (J.H.); (P.I.); (D.D.-R.)
| | - Faina Gelman
- Geological Survey of Israel, 32 Yeshayahu Leibowitz St., Jerusalem 9692100, Israel; (R.R.); (F.G.)
| | - Gilboa Arye
- French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Be’er Sheva 8499000, Israel; (F.C.); (T.L.); (G.A.)
| | - Zeev Ronen
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Be’er Sheva 8499000, Israel; (L.Z.); (J.Q.); (J.H.); (P.I.); (D.D.-R.)
- Correspondence:
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He Y, Zhou Q, Mo F, Li T, Liu J. Bioelectrochemical degradation of petroleum hydrocarbons: A critical review and future perspectives. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 306:119344. [PMID: 35483484 DOI: 10.1016/j.envpol.2022.119344] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 04/11/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
As typical pollutants, petroleum hydrocarbons that are widely present in various environmental media such as soil, water, sediments, and air, seriously endanger living organisms and human health. In the meantime, as a green environmental technology that integrates pollutant removal and resource recovery, bioelectrochemical systems (BESs) have been extensively applied to the removal of petroleum hydrocarbons from the environment. This review introduces working principles of BESs, following which it discusses the different reactor structures, application progresses, and key optimization factors when treating water, sewage sludges, sediments, and soil. Furthermore, bibliometrics was first used in this field to analyze the evolution of knowledge structure and forecast future hot topics. The research focus has shifted from the early generation of bioelectric energy to exploring mechanisms of soil remediation and microbial metabolisms, which will be closely integrated in the future. Finally, the future prospects of this field are proposed. This review focuses on the research status of bioelectrochemical degradation of petroleum hydrocarbons and provides a scientific reference for subsequent research.
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Affiliation(s)
- Yuqing He
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Qixing Zhou
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Fan Mo
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Tian Li
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Jianv Liu
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
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Morales-Guzmán G, Ferrera-Cerrato R, Rivera-Cruz MDC, Torres-Bustillos LG, Mendoza-López MR, Esquivel-Cote R, Alarcón A. Phytoremediation of soil contaminated with weathered petroleum hydrocarbons by applying mineral fertilization, an anionic surfactant, or hydrocarbonoclastic bacteria. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:329-338. [PMID: 35704711 DOI: 10.1080/15226514.2022.2083577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This study evaluated the effect of the application of mineral fertilization (F), the anionic surfactant Triton X-100 (TX100), or the inoculation with a hydrocarbooclastic bacterial consortium (BCons) on the growth of Clitoria ternatea during the phytoremediation of a Gleysol contaminated with weathered petroleum hydrocarbons (39,000 mg kg-1 WPH) collected from La Venta, Tabasco (Mexico). The experiment consisted of a completely randomized design with seven treatments and four replications each under greenhouse conditions. The application of F (biostimulation) increased plant growth and biomass production; in contrast, TX100 only favored root biomass (11%) but significantly favored WPH degradation. Bioaugmentation with BCons did not show significant effects on plant growth. Nevertheless, the combination of biostimulation with bioaugmentation (BCons + F, BCons + TX100, and BCons + F+TX100) enhanced plant growth, hydrocarbonoclastic bacteria population, and WPH degradation when compared to treatments with the single application of bioaugmentation (BCons) or biostimulation (F).
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Affiliation(s)
- Gilberto Morales-Guzmán
- Posgrado de Edafología, Colegio de Postgraduados, Montecillo, Texcoco, Estado de México, Mexico
| | - Ronald Ferrera-Cerrato
- Posgrado de Edafología, Colegio de Postgraduados, Montecillo, Texcoco, Estado de México, Mexico
| | - María Del Carmen Rivera-Cruz
- Posgrado en Producción Agroalimentaria en el Trópico, Colegio de Postgraduados, Periférico Carlos A, Cárdenas, Tabasco, Mexico
| | - Luis Gilberto Torres-Bustillos
- Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional (UPIBI-IPN), Ciudad de Mexico, Mexico
| | - Ma Remedios Mendoza-López
- Unidad de Servicios de Apoyo en Resolución Analítica. Universidad Veracruzana, Dr. Luis Castelazo Ayala S/N, Col. Industrial-Animas, Xalapa, Veracruz, Mexico
| | - Rosalba Esquivel-Cote
- Posgrado de Edafología, Colegio de Postgraduados, Montecillo, Texcoco, Estado de México, Mexico
| | - Alejandro Alarcón
- Posgrado de Edafología, Colegio de Postgraduados, Montecillo, Texcoco, Estado de México, Mexico
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Flores Pantoja LE, Briseño Silva E, Loeza Lara PD, Jiménez Mejía R. ACTIVIDAD ANTIFÚNGICA Y CARACTERÍSTICAS DE PROMOCIÓN DE CRECIMIENTO VEGETAL DE Pseudomonas aeruginosa y Enterobacter sp. DEGRADADORAS DE HIDROCARBUROS AISLADAS DE SUELO CONTAMINADO. ACTA BIOLÓGICA COLOMBIANA 2022. [DOI: 10.15446/abc.v27n3.92758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
El diésel es una mezcla compleja de hidrocarburos alifáticos y aromáticos, que por su amplio uso se ha convertido en un contaminante ambiental muy frecuente. Debido a esto, es imperativo explorar alternativas viables y económicas para la remoción de dicho contaminante. El propósito del presente trabajo fue analizar la degradación de diésel por bacterias aisladas de suelo contaminado con esa mezcla de hidrocarburos, así como evaluar su actividad antagónica sobre hongos fitopatógenos, sus características de promoción del crecimiento vegetal y tolerancia a pesados. A partir del enriquecimiento en diésel como única fuente de carbono, se obtuvieron los aislados bacterianos J3 y S3, cuya identificación bioquímica y molecular reveló que corresponden a Pseudomonas aeruginosa y Enterobacter sp., respectivamente. Además, se observó que el crecimiento bacteriano fue mejor entre 2 y 5 % de diésel, mientras que el pH óptimo fue de 7,0 y 8,0 en presencia de 3 % de diésel. También, S3 mostró buen crecimiento a concentraciones de hasta 4 % de NaCl. Por otro lado, las bacterias mostraron inhibición del crecimiento micelial de los hongos fitopatógenos Alternaria sp., Botrytis cinerea, Colletotrichum siamense y Fusarium proliferatum. Además de características de promoción de crecimiento vegetal como producción de ácido indol acético (AIA), solubilización de fosfato, producción de sideróforos y surfactantes. También, se observó que las bacterias crecieron en presencia de metales como Zn, Cu, Ba y Pb, en concentraciones de entre 1,5 y >10 mM. En conclusión, las bacterias aisladas e identificadas en este estudio presentan características que las hacen excelentes candidatas para la remoción de hidrocarburos solas o mediante fitorremediación por sus características de promoción de crecimiento vegetal.
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Zargar AN, Lymperatou A, Skiadas I, Kumar M, Srivastava P. Structural and functional characterization of a novel biosurfactant from Bacillus sp. IITD106. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127201. [PMID: 34560483 DOI: 10.1016/j.jhazmat.2021.127201] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 08/29/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Plant saponins are attractive biosurfactants and have been used to enhance phytoremediation. There are only limited reports on saponins produced by bacteria. Here, we report structural and functional characterization of a novel saponin produced by Bacillus sp. IITD106. Biosurfactant production was determined by emulsion index, drop collapse, oil displacement and hemolytic assays. The biosurfactant was stable over a range of temperature (30 °C to 70 °C), salinity (0-150 g liter-1) and pH (4-10). The surface tension of the medium reduced from 58.89 mN/m to 27.29 mN/m using the isolated biosurfactant. Chromatographic analysis revealed the biosurfactant to be a glycolipid. LCMS, FT-IR and NMR analysis identified the biosurfactant to be a saponin containing two sugar groups and a 5 ringed triterpene sapogenin unit. Genome sequencing of the strain revealed the presence of genes responsible for biosynthesis of saponin. Statistical optimization of culture medium resulted in 9.3-fold increase in biosurfactant production. Kinetics study of biosurfactant production performed in a stirred tank batch bioreactor resulted in 6.04 g liter-1 and 6.9 g liter-1 biomass and biosurfactant concentration, respectively. The biosurfactant was found to solubilize polycyclic aromatic hydrocarbons. The potential of cell free biosurfactant containing broth to enhance oil recovery was tested in a sand pack column and recovery of 63% of residual oil was observed. To our knowledge this is the first report of saponin production by any of the strains of Bacillus.
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Affiliation(s)
- Arif Nissar Zargar
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi 110016, India; Indian Oil Corporation, R&D Centre, Sector-13, Faridabad 121007, India; Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Anna Lymperatou
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Ioannis Skiadas
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Manoj Kumar
- Indian Oil Corporation, R&D Centre, Sector-13, Faridabad 121007, India
| | - Preeti Srivastava
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi 110016, India.
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Molecular identification and primary evaluation of bio-surfactant production in edible paddy straw mushroom. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Li W, Liu M, Siddique MS, Graham N, Yu W. Contribution of bacterial extracellular polymeric substances (EPS) in surface water purification. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 280:116998. [PMID: 33780840 DOI: 10.1016/j.envpol.2021.116998] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/10/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
Naturally present aquatic microorganisms play an important role in water purification systems, such as the self-purification of surface waters. In this study, two water sources representing polluted surface water (Olympic Green; OG) and unpolluted surface water (Jingmi river; JM), were used to explore the self-purification of surface water by bacteria under different environmental conditions. The dominant bacterial community of OG and JM waters (both are Firmicutes and Proteobacteria) were isolated, cultured, and then used to carry out flocculation tests. Results showed that the flocculation ability of the dominant bacteria and extracellular polymeric substances (EPS) obtained from OG isolation was significantly greater than that from JM. Further examination illustrated that the main components of EPS were polysaccharides, which played an important role in improving the flocculation ability of bacteria. EPS from dominant cultural bacteria strains (OG1 and JM3) isolated from the two different sources lacked hydrophilic groups (e.g. COOH) and had a networked structure which are the main reasons to enhance the flocculation ability. The bacterial diversity and redundancy analysis (RDA) results also showed that microbial community composition is determined by water quality (SS, TOC, and NH4+), and different Bacteroidetes, Actinobacteria and Proteobacteria community structures can improve the water body's ability to remove environmental pollutants (such as SS, humic acid and fulvic acid). These findings provide new information showing how bacterial communities change with environmental factors while maintaining the purity of surface water.
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Affiliation(s)
- Weihua Li
- State Key Laboratory of Environmental Aquatic Chemistry, Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, People's Republic of China.
| | - Mengjie Liu
- State Key Laboratory of Environmental Aquatic Chemistry, Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, People's Republic of China
| | - Muhammad Saboor Siddique
- State Key Laboratory of Environmental Aquatic Chemistry, Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, People's Republic of China; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Nigel Graham
- Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom.
| | - Wenzheng Yu
- State Key Laboratory of Environmental Aquatic Chemistry, Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, People's Republic of China.
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Chaida A, Chebbi A, Bensalah F, Franzetti A. Isolation and characterization of a novel rhamnolipid producer Pseudomonas sp. LGMS7 from a highly contaminated site in Ain El Arbaa region of Ain Temouchent, Algeria. 3 Biotech 2021; 11:200. [PMID: 33927990 DOI: 10.1007/s13205-021-02751-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 03/16/2021] [Indexed: 01/03/2023] Open
Abstract
This study aims to isolate and characterize a novel rhamnolipid producer within the recent bioremediation approaches for treating hydrocarbon-contaminated soils in Algeria. In this context, from a hydrocarbon-contaminated soil, a newly bacterium designated LGMS7 was screened and identified, belonged to the Pseudomonas genus, and was closely related to Pseudomonas mucidolens, with a 16S rRNA sequence similarity of 99.05%. This strain was found to use different hydrocarbons and oils as a sole carbon and energy source for growth. It showed a stable emulsification index E24 (%) of 66.66% ± 3.46 when growing in mineral salts medium (MSM) supplemented with 2% (v/v) glycerol after incubation for 6 days at 30 °C. Interestingly, it was also able to reduce the surface tension of the cell-free supernatant to around 30 ± 0.65 mN m-1 with a critical micelle concentration (CMC) of 800 mg l-1. It was found to be able to produce around 1260 ± 0.57 mg l-1 as the yield of rhamnolipid production. Its biosurfactant has demonstrated excellent stability against pH (pH 2.0-12.0), salinity (0-150 g l-1), and temperature (-20 to 121 °C). Based on various chromatographic and spectroscopic techniques (i.e., TLC, FTIR, 1H-NMR), it was found to belong to the glycolipid class (i.e., rhamnolipids). Taken altogether, the strain LGMS7 and its biosurfactant display interesting biotechnological capabilities for the bioremediation of hydrocarbon-contaminated sites. To the best of our knowledge, this is the first study that described the production of biosurfactants by Pseudomonas mucidolens species. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02751-6.
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Affiliation(s)
- Abdelkrim Chaida
- Laboratory of Microbial Genetics (LGM), Department of Biology, Faculty of Natural and Life Sciences, University Oran 1, 31000 Oran, Algeria
| | - Alif Chebbi
- Dept. of Earth and Environmental Sciences-DISAT, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Farid Bensalah
- Laboratory of Microbial Genetics (LGM), Department of Biology, Faculty of Natural and Life Sciences, University Oran 1, 31000 Oran, Algeria
| | - Andrea Franzetti
- Dept. of Earth and Environmental Sciences-DISAT, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
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Biosurfactant production from newly isolated Rhodotorula sp.YBR and its great potential in enhanced removal of hydrocarbons from contaminated soils. World J Microbiol Biotechnol 2021; 37:18. [PMID: 33394175 DOI: 10.1007/s11274-020-02983-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 12/20/2020] [Indexed: 10/22/2022]
Abstract
One of the very promising methods in the field of bioremediation of hydrocarbons is the application of biosurfactant- producing microorganisms based on the use of wastewater as renewable substrates of culture media, contributing to the reduction of costs. With this aim, the production, characterization and properties of the yeast strain YBR producing a biosurfactant newly isolated from an oilfield in Algeria, using wastewater from olive oil mills (OOMW) as a substrate for a low-cost and effective production, have been investigated. Screening of biosurfactant production was carried out with different tests, including emulsification index test (E24), drop collapse test, oil spreading technique and measurement of surface tension (ST). The isolated yeast strain was found to be a potent biosurfactant producer with E24 = 69% and a significant reduction in ST from 72 to 35 mN m-1. The study of the cultural, biochemical, physiological and genetic characteristics of the isolate allowed us to identify it as Rhodotorula sp. strain YBR. Fermentation was carried out in a 2.5 L Minifors Bioreactor using crude OOMW as culture medium, the E24 value reached 90% and a reduction of 72 to 35 mN m-1 in ST. A biosurfactant yield = 10.08 ± 0.38 g L-1 was recorded. The characterization by semi-purification and thin layer chromatography (TLC) of the crude extract of biosurfactant showed the presence of peptides, carbohydrates and lipids in its structure. The crude biosurfactant exhibited interesting properties such as: low critical micellar concentration (CMC), significant reduction in ST and strong emulsifying activity. In addition, it has shown stability over a wide range of pH (2-12), temperature (4-100 °C) and salinity (1-10%). More interestingly, the produced biosurfactant has proven to be of great potential application in the remobilization of hydrocarbons from polluted soil with a removal rate of greater than 95%.
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Genomic analysis of Bacillus cereus NWUAB01 and its heavy metal removal from polluted soil. Sci Rep 2020; 10:19660. [PMID: 33184305 PMCID: PMC7665202 DOI: 10.1038/s41598-020-75170-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 09/28/2020] [Indexed: 11/08/2022] Open
Abstract
Microorganisms that display unique biotechnological characteristics are usually selected for industrial applications. Bacillus cereus NWUAB01 was isolated from a mining soil and its heavy metal resistance was determined on Luria-Bertani agar. The biosurfactant production was determined by screening methods such as drop collapse, emulsification and surface tension measurement. The biosurfactant produced was evaluated for metal removal (100 mg/L of each metal) from contaminated soil. The genome of the organism was sequenced using Illumina Miseq platform. Strain NWUAB01 tolerated 200 mg/L of Cd and Cr, and was also tolerant to 1000 mg/L of Pb. The biosurfactant was characterised as a lipopeptide with a metal-complexing property. The biosurfactant had a surface tension of 39.5 mN/m with metal removal efficiency of 69%, 54% and 43% for Pb, Cd and Cr respectively. The genome revealed genes responsible for metal transport/resistance and biosynthetic gene clusters involved in the synthesis of various secondary metabolites. Putative genes for transport/resistance to cadmium, chromium, copper, arsenic, lead and zinc were present in the genome. Genes responsible for biopolymer synthesis were also present in the genome. This study highlights biosurfactant production and heavy metal removal of strain NWUAB01 that can be harnessed for biotechnological applications.
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Wu M, Guo X, Wu J, Chen K. Effect of compost amendment and bioaugmentation on PAH degradation and microbial community shifting in petroleum-contaminated soil. CHEMOSPHERE 2020; 256:126998. [PMID: 32470727 DOI: 10.1016/j.chemosphere.2020.126998] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 04/28/2020] [Accepted: 05/05/2020] [Indexed: 05/15/2023]
Abstract
Efficient degradation of polycyclic aromatic hydrocarbons (PAHs) in a petroleum-contaminated soil was challenging which requires ample PAH-degrading flora and nutrients. In this study, we investigated the effects of 'natural attenuation', 'bioaugmentation', 'compost only (raw materials of compost included pig manure and rice husk mixed at a 1:2 proportion, supplemented with 2.5% charcoal)', and 'compost with bioaugmentation' treatments on degradation of polycyclic aromatic hydrocarbons (PAHs) and microbial community shifts during the remediation of petroleum-contaminated soil. After sixteen weeks of incubation, the removal efficiencies of PAHs were 0.52 ± 0.04%, 6.92 ± 0. 32%, 9.53 ± 0.29%, and 18.2 ± 0.64% in the four treatments, respectively. 'Compost with bioaugmentation' was the most effective for PAH removal among all the treatments. Illumina sequencing analysis suggested that both the 'compost only' and 'compost with bioaugmentation' treatments changed soil microbial community structures and enhanced microbial biodiversity. Some of the microorganisms affiliated with the compost including Azomonas, Luteimonas, Pseudosphingobacterium, and Parapedobacter were able to survive and become dominant in the contaminated soil. The 'bioaugmentation and 'natural attenuation' treatments had no significant effects on soil microbial community structure. Inoculation of the PAH degraders including Bacillus, Pseudomonas, and Acinetobacter directly into the contaminated soil led to lower biodiversity under natural conditions. This result suggested that compost addition increased the α-diversity of both the bacterial and fungal communities in petroleum-contaminated soil, leading to higher PAH degradation efficiency in petroleum-contaminated soil.
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Affiliation(s)
- Manli Wu
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China; Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China.
| | - Xiqian Guo
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China; Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China
| | - Jialuo Wu
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China; Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China
| | - Kaili Chen
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China; Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China
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de Sousa MA, Muller MP, Berghahn E, de Souza CFV, Granada CE. New enterococci isolated from cheese whey derived from different animal sources: High biotechnological potential as starter cultures. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chaurasia LK, Tamang B, Tirwa RK, Lepcha PL. Influence of biosurfactant producing Bacillus tequilensis LK5.4 isolate of kinema, a fermented soybean, on seed germination and growth of maize ( Zea mays L.). 3 Biotech 2020; 10:297. [PMID: 32550114 DOI: 10.1007/s13205-020-02281-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 05/29/2020] [Indexed: 11/28/2022] Open
Abstract
In this study, the lipopeptide biosurfactant was extracted, purified and characterized from the Bacillus isolate LK5.4 obtained from kinema samples of Sikkim. Plant growth-promoting property of the biosurfactant producing bacterium was also evaluated. Out of fifty-seven isolates, only ten were biosurfactant producer as determined by the oil displacement test. Bacillus isolate LK5.4 showed the maximum emulsification index (52.3 ± 0.02), reduced surface tension up to 40% and produced 754 mgL-1 biosurfactant in the nutrient broth. Based on 16S rRNA gene sequencing, the isolate LK5.4 was identified as B. tequilensis. Biosurfactant was purified by Thin Layer Chromatography (TLC). Evaluation of the chemical characteristics by TLC, Liquid Chromatography-Mass Spectrometry, Fourier Transform Infrared Spectroscopy and Nuclear Magnetic Resonance Spectroscopy identified the biosurfactant as surfactin. The effect of different concentration of biosurfactant in maize seed germination was evaluated under in vitro condition. It showed the fastest growth of seedlings at 300 µg/ml biosurfactant solution. Similar results were shown by the potted plant experiment, where the soil was directly treated with biosurfactant producing bacterium LK5.4. The LK5.4 treated plants showed a mean height of 29.17 ± 0.47 cm and mean leaf length of 18.42 ± 0.17 cm while the mean height and mean length of the leaf were 15.48 ± 0.98 cm and 11.12 ± 0.40 cm respectively in the control plants. The treated plants had higher moisture content (68.48 ± 2.79%) than the control plants (50.53 ± 1.63%), which is because of higher bioadsorption in the treated plants. These results provided indirect evidence of plant growth-promoting property of the biosurfactant.
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Affiliation(s)
- Lalit K Chaurasia
- Department of Microbiology, Sikkim University, 6th Mile, Samdur, Tadong, Sikkim India
| | - Buddhiman Tamang
- Department of Microbiology, Sikkim University, 6th Mile, Samdur, Tadong, Sikkim India
| | - Ranjan K Tirwa
- Department of Microbiology, Sikkim University, 6th Mile, Samdur, Tadong, Sikkim India
| | - Pinkey L Lepcha
- Department of Microbiology, Sikkim University, 6th Mile, Samdur, Tadong, Sikkim India
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Nayarisseri A, Khandelwal R, Singh SK. Identification and Characterization of Lipopeptide Biosurfactant Producing Microbacterium sp Isolated from Brackish River Water. Curr Top Med Chem 2020; 20:2221-2234. [PMID: 32598258 DOI: 10.2174/1568026620666200628144716] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/22/2020] [Accepted: 04/12/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Bioremediation has taken its call for removing pollutants for years. The oilcontaminated surroundings are majorly hazardous for sustaining life, but a great contribution to nature in the form of microorganisms. The complex carbon-hydrogen chain has served as classic raw material to chemical industries, which has perked up the hydrocarbon waste. Microbial remediation has been thus, focused to deal with the lacuna, where the new addition to this category is Microbacterium species. OBJECTIVES The identification and characterization of lipopeptide biosurfactant producing Microbacterium spp. isolated from brackish river water. METHODS The strain was isolated from an oil-contaminated lake. The strain was tested with all the other isolated species for oil degradation using screening protocols such as haemolysis, oil spread assay, BATH, E24, etc. The produced biosurfactant was extracted by acid precipitation, followed by solvent recovery. The strain with maximum potential was sequenced and was subjected to phylogeny assessment using in silico tools. RESULTS Novel Microbacterium species produce the extracellular biosurfactant. The surface tension of Microbacterium was found to be 32mN/m, indicates its powerful surface tension-reducing property. The strain was optimized for the production of biosurfactant and the best results were obtained with sucrose (2%) and yeast extract (3%) medium at 7 pH and 40°C temperature. CONCLUSION The isolate was confirmed to be a novel Microbacterium species that could produce 0.461 gm biosurfactant in 100 ml of the medium throughout a life cycle and novel strain of isolate was deposited to NCBI as Microbacterium spp. ANSKSLAB01 using an accession number: KU179507.
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Affiliation(s)
- Anuraj Nayarisseri
- In silico Research Laboratory, Eminent Biosciences, Indore – 452 010, Madhya Pradesh, India,Bioinformatics Research Laboratory, LeGene Biosciences Pvt Ltd, Indore - 452010, Madhya Pradesh, India,Computer Aided Drug Designing and Molecular Modeling Lab, Department of Bioinformatics, Alagappa University, Karaikudi-630 003, Tamil Nadu, India
| | - Ravina Khandelwal
- In silico Research Laboratory, Eminent Biosciences, Indore – 452 010, Madhya Pradesh, India
| | - Sanjeev Kumar Singh
- Computer Aided Drug Designing and Molecular Modeling Lab, Department of Bioinformatics, Alagappa University, Karaikudi-630 003, Tamil Nadu, India
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Aguila-Torres P, Maldonado J, Gaete A, Figueroa J, González A, Miranda R, González-Stegmaier R, Martin C, González M. Biochemical and Genomic Characterization of the Cypermethrin-Degrading and Biosurfactant-Producing Bacterial Strains Isolated from Marine Sediments of the Chilean Northern Patagonia. Mar Drugs 2020; 18:md18050252. [PMID: 32414006 PMCID: PMC7281626 DOI: 10.3390/md18050252] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/09/2020] [Accepted: 05/11/2020] [Indexed: 11/16/2022] Open
Abstract
Pesticides cause severe environmental damage to marine ecosystems. In the last ten years, cypermethrin has been extensively used as an antiparasitic pesticide in the salmon farming industry located in Northern Patagonia. The objective of this study was the biochemical and genomic characterization of cypermethrin-degrading and biosurfactant-producing bacterial strains isolated from cypermethrin-contaminated marine sediment samples collected in southern Chile (MS). Eleven strains were isolated by cypermethrin enrichment culture techniques and were identified by 16S rDNA gene sequencing analyses. The highest growth rate on cypermethrin was observed in four isolates (MS13, MS15a, MS16, and MS19) that also exhibited high levels of biosurfactant production. Genome sequence analyses of these isolates revealed the presence of genes encoding components of bacterial secondary metabolism, and the enzymes esterase, pyrethroid hydrolase, and laccase, which have been associated with different biodegradation pathways of cypermethrin. These novel cypermethrin-degrading and biosurfactant-producing bacterial isolates have a biotechnological potential for biodegradation of cypermethrin-contaminated marine sediments, and their genomes contribute to the understanding of microbial lifestyles in these extreme environments.
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Affiliation(s)
- Patricia Aguila-Torres
- Laboratorio de Microbiología Molecular, Escuela de Tecnología Médica, Universidad Austral de Chile, Puerto Montt 5504335, Chile;
- Correspondence: (P.A.-T.); (M.G.); Tel.: +56-65-2277118 (P.A.-T.); +56-2-29781440 (M.G.)
| | - Jonathan Maldonado
- Laboratorio de Bioinformática y Expresión Génica, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7810000, Chile; (J.M.); (A.G.)
- Center for Genome Regulation, Santiago 7810000, Chile
- Laboratorio de Biología de Sistemas de Plantas, Departamento Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Alexis Gaete
- Laboratorio de Bioinformática y Expresión Génica, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7810000, Chile; (J.M.); (A.G.)
- Center for Genome Regulation, Santiago 7810000, Chile
| | - Jaime Figueroa
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, Chile; (J.F.); (R.G.-S.)
| | - Alex González
- Laboratorio de Microbiología Ambiental y extremófilos, Departamento de Ciencias Biológicas y Biodiversidad, Universidad de los Lagos, Osorno 5290000, Chile;
| | - Richard Miranda
- Escuela de Ingeniería Civil Industrial, Universidad Austral de Chile, Puerto Montt 5500000, Chile;
| | - Roxana González-Stegmaier
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, Chile; (J.F.); (R.G.-S.)
- Laboratorio Medicina Traslacional, Instituto Clínico Oncológico, Fundación Arturo López Pérez, Santiago 8320000, Chile
| | - Carolina Martin
- Laboratorio de Microbiología Molecular, Escuela de Tecnología Médica, Universidad Austral de Chile, Puerto Montt 5504335, Chile;
| | - Mauricio González
- Laboratorio de Bioinformática y Expresión Génica, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7810000, Chile; (J.M.); (A.G.)
- Center for Genome Regulation, Santiago 7810000, Chile
- Correspondence: (P.A.-T.); (M.G.); Tel.: +56-65-2277118 (P.A.-T.); +56-2-29781440 (M.G.)
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Domingues VS, de Souza Monteiro A, Júlio ADL, Queiroz ALL, Dos Santos VL. Diversity of Metal-Resistant and Tensoactive-Producing Culturable Heterotrophic Bacteria Isolated from a Copper Mine in Brazilian Amazonia. Sci Rep 2020; 10:6171. [PMID: 32277075 PMCID: PMC7148335 DOI: 10.1038/s41598-020-62780-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 03/11/2020] [Indexed: 12/20/2022] Open
Abstract
Bacterial extracellular polymeric substances (EPSs) present diverse properties of biotechnological interest, such as surface modification, metal adsorption and hydrophobic substances solubilization through surface tension reduction. Thus, there is a growing demand for new producing strains and structurally variable biomolecules with different properties. One approach for scanning this biodiversity consists of exploring environments under selective pressures. The aim of this study was to evaluate the composition of culturable heterotrophic bacterial communities from five different sites from a copper mine in the Amazon biome by an enrichment technique to obtain metal resistant bacteria (lead, arsenic, cadmium, copper and zinc) capable of producing EPSs. The bacterial densities at the sites varied from 2.42 × 103 to 1.34 × 108 NMP mL-1 and the 77 bacterial isolates obtained were classified in four divisions, β-Proteobacteria (16.88%), γ-Proteobacteria (7.29%), Firmicutes (61%) and Actinobacteria (12.98%). Bacillus, Alcaligenes, and Lysinibacillus were the most dominant among the 16 observed genera, but the relative frequency of each varied according to the sample and the metal used in the enrichment culture. 58% of the bacterial strains (45) could produce EPSs. From these, 33 strains showed emulsifying activity (E24), and 9 of them reached values higher than 49%. Only Actinomyces viscosus E3.Pb5 and Bacillus subtilis group E3.As2 reduced the medium surface tension to values lower than 35 mN m-1. It was possible to confirm the high presence of bacteria capable of producing EPSs with tensoactive properties in Amazon copper mines and the evolutionary pressure exerted by the heavy metals during enrichment. These molecules can be tested as an alternative for use in processes that involve the removal of metals, such as the bioremediation of contaminated environments.
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Affiliation(s)
- Vitor Sousa Domingues
- Laboratory of Applied Microbiology, Department of Microbiology, Institute of Biological Sciences, Universidade Federal de Minas Gerais. Address: Avenida Presidente Antônio Carlos, 6627 - Pampulha/ICB, Bloco F4, sala 159, C.P. 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Andrea de Souza Monteiro
- Laboratory of Applied Microbiology, Universidade CEUMA, UNICEUMA, Address: Rua Josué Moentello, Jardim Renascença, São Luís, MA, CEP 65075120, Brazil
| | - Aline Daniela Lopes Júlio
- Laboratory of Applied Microbiology, Department of Microbiology, Institute of Biological Sciences, Universidade Federal de Minas Gerais. Address: Avenida Presidente Antônio Carlos, 6627 - Pampulha/ICB, Bloco F4, sala 159, C.P. 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Ana Luiza Lemos Queiroz
- Laboratory of Applied Microbiology, Department of Microbiology, Institute of Biological Sciences, Universidade Federal de Minas Gerais. Address: Avenida Presidente Antônio Carlos, 6627 - Pampulha/ICB, Bloco F4, sala 159, C.P. 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Vera Lúcia Dos Santos
- Laboratory of Applied Microbiology, Department of Microbiology, Institute of Biological Sciences, Universidade Federal de Minas Gerais. Address: Avenida Presidente Antônio Carlos, 6627 - Pampulha/ICB, Bloco F4, sala 159, C.P. 486, Belo Horizonte, MG, 31270-901, Brazil.
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22
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Viesser JA, Sugai-Guerios MH, Malucelli LC, Pincerati MR, Karp SG, Maranho LT. Petroleum-Tolerant Rhizospheric Bacteria: Isolation, Characterization and Bioremediation Potential. Sci Rep 2020; 10:2060. [PMID: 32029873 PMCID: PMC7005311 DOI: 10.1038/s41598-020-59029-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/19/2019] [Indexed: 11/09/2022] Open
Abstract
Petroleum is an important energy source. Due to its intensive exploration, accidents resulting in oil spills on soil are frequent, which creates consequences to ecosystems and human health. Rhizodegradation is an efficient technique that promotes the decontamination of polluted environments through the selection and use of rhizosphere microorganisms from phytoremediation plants. The aim of this study was to isolate, identify and characterize bacteria capable of degrading petroleum from the rhizosphere of Panicum aquaticum Poir., a plant that grows in petroleum contaminated soils. Three bacteria were isolated and characterized at the morphological (Gram staining), molecular (16S rRNA gene sequence analysis) and biochemical level. These bacteria were identified as new strains of Bacillus thurigiensis, Bacillus pumilus and Rhodococcus hoagii, which have been reported as potential bioremediators in the literature. All three bacteria were able to use petroleum hydrocarbons as the sole carbon source during in vitro degradation assays. Gas chromatography analysis of these assays indicated reductions of petroleum hydrocarbons between 23% and 96% within 48 h. Among the isolated bacteria, Rhodococcus hoagii presented the highest efficiency of petroleum consumption, reaching 87% of degradation after only 24 h of cultivation, which corresponds to a higher and faster degradation than previously reported, confirming the potential use of Rhodococcus hoagii for petroleum biodegradation.
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Affiliation(s)
- Jéssica Aparecida Viesser
- PhD Program in Industrial Biotechnology, Universidade Positivo (UP), Av. Pedro Prof. Viriato Parigot de Souza, 5300, CEP 81280-330, Curitiba, PR, Brazil
| | - Maura Harumi Sugai-Guerios
- PhD Program in Industrial Biotechnology, Universidade Positivo (UP), Av. Pedro Prof. Viriato Parigot de Souza, 5300, CEP 81280-330, Curitiba, PR, Brazil
| | - Lucca Centa Malucelli
- PhD Program in Environmental Management, Universidade Positivo (UP), Av. Pedro Prof. Viriato Parigot de Souza, 5300, CEP 81280-330, Curitiba, PR, Brazil
| | - Marcia Regina Pincerati
- PhD Program in Industrial Biotechnology, Universidade Positivo (UP), Av. Pedro Prof. Viriato Parigot de Souza, 5300, CEP 81280-330, Curitiba, PR, Brazil
| | - Susan Grace Karp
- PhD Program in Industrial Biotechnology, Universidade Positivo (UP), Av. Pedro Prof. Viriato Parigot de Souza, 5300, CEP 81280-330, Curitiba, PR, Brazil.,PhD Program in Bioprocess Engineering and Biotechnology, Universidade Federal do Paraná, Caixa Postal 19011 - ACF Centro Politécnico, CEP 81531-980, Curitiba, PR, Brazil
| | - Leila Teresinha Maranho
- PhD Program in Industrial Biotechnology, Universidade Positivo (UP), Av. Pedro Prof. Viriato Parigot de Souza, 5300, CEP 81280-330, Curitiba, PR, Brazil.
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23
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Wu M, Wu J, Zhang X, Ye X. Effect of bioaugmentation and biostimulation on hydrocarbon degradation and microbial community composition in petroleum-contaminated loessal soil. CHEMOSPHERE 2019; 237:124456. [PMID: 31376701 DOI: 10.1016/j.chemosphere.2019.124456] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 06/24/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
This study assessed the benefits of biostimulation with nitrogen and phosphorous (BS) versus bioaugmentation with native petroleum degrading flora (BA) in terms of petroleum hydrocarbon removal and microbial community structure shift in petroleum-polluted loessal soil. After 12 weeks of remediation, the TPH degradation efficiencies were 28.3% and 13.9% in BS and BA treated soils, respectively. Biostimulation was more effective than bioaugmentation for petroleum hydrocarbon degradation. Soil microbial community composition changed while microbial diversity decreased greatly by bioaugmentation treatment. The inoculum could survive, grow up quickly and become the predominant microorganisms after one week of inoculation. In the biostimulation treatment, microbial community composition is more evenness and richness than in the bioaugmented remediation. The strong positive correlations of the nitrogen and phosphorus with the petroleum hydrocarbon suggest the importance of nutrients for petroleum biodegradation in the contaminated loessal soil. The results indicate that the stabilization and variety of the microbial community structure are essential for the petroleum biodegradation performance. Further engineering is suggested to improve the evenness and richness of the soil microbial community since an abundance of nitrogen and phosphorus nutrients ensures the degraders' activity in the petroleum polluted soil.
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Affiliation(s)
- Manli Wu
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China; Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China.
| | - Jialuo Wu
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China; Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China
| | - Xiaohui Zhang
- Exploration and Development Research Institute of Changqing Oilfield Company, PetroChina, Xi'an, 710018, People's Republic of China
| | - Xiqiong Ye
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China; Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China
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24
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Khoshkholgh Sima NA, Ebadi A, Reiahisamani N, Rasekh B. Bio-based remediation of petroleum-contaminated saline soils: Challenges, the current state-of-the-art and future prospects. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 250:109476. [PMID: 31476519 DOI: 10.1016/j.jenvman.2019.109476] [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: 05/09/2019] [Revised: 08/17/2019] [Accepted: 08/25/2019] [Indexed: 06/10/2023]
Abstract
Exploiting synergism between plants and microbes offers a potential means of remediating soils contaminated with petroleum hydrocarbons (PHCs). Salinity alters the physicochemical characteristics of soils and suppresses the growth of both plants and soil microbes, so the bioremediation of saline soils requires the use of plants and in microbes which can tolerate salinity. This review focuses on the management of PHC-contaminated saline soils, surveying what is currently known with respect to the potential of halophytes (plants adapted to saline environments) acting in concert with synergistic microbes to degrade PHCs. The priority is to identify optimal combinations of halophyte(s) and the bacteria present as endophytes and/or associated with the rhizosphere, and to determine what are the factors which most strongly affect their viability.
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Affiliation(s)
- Nayer Azam Khoshkholgh Sima
- Agricultural Biotechnology Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Ali Ebadi
- Agricultural Biotechnology Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Narges Reiahisamani
- Agricultural Biotechnology Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Behnam Rasekh
- Microbiology and Biotechnology Research Group, Research Institute of Petroleum Industry, Tehran, Iran.
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25
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Kim CH, Lee DW, Heo YM, Lee H, Yoo Y, Kim GH, Kim JJ. Desorption and solubilization of anthracene by a rhamnolipid biosurfactant from Rhodococcus fascians. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2019; 91:739-747. [PMID: 30874337 DOI: 10.1002/wer.1103] [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: 02/01/2019] [Revised: 02/28/2019] [Accepted: 03/11/2019] [Indexed: 05/05/2023]
Abstract
The rhamnolipid biosurfactant-producing bacterium, strain SDRB-G7, was isolated from the sediment of Sindu-ri beach and identified as Rhodococcus fascians based on a phylogenetic analysis. Optimal activity, with the highest yield (2.441 g/L) and surface tension-reducing activity (24.38 mN/m), was observed when the cells were grown on olive oil as their sole source of carbon at pH 8.0. The rhamnolipid biosurfactant showed environmental stability at a variety of NaCl concentrations (2-20%) and pH values (2-12) even under acidic conditions. Of the initial anthracene, 66% was solubilized by 100% crude biosurfactant. Furthermore, 100% crude biosurfactant desorbed 81% of the anthracene in sediment into the aqueous phase. These results suggest that the rhamnolipid biosurfactant produced from R. fascians SDRB-G7 is a promising candidate for polycyclic aromatic hydrocarbon (PAH) removal from the sediment and can be an effective agent for processes that bioremediate PAHs such as surfactant-enhanced remediation. PRACTITIONER POINTS: Biosurfactants can accelerate desorption of PAHs and improve their solubility. BS-producing R. fascians SDRB-G7 was selected by screening of biochemical tests. Solubility of anthracene was enhanced by rhamnolipid produced by strain SDRB-G7. Microbial surfactant is a promising alternative for bioremediation of PAH-polluted sites.
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Affiliation(s)
- Chul-Hwan Kim
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, Korea
| | - Dong Wan Lee
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, Korea
| | - Young Mok Heo
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, Korea
| | - Hanbyul Lee
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, Korea
| | - Yeonjae Yoo
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, Korea
| | - Gyu-Hyeok Kim
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, Korea
| | - Jae-Jin Kim
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, Korea
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26
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Pacwa-Płociniczak M, Czapla J, Płociniczak T, Piotrowska-Seget Z. The effect of bioaugmentation of petroleum-contaminated soil with Rhodococcus erythropolis strains on removal of petroleum from soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 169:615-622. [PMID: 30496993 DOI: 10.1016/j.ecoenv.2018.11.081] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 11/15/2018] [Accepted: 11/19/2018] [Indexed: 06/09/2023]
Abstract
The aim of the study was to assess the impact of inoculation of petroleum-contaminated soil with the hydrocarbon-degrading bacterial strains Rhodococcus erythropolis CD 130 and CD 167 or their consortium on the removal of hydrocarbons from the soil. Additionally, changes in the activity and structure of soil autochthonous bacterial communities were studied. At the end of the experiment, the fastest hydrocarbon removal was seen in the soil treated with the CD 167 strain (38.40%) and was statistically higher compared to the removal of total petroleum hydrocarbons (TPH) observed in soils inoculated with strain CD 130 (29.8%) or bacterial consortium CD 130 + CD 167 (29.72%). The rifampicin-resistant CD 130 and CD 167 strains, introduced as single strains or a consortium, survived in the soil for 42 days. The introduction of gram-positive strains of R. erythropolis primarily caused an increase in the biomass of branched phospholipid fatty acids (PLFAs), characteristic for gram-positive bacteria. Nevertheless, changes in the concentrations of gram-positive and gram-negative PLFA markers were periodic, and at the end of the experiment, significant changes were observed only in the case of the soil bioaugmented with the CD 167 strain. After the bioaugmentation, higher values of substrate-induced respiration (SIR) were observed in all the inoculated soils compared to the non-inoculated control. Nonetheless, after 91 days of incubation, a significant decrease in soil respiration was observed in the soil treated with single CD 130 or CD 167 strains or with their consortium. The number of transcripts of the CYP153 gene obtained on days 91 and 182 reflected the results of the hydrocarbon loss. The level of expression of the alkH gene in experimental soil was estimated and found to be higher than the level of expression of the CYP153 gene but did not coincide with the loss of hydrocarbons. The introduction of strains CD 130, CD 167, or CD 130 + CD 167 caused temporary changes in the composition of the soil autochthonous bacterial community, but it seems that these changes were needed for the enhanced removal of hydrocarbons from this soil.
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Affiliation(s)
| | - Joanna Czapla
- Department of Microbiology, University of Silesia, Jagiellońska 28, 40-032 Katowice, Poland.
| | - Tomasz Płociniczak
- Department of Microbiology, University of Silesia, Jagiellońska 28, 40-032 Katowice, Poland.
| | - Zofia Piotrowska-Seget
- Department of Microbiology, University of Silesia, Jagiellońska 28, 40-032 Katowice, Poland.
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27
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Gaur VK, Bajaj A, Regar RK, Kamthan M, Jha RR, Srivastava JK, Manickam N. Rhamnolipid from a Lysinibacillus sphaericus strain IITR51 and its potential application for dissolution of hydrophobic pesticides. BIORESOURCE TECHNOLOGY 2019; 272:19-25. [PMID: 30296609 DOI: 10.1016/j.biortech.2018.09.144] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/28/2018] [Accepted: 09/30/2018] [Indexed: 06/08/2023]
Abstract
Rhamnolipid produced from a Lysinibacillus sphaericus IITR51 was characterized and its ability for dissolution of hydrophobic pesticides were evaluated. L. sphaericus produced 1.6 g/L of an anionic biosurfactant that reduced surface tension from 72 N/m to 52 N/m with 48% emulsification index. The biosurfactant was found stable over a wide range of pH (4.0-10.0), temperature (4-100 °C), salt concentration (2-14%) and was identified as rhamnolipid. At the concentration of 90 mg/L rhamnolipid showed enhanced dissolution of α-, β-endosulfan, and γ-hexachlorocyclohexane up to 7.2, 2.9, and 1.8 folds, respectively. The bacterium utilized benzoic acid, chlorobenzene, 3- and 4-chlorobenzoic acid as sole source of carbon and was found resistant to arsenic, lead and cadmium. Furthermore, the isolated biosurfactant showed antimicrobial activities against different pathogenic bacteria. The results obtained indicate the usefulness of rhamnolipid for enhanced dissolution and thereby increasing the bioavailability.
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Affiliation(s)
- Vivek Kumar Gaur
- Environmental Biotechnology Division, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, India
| | - Abhay Bajaj
- Environmental Biotechnology Division, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Raj Kumar Regar
- Environmental Biotechnology Division, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Department of Biochemistry, School of Dental Sciences, Babu Banarsi Das University, Lucknow 226028, Uttar Pradesh, India
| | - Mohan Kamthan
- Environmental Biotechnology Division, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Rakesh Roshan Jha
- Analytical Chemistry Laboratory, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Janmejai Kumar Srivastava
- Department of Biochemistry, School of Dental Sciences, Babu Banarsi Das University, Lucknow 226028, Uttar Pradesh, India
| | - Natesan Manickam
- Environmental Biotechnology Division, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India.
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28
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Bio-emulsifying and biodegradation activities of syringafactin producing Pseudomonas spp. strains isolated from oil contaminated soils. Biodegradation 2018; 30:259-272. [DOI: 10.1007/s10532-018-9861-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 10/17/2018] [Indexed: 12/11/2022]
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29
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Al-Hawash AB, Zhang X, Ma F. Removal and biodegradation of different petroleum hydrocarbons using the filamentous fungus Aspergillus sp. RFC-1. Microbiologyopen 2018; 8:e00619. [PMID: 29577679 PMCID: PMC6341139 DOI: 10.1002/mbo3.619] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 02/15/2018] [Accepted: 02/16/2018] [Indexed: 11/22/2022] Open
Abstract
Petroleum pollution inevitably occurs at any stage of oil production and exerts a negative impact on the environment. Some microorganisms can degrade petroleum hydrocarbons (PHs). Polluted sludge of Rumaila oil field was use to isolate the highly efficient hydrocarbon‐degrading fungal strain. Aspergillus sp. RFC‐1 was obtained and its degradation ability for petroleum hydrocarbons was evaluated through surface adsorption, cell uptake, hydrophobicity, surface tension, biosurfactant production, and emulsification activity. In addition, the degradation mechanism was investigated. The results indicated the strain RFC‐1 showed high removal activity for PHs, including biodegradation, adsorption, and emulsifiability. On the day 7 of incubation, the removal efficiencies of crude oil, naphthalene (NAP), phenanthrene (PHE), and pyrene (PYR) reached 60.3%, 97.4%, 84.9%, and 90.7%, respectively. Biodegradation efficiencies of crude oil, NAP, PHE, and PYR were 51.8%, 84.6%, 50.3%, and 55.1%, respectively. Surface adsorption and cell absorption by live mycelial pellets followed a decreasing order: PYR ≥ PHE > NAP > crude oil. Adsorption by heat‐killed mycelial pellets increased within 40 and 10 min for crude oil and PAHs, respectively, and remained constant thereafter. Effects of cell surface hydrophobicity, surface tension, and emulsification index were discussed. Intra‐ and extracellular enzymes of strain RFC‐1 played important roles in PHs degradation. The strain RFC‐1 is a prospective strain for removing PHs from aqueous environments.
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Affiliation(s)
- Adnan B Al-Hawash
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education, Directorate of Education, Basra, Iraq
| | - Xiaoyu Zhang
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Fuying Ma
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
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30
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Hasani Zadeh P, Moghimi H, Hamedi J. Biosurfactant production by Mucor circinelloides: Environmental applications and surface-active properties. Eng Life Sci 2018; 18:317-325. [PMID: 32624911 DOI: 10.1002/elsc.201700149] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 12/06/2017] [Accepted: 01/26/2018] [Indexed: 11/06/2022] Open
Abstract
Biosurfactants are structurally a diverse group of surface-active molecules widely used for various purposes in industry. In this study, among 120 fungal isolates, M-06 was selected as a superior biosurfactant producer, based on different standard methods, and was identified as Mucor circinelloides on the basis of its nucleotide sequence of the internal transcribed spacer (ITS) gene. M. circinelloides reduced the surface tension to 26 mN/m and its EI24 index was determined to be 66.6%. The produced biosurfactant exhibited a high degree of stability at a high temperature (121°C), salinity (40 g/L), and acidic pH (2-8). The fermentation broth's ability to recover oil from contaminated sand was 2 and 1.8 times higher than those of water and Tween 80, respectively. The ability of biosurfactant to emulsify crude oil in the sea and fresh water was 64.9 and 48% respectively. This strain could remove 87.6% of crude oil in the Minimal Salt Medium (MSM) crude oil as the sole carbon source. The results from a primary chemical characterization of crude biosurfactant suggest that it is of a glycolipid nature. The strain and its biosurfactant could be used as a potent candidate in bioremediation of oil-contaminated water, soil, and for oil recovery processes.
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Affiliation(s)
- Parvin Hasani Zadeh
- Department of Microbial Biotechnology School of Biology College of Science University of Tehran Tehran Iran
| | - Hamid Moghimi
- Department of Microbial Biotechnology School of Biology College of Science University of Tehran Tehran Iran
| | - Javad Hamedi
- Department of Microbial Biotechnology School of Biology College of Science University of Tehran Tehran Iran.,Microbial Technology and Products Research Centre University of Tehran Tehran Iran
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31
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Narenkumar J, Ramesh N, Rajasekar A. Control of corrosive bacterial community by bronopol in industrial water system. 3 Biotech 2018; 8:55. [PMID: 29354366 PMCID: PMC5756150 DOI: 10.1007/s13205-017-1071-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 12/26/2017] [Indexed: 10/18/2022] Open
Abstract
ABSTRACT Ten aerobic corrosive bacterial strains were isolated from a cooling tower water system (CWS) which were identified based on the biochemical characterization and 16S rRNA gene sequencing. Out of them, dominant corrosion-causing bacteria, namely, Bacillus thuringiensis EN2, Terribacillus aidingensis EN3, and Bacillus oleronius EN9, were selected for biocorrosion studies on mild steel 1010 (MS) in a CWS. The biocorrosion behaviour of EN2, EN3, and EN9 strains was studied using immersion test (weight loss method), electrochemical analysis, and surface analysis. To address the corrosion problems, an anti-corrosive study using a biocide, bronopol was also demonstrated. Scanning electron microscopy and Fourier-transform infrared spectroscopy analyses of the MS coupons with biofilm developed after exposure to CWS confirmed the accumulation of extracellular polymeric substances and revealed that biofilms was formed as microcolonies, which subsequently cause pitting corrosion. In contrast, the biocide system, no pitting type of corrosion, was observed and weight loss was reduced about 32 ± 2 mg over biotic system (286 ± 2 mg). FTIR results confirmed the adsorption of bronopol on the MS metal surface as protective layer (co-ordination of NH2-Fe3+) to prevent the biofilm formation and inhibit the corrosive chemical compounds and thus led to reduction of corrosion rate (10 ± 1 mm/year). Overall, the results from WL, EIS, SEM, XRD, and FTIR concluded that bronopol was identified as effective biocide and corrosion inhibitor which controls the both chemical and biocorrosion of MS in CWS. GRAPHICAL ABSTRACT
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Affiliation(s)
- Jayaraman Narenkumar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu 632115 India
| | - Nachimuthu Ramesh
- School of Bio Sciences and Technology, VIT University, Vellore, Tamilnadu 632 014 India
| | - Aruliah Rajasekar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu 632115 India
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Ndlovu T, Rautenbach M, Vosloo JA, Khan S, Khan W. Characterisation and antimicrobial activity of biosurfactant extracts produced by Bacillus amyloliquefaciens and Pseudomonas aeruginosa isolated from a wastewater treatment plant. AMB Express 2017; 7:108. [PMID: 28571306 PMCID: PMC5451374 DOI: 10.1186/s13568-017-0363-8] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 03/06/2017] [Indexed: 11/17/2022] Open
Abstract
Biosurfactants are unique secondary metabolites, synthesised non-ribosomally by certain bacteria, fungi and yeast, with their most promising applications as antimicrobial agents and surfactants in the medical and food industries. Naturally produced glycolipids and lipopeptides are found as a mixture of congeners, which increases their antimicrobial potency. Sensitive analysis techniques, such as liquid chromatography coupled to mass spectrometry, enable the fingerprinting of different biosurfactant congeners within a naturally produced crude extract. Bacillus amyloliquefaciens ST34 and Pseudomonas aeruginosa ST5, isolated from wastewater, were screened for biosurfactant production. Biosurfactant compounds were solvent extracted and characterised using ultra-performance liquid chromatography (UPLC) coupled to electrospray ionisation mass spectrometry (ESI-MS). Results indicated that B. amyloliquefaciens ST34 produced C13-16 surfactin analogues and their identity were confirmed by high resolution ESI-MS and UPLC-MS. In the crude extract obtained from P. aeruginosa ST5, high resolution ESI-MS linked to UPLC-MS confirmed the presence of di- and monorhamnolipid congeners, specifically Rha-Rha-C10-C10 and Rha-C10-C10, Rha-Rha-C8-C10/Rha-Rha-C10-C8 and Rha-C8-C10/Rha-C10-C8, as well as Rha-Rha-C12-C10/Rha-Rha-C10-C12 and Rha-C12-C10/Rha-C10-C12. The crude surfactin and rhamnolipid extracts also retained pronounced antimicrobial activity against a broad spectrum of opportunistic and pathogenic microorganisms, including antibiotic resistant Staphylococcus aureus and Escherichia coli strains and the pathogenic yeast Candida albicans. In addition, the rapid solvent extraction combined with UPLC-MS of the crude samples is a simple and powerful technique to provide fast, sensitive and highly specific data on the characterisation of biosurfactant compounds.
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Affiliation(s)
- Thando Ndlovu
- Department of Microbiology, Faculty of Science, Stellenbosch University, Private Bag X1, Stellenbosch, 7602 South Africa
| | - Marina Rautenbach
- BIOPEP Peptide Group, Department of Biochemistry, Faculty of Science, Stellenbosch University, Private Bag X1, Stellenbosch, 7602 South Africa
| | - Johann Arnold Vosloo
- BIOPEP Peptide Group, Department of Biochemistry, Faculty of Science, Stellenbosch University, Private Bag X1, Stellenbosch, 7602 South Africa
| | - Sehaam Khan
- Faculty of Health and Applied Sciences, Namibia University of Science and Technology, 13 Storch Street, Private Bag 13388, Windhoek, Namibia
| | - Wesaal Khan
- Department of Microbiology, Faculty of Science, Stellenbosch University, Private Bag X1, Stellenbosch, 7602 South Africa
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Nakazawa MM, Gavazza S, Kato MT, Florencio L. Evaluation of rhamnolipid addition on the natural attenuation of estuarine sediments contaminated with diesel oil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:25522-25533. [PMID: 27388594 DOI: 10.1007/s11356-016-7152-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 06/26/2016] [Indexed: 06/06/2023]
Abstract
The aim of the present study was to assess the bioremediation of estuarine sediments contaminated with diesel oil. The following two experiments were performed: natural attenuation (NA) and stimulated natural attenuation (SNA), using rhamnolipid as biosurfactant. Sediment samples were accommodated into glass columns and then contaminated with diesel oil on the top. The column profiles were separated into surface, middle, and bottom for the analyses. The 16 polycyclic aromatic hydrocarbons (PAHs) prioritized by US Environmental Protection Agency (EPA) were monitored for 349 days. Those with three and four rings showed increasing concentrations through the operation period in the middle and bottom samples, particularly between days 111 and 338, and in the SNA experiment. Those with five and six rings were also detected in the deeper portions of the columns, suggesting the percolation of PAHs with a high molecular weight. Total organic carbon was reduced by 91 and 89 % in the NA and SNA samples, respectively, although no statistically significant differences (p > 0.05) were found between the two treatments. The analyses by denaturing gradient gel electrophoresis indicated a slight shift in the microbial community structure over the experiments. Microorganisms belonging to the γ-Proteobacteria phylum were the main bacteria involved. The archaeal community exhibited dominance of hydrogenotrophic methanogens, indicating the obligate anaerobic biodegradation of intermediate compounds from hydrocarbon degradation.
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Affiliation(s)
- Mitsue M Nakazawa
- Laboratory of Environmental Sanitation, Department of Civil and Environmental Engineering, Federal University of Pernambuco, Av. Acadêmico Hélio Ramos, s/n. Cidade Universitária, CEP, Recife, PE, 50740-530, Brazil
| | - Sávia Gavazza
- Laboratory of Environmental Sanitation, Department of Civil and Environmental Engineering, Federal University of Pernambuco, Av. Acadêmico Hélio Ramos, s/n. Cidade Universitária, CEP, Recife, PE, 50740-530, Brazil.
| | - Mario T Kato
- Laboratory of Environmental Sanitation, Department of Civil and Environmental Engineering, Federal University of Pernambuco, Av. Acadêmico Hélio Ramos, s/n. Cidade Universitária, CEP, Recife, PE, 50740-530, Brazil
| | - Lourdinha Florencio
- Laboratory of Environmental Sanitation, Department of Civil and Environmental Engineering, Federal University of Pernambuco, Av. Acadêmico Hélio Ramos, s/n. Cidade Universitária, CEP, Recife, PE, 50740-530, Brazil
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Borowik A, Wyszkowska J, Wyszkowski M. Resistance of aerobic microorganisms and soil enzyme response to soil contamination with Ekodiesel Ultra fuel. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:24346-24363. [PMID: 28890995 PMCID: PMC5655587 DOI: 10.1007/s11356-017-0076-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 09/01/2017] [Indexed: 05/04/2023]
Abstract
This study determined the susceptibility of cultured soil microorganisms to the effects of Ekodiesel Ultra fuel (DO), to the enzymatic activity of soil and to soil contamination with PAHs. Studies into the effects of any type of oil products on reactions taking place in soil are necessary as particular fuels not only differ in the chemical composition of oil products but also in the composition of various fuel improvers and antimicrobial fuel additives. The subjects of the study included loamy sand and sandy loam which, in their natural state, have been classified into the soil subtype 3.1.1 Endocalcaric Cambisols. The soil was contaminated with the DO in amounts of 0, 5 and 10 cm3 kg-1. Differences were noted in the resistance of particular groups or genera of microorganisms to DO contamination in loamy sand (LS) and sandy loam (SL). In loamy sand and sandy loam, the most resistant microorganisms were oligotrophic spore-forming bacteria. The resistance of microorganisms to DO contamination was greater in LS than in SL. It decreased with the duration of exposure of microorganisms to the effects of DO. The factor of impact (IFDO) on the activity of particular enzymes varied. For dehydrogenases, urease, arylsulphatase and β-glucosidase, it had negative values, while for catalase, it had positive values and was close to 0 for acid phosphatase and alkaline phosphatase. However, in both soils, the noted index of biochemical activity of soil (BA) decreased with the increase in DO contamination. In addition, a positive correlation occurred between the degree of soil contamination and its PAH content.
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Affiliation(s)
- Agata Borowik
- Department of Microbiology, University of Warmia and Mazury in Olsztyn, Plac Łódzki 3, 10-727 Olsztyn, Poland
| | - Jadwiga Wyszkowska
- Department of Microbiology, University of Warmia and Mazury in Olsztyn, Plac Łódzki 3, 10-727 Olsztyn, Poland
| | - Mirosław Wyszkowski
- Department of Environmental Chemistry, University of Warmia and Mazury in Olsztyn, Plac Łódzki 4, 10-727 Olsztyn, Poland
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Isolation, characterization, and optimization of biosurfactant production by an oil-degrading Acinetobacter junii B6 isolated from an Iranian oil excavation site. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2017. [DOI: 10.1016/j.bcab.2017.08.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Angeles O, Medina-Moreno S, Jiménez-González A, Coreño-Alonso A, Lizardi-Jiménez M. Predominant mode of diesel uptake: Direct interfacial versus emulsification in multiphase bioreactor. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.02.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lizardi-Jiménez MA, Hernández-Martínez R. Solid state fermentation (SSF): diversity of applications to valorize waste and biomass. 3 Biotech 2017; 7:44. [PMID: 28444587 DOI: 10.1007/s13205-017-0692-y] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 03/13/2017] [Indexed: 12/01/2022] Open
Abstract
Solid state fermentation is currently used in a range of applications including classical applications, such as enzyme or antibiotic production, recently developed products, such as bioactive compounds and organic acids, new trends regarding bioethanol and biodiesel as sources of alternative energy, and biosurfactant molecules with environmental purposes of valorising unexploited biomass. This work summarizes the diversity of applications of solid state fermentation to valorize biomass regarding alternative energy and environmental purposes. The success of applying solid state fermentation to a specific process is affected by the nature of specific microorganisms and substrates. An exhaustive number of microorganisms able to grow in a solid matrix are presented, including fungus such as Aspergillus or Penicillum for antibiotics, Rhizopus for bioactive compounds, Mortierella for biodiesel to bacteria, Bacillus for biosurfactant production, or yeast for bioethanol.
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Affiliation(s)
- M A Lizardi-Jiménez
- CONACYT-Instituto Tecnológico Superior de Tierra Blanca, Av. Veracruz S/N Esq., Héroes de Puebla, Colonia Pemex, C.P. 95180, Tierra Blanca, Veracruz, Mexico
| | - R Hernández-Martínez
- CONACYT-Instituto Tecnológico Superior de Tierra Blanca, Av. Veracruz S/N Esq., Héroes de Puebla, Colonia Pemex, C.P. 95180, Tierra Blanca, Veracruz, Mexico.
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38
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Isolation and Characterization of Biosurfactant Producing and Crude Oil Degrading Bacteria from Oil Contaminated Soils. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A-SCIENCE 2017. [DOI: 10.1007/s40995-017-0162-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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39
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Mycoremediation of Heavy Metal and Hydrocarbon Pollutants by Endophytic Fungi. Fungal Biol 2017. [DOI: 10.1007/978-3-319-68957-9_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Goswami M, Bhattacharyya P, Mukherjee I, Tribedi P. Functional Diversity: An Important Measure of Ecosystem Functioning. ACTA ACUST UNITED AC 2017. [DOI: 10.4236/aim.2017.71007] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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Koshlaf E, Shahsavari E, Aburto-Medina A, Taha M, Haleyur N, Makadia TH, Morrison PD, Ball AS. Bioremediation potential of diesel-contaminated Libyan soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 133:297-305. [PMID: 27479774 DOI: 10.1016/j.ecoenv.2016.07.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 07/19/2016] [Accepted: 07/20/2016] [Indexed: 06/06/2023]
Abstract
Bioremediation is a broadly applied environmentally friendly and economical treatment for the clean-up of sites contaminated by petroleum hydrocarbons. However, the application of this technology to contaminated soil in Libya has not been fully exploited. In this study, the efficacy of different bioremediation processes (necrophytoremediation using pea straw, bioaugmentation and a combination of both treatments) together with natural attenuation were assessed in diesel contaminated Libyan soils. The addition of pea straw was found to be the best bioremediation treatment for cleaning up diesel contaminated Libyan soil after 12 weeks. The greatest TPH degradation, 96.1% (18,239.6mgkg(-1)) and 95% (17,991.14mgkg(-1)) were obtained when the soil was amended with pea straw alone and in combination with a hydrocarbonoclastic consortium respectively. In contrast, natural attenuation resulted in a significantly lower TPH reduction of 76% (14,444.5mgkg(-1)). The presence of pea straw also led to a significant increased recovery of hydrocarbon degraders; 5.7log CFU g(-1) dry soil, compared to 4.4log CFUg(-1) dry soil for the untreated (natural attenuation) soil. DGGE and Illumina 16S metagenomic analyses confirm shifts in bacterial communities compared with original soil after 12 weeks incubation. In addition, metagenomic analysis showed that original soil contained hydrocarbon degraders (e.g. Pseudoxanthomonas spp. and Alcanivorax spp.). However, they require a biostimulant (in this case pea straw) to become active. This study is the first to report successful oil bioremediation with pea straw in Libya. It demonstrates the effectiveness of pea straw in enhancing bioremediation of the diesel-contaminated Libyan soil.
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Affiliation(s)
- Eman Koshlaf
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, Victoria 3083, Australia; Department of Biology, Faculty of Science Algabal Algarbi University, Gharian, Libya
| | - Esmaeil Shahsavari
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, Victoria 3083, Australia
| | - Arturo Aburto-Medina
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, Victoria 3083, Australia
| | - Mohamed Taha
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, Victoria 3083, Australia; Department of Biochemistry, Faculty of Agriculture, Benha University, Moshtohor, Toukh 13736, Egypt
| | - Nagalakshmi Haleyur
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, Victoria 3083, Australia
| | - Tanvi H Makadia
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, Victoria 3083, Australia
| | - Paul D Morrison
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, Victoria 3083, Australia
| | - Andrew S Ball
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, Victoria 3083, Australia.
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42
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Shetaia YMH, El Khalik WAA, Mohamed TM, Farahat LA, ElMekawy A. Potential biodegradation of crude petroleum oil by newly isolated halotolerant microbial strains from polluted Red Sea area. MARINE POLLUTION BULLETIN 2016; 111:435-442. [PMID: 26902685 DOI: 10.1016/j.marpolbul.2016.02.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 02/12/2016] [Accepted: 02/14/2016] [Indexed: 05/15/2023]
Abstract
Two microbial isolates from oil polluted Red Sea water in Egypt, designated as RS-Y1 and RS-F3, were found capable of degrading Belayim mix (BX) crude oil. Strains RS-Y1 and RS-F3 were assigned to the genera Lipomyces tetrasporus and Paecilomyces variotii based on their morphological and physiological characteristics. Both isolates were compared for the biodegradation of crude petroleum-oil hydrocarbons in basal salt medium supplemented with 5% (w/v) of BX-crude oil. Gas chromatography profile showed that the biodegradation of total petroleum hydrocarbons (TPHs) inoculated with L. tetrasporus (68.3%) and P. variotii (58.15%) along with their consortium (66%) significantly reduced TPHs levels as compared to the control after 30days. L. tetrasporus (44.5%) was more effective than P. variotii strain (32.89%) in reducing the unresolved complex mixtures (UCM) content from the medium. Both isolates exhibited a strong growth over a wide range of salinity (5-45g/L NaCl).
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Affiliation(s)
| | | | - Tarek M Mohamed
- Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | | | - Ahmed ElMekawy
- Department of Industrial Biotechnology, Genetic Engineering and Biotechnology Research Institute, University of Sadat City (USC), Sadat City, Egypt; School of Chemical Engineering, University of Adelaide, Adelaide, Australia.
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44
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Haloalkaliphilic Bacillus species from solar salterns: an ideal prokaryote for bioprospecting studies. ANN MICROBIOL 2016. [DOI: 10.1007/s13213-016-1221-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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45
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Festa S, Macchi M, Cortés F, Morelli IS, Coppotelli BM. Monitoring the impact of bioaugmentation with a PAH-degrading strain on different soil microbiomes using pyrosequencing. FEMS Microbiol Ecol 2016; 92:fiw125. [PMID: 27279417 DOI: 10.1093/femsec/fiw125] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2016] [Indexed: 11/15/2022] Open
Abstract
The effect of bioaugmentation with Sphingobium sp. AM strain on different soils microbiomes, pristine soil (PS), chronically contaminated soil (IPK) and recently contaminated soil (Phe) and their implications in bioremediation efficiency was studied by focusing on the ecology that drives bacterial communities in response to inoculation. AM strain draft genome codifies genes for metabolism of aromatic and aliphatic hydrocarbons. In Phe, the inoculation improved the elimination of phenanthrene during the whole treatment, whereas in IPK no improvement of degradation of any PAH was observed. Through the pyrosequencing analysis, we observed that inoculation managed to increase the richness and diversity in both contaminated microbiomes, therefore, independently of PAH degradation improvement, we observed clues of inoculant establishment, suggesting it may use other resources to survive. On the other hand, the inoculation did not influence the bacterial community of PS. On both contaminated microbiomes, incubation conditions produced a sharp increase on Actinomycetales and Sphingomonadales orders, while inoculation caused a relative decline of Actinomycetales. Inoculation of most diverse microbiomes, PS and Phe, produced a coupled increase of Sphingomonadales, Burkholderiales and Rhizobiales orders, although it may exist a synergy between those genera; our results suggest that this would not be directly related to PAH degradation.
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Affiliation(s)
- Sabrina Festa
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CINDEFI (UNLP, CCT-La Plata, CONICET), La Plata1900, Buenos Aires, Argentina
| | - Marianela Macchi
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CINDEFI (UNLP, CCT-La Plata, CONICET), La Plata1900, Buenos Aires, Argentina
| | - Federico Cortés
- Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Mar del Plata 7600, Argentina
| | - Irma S Morelli
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CINDEFI (UNLP, CCT-La Plata, CONICET), La Plata1900, Buenos Aires, Argentina Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, La Plata 1900, Argentina
| | - Bibiana M Coppotelli
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CINDEFI (UNLP, CCT-La Plata, CONICET), La Plata1900, Buenos Aires, Argentina
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46
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Ndlovu T, Khan S, Khan W. Distribution and diversity of biosurfactant-producing bacteria in a wastewater treatment plant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:9993-10004. [PMID: 26865483 DOI: 10.1007/s11356-016-6249-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 02/02/2016] [Indexed: 06/05/2023]
Abstract
The distribution and diversity of culturable biosurfactant-producing bacteria were investigated in a wastewater treatment plant (WWTP) using the Shannon and Simpson's indices. Twenty wastewater samples were analysed, and from 667 isolates obtained, 32 were classified as biosurfactant producers as they reduced the surface tension of the culture medium (71.1 mN/m), with the lowest value of 32.1 mN/m observed. Certain isolates also formed stable emulsions with diesel, kerosene and mineral oils. The 16S ribosomal RNA (rRNA) analysis classified the biosurfactant producers into the Aeromonadaceae, Bacillaceae, Enterobacteriaceae, Gordoniaceae and the Pseudomonadaceae families. In addition, numerous isolates carried the surfactin 4'-phosphopantetheinyl transferase (sfp), rhamnosyltransferase subunit B (rhlB) and bacillomycin C (bamC) genes involved in the biosynthesis of surfactin, rhamnolipid and bacillomycin, respectively. While, biosurfactant-producing bacteria were found at all sampling points in the WWTP, the Simpson's diversity (1 - D) and the Shannon-Weaver (H) indices revealed an increase in bacterial diversity in the influent samples (0.8356 and 2.08), followed by the effluent (0.8 and 1.6094) and then the biological trickling filter (0.7901 and 1.6770) samples. Numerous biosurfactant-producing bacteria belonging to diverse genera are thus present throughout a WWTP.
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Affiliation(s)
- Thando Ndlovu
- Department of Microbiology, Faculty of Science, Stellenbosch University, Private Bag X1, Stellenbosch, 7602, South Africa
| | - Sehaam Khan
- Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, PO Box 1906, Bellville, 7535, South Africa
| | - Wesaal Khan
- Department of Microbiology, Faculty of Science, Stellenbosch University, Private Bag X1, Stellenbosch, 7602, South Africa.
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47
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Mohanram R, Jagtap C, Kumar P. Isolation, screening, and characterization of surface-active agent-producing, oil-degrading marine bacteria of Mumbai Harbor. MARINE POLLUTION BULLETIN 2016; 105:131-138. [PMID: 26912197 DOI: 10.1016/j.marpolbul.2016.02.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 01/27/2016] [Accepted: 02/15/2016] [Indexed: 06/05/2023]
Abstract
Diverse marine bacterial species predominantly found in oil-polluted seawater produce diverse surface-active agents. Surface-active agents produced by bacteria are classified into two groups based on their molecular weights, namely biosurfactants and bioemulsifiers. In this study, surface-active agent-producing, oil-degrading marine bacteria were isolated using a modified Bushnell-Haas medium with high-speed diesel as a carbon source from three oil-polluted sites of Mumbai Harbor. Surface-active agent-producing bacterial strains were screened using nine widely used methods. The nineteen bacterial strains showed positive results for more than four surface-active agent screening methods; further, these strains were characterized using biochemical and nucleic acid sequencing methods. Based on the results, the organisms belonged to the genera Acinetobacter, Alcanivorax, Bacillus, Comamonas, Chryseomicrobium, Halomonas, Marinobacter, Nesterenkonia, Pseudomonas, and Serratia. The present study confirmed the prevalence of surface-active agent-producing bacteria in the oil-polluted waters of Mumbai Harbor.
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Affiliation(s)
- Rajamani Mohanram
- Department of Marine Biotechnology, Naval Materials Research Laboratory, Defence Research and Development Organisation, Ministry of Defence, Government of India, Shil Badlapur Road, Anandnagar-Post, Additional Ambernath-East, Thane District, 421 506, Maharashtra, India.
| | - Chandrakant Jagtap
- Department of Marine Biotechnology, Naval Materials Research Laboratory, Defence Research and Development Organisation, Ministry of Defence, Government of India, Shil Badlapur Road, Anandnagar-Post, Additional Ambernath-East, Thane District, 421 506, Maharashtra, India.
| | - Pradeep Kumar
- Department of Marine Biotechnology, Naval Materials Research Laboratory, Defence Research and Development Organisation, Ministry of Defence, Government of India, Shil Badlapur Road, Anandnagar-Post, Additional Ambernath-East, Thane District, 421 506, Maharashtra, India.
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48
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Liu Z, Wang X, Gao M, Song J, Huang L, Liu J, Liu X, Xu W, Zhao D. Unpowered oil absorption by a wettability sponge based oil skimmer. RSC Adv 2016. [DOI: 10.1039/c6ra19571g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Superhydrophobic–superoleophilic sponges equipped on oil skimmers are obtained after being immersed in a copper stearate solution.
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Affiliation(s)
- Ziai Liu
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education
- Dalian University of Technology
- Dalian 116024
- China
| | - Xuyue Wang
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education
- Dalian University of Technology
- Dalian 116024
- China
| | - Mingqian Gao
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education
- Dalian University of Technology
- Dalian 116024
- China
| | - Jinlong Song
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education
- Dalian University of Technology
- Dalian 116024
- China
| | - Liu Huang
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education
- Dalian University of Technology
- Dalian 116024
- China
| | - Jiyu Liu
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education
- Dalian University of Technology
- Dalian 116024
- China
| | - Xin Liu
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education
- Dalian University of Technology
- Dalian 116024
- China
| | - Wei Xu
- School of Mechanics and Civil Engineering
- China University of Mining and Technology (Beijing)
- 100083
- China
| | - Danyang Zhao
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education
- Dalian University of Technology
- Dalian 116024
- China
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49
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Sacco LP, Castellane TCL, Lopes EM, de Macedo Lemos EG, Alves LMC. Properties of Polyhydroxyalkanoate Granules and Bioemulsifiers from Pseudomonas sp. and Burkholderia sp. Isolates Growing on Glucose. Appl Biochem Biotechnol 2015; 178:990-1001. [PMID: 26578147 DOI: 10.1007/s12010-015-1923-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 11/08/2015] [Indexed: 11/25/2022]
Abstract
A Burkholderia and Pseudomonas species designated as AB4 and AS1, respectively, were isolated from soil containing decomposing straw or sugar cane bagasse collected from Brazil. This study sought to evaluate the capacities of culture media, cell-free medium, and crude lysate preparations (containing PHB inclusion bodies) from bacterial cell cultures to stabilize emulsions with several hydrophobic compounds. Four conditions showed good production of bioemulsifiers (E24 ≥ 50 %), headed by substantially cell-free media from bacterial cell cultures in which bacterial isolates from Burkholderia sp. strain AB4 and Pseudomonas sp. strain AS1 were grown. Our results revealed that the both isolates (AB4 and AS1 strains) exhibited high emulsification indices (indicating usefulness in bioremediation) and good stabilities.
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Affiliation(s)
- Laís Postai Sacco
- Departamento de Tecnologia, Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Rod. Prof. Paulo Donato Castellane km 5, CEP 14884-900, Jaboticabal, SP, Brazil
| | - Tereza Cristina Luque Castellane
- Departamento de Tecnologia, Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Rod. Prof. Paulo Donato Castellane km 5, CEP 14884-900, Jaboticabal, SP, Brazil.
| | - Erica Mendes Lopes
- Departamento de Tecnologia, Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Rod. Prof. Paulo Donato Castellane km 5, CEP 14884-900, Jaboticabal, SP, Brazil
| | - Eliana Gertrudes de Macedo Lemos
- Departamento de Tecnologia, Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Rod. Prof. Paulo Donato Castellane km 5, CEP 14884-900, Jaboticabal, SP, Brazil
| | - Lúcia Maria Carareto Alves
- Departamento de Tecnologia, Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Rod. Prof. Paulo Donato Castellane km 5, CEP 14884-900, Jaboticabal, SP, Brazil.
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Effect of particle agglomeration in nanotoxicology. Arch Toxicol 2015; 89:659-75. [PMID: 25618546 DOI: 10.1007/s00204-015-1460-6] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 01/08/2015] [Indexed: 12/27/2022]
Abstract
The emission of engineered nanoparticles (ENPs) into the environment in increasing quantity and variety raises a general concern regarding potential effects on human health. Compared with soluble substances, ENPs exhibit additional dimensions of complexity, that is, they exist not only in various sizes, shapes and chemical compositions but also in different degrees of agglomeration. The effect of the latter is the topic of this review in which we explore and discuss the role of agglomeration on toxicity, including the fate of nanomaterials after their release and the biological effects they may induce. In-depth investigations of the effect of ENP agglomeration on human health are still rare, but it may be stated that outside the body ENP agglomeration greatly reduces human exposure. After uptake, agglomeration of ENPs reduces translocation across primary barriers such as lungs, skin or the gastrointestinal tract, preventing exposure of "secondary" organs. In analogy, also cellular ENP uptake and intracellular distribution are affected by agglomeration. However, agglomeration may represent a risk factor if it occurs after translocation across the primary barriers, and ENPs are able to accumulate within the tissue and thus reduce clearance efficiency.
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