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Patowary K, Patowary R, Kalita MC, Deka S. Characterization of Biosurfactant Produced during Degradation of Hydrocarbons Using Crude Oil As Sole Source of Carbon. Front Microbiol 2017; 8:279. [PMID: 28275373 PMCID: PMC5319985 DOI: 10.3389/fmicb.2017.00279] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 02/09/2017] [Indexed: 11/24/2022] Open
Abstract
Production and spillage of petroleum hydrocarbons which is the most versatile energy resource causes disastrous environmental pollution. Elevated oil degrading performance from microorganisms is demanded for successful microbial remediation of those toxic pollutants. The employment of biosurfactant-producing and hydrocarbon-utilizing microbes enhances the effectiveness of bioremediation as biosurfactant plays a key role by making hydrocarbons bio-available for degradation. The present study aimed the isolation of a potent biosurfactant producing indigenous bacteria which can be employed for crude oil remediation, along with the characterization of the biosurfactant produced during crude oil biodegradation. A potent bacterial strain Pseudomonas aeruginosa PG1 (identified by 16s rDNA sequencing) was isolated from hydrocarbon contaminated soil that could efficiently produce biosurfactant by utilizing crude oil components as the carbon source, thereby leading to the enhanced degradation of the petroleum hydrocarbons. Strain PG1 could degrade 81.8% of total petroleum hydrocarbons (TPH) after 5 weeks of culture when grown in mineral salt media (MSM) supplemented with 2% (v/v) crude oil as the sole carbon source. GCMS analysis of the treated crude oil samples revealed that P. aeruginosa PG1 could potentially degrade various hydrocarbon contents including various PAHs present in the crude oil. Biosurfactant produced by strain PG1 in the course of crude oil degradation, promotes the reduction of surface tension (ST) of the culture medium from 51.8 to 29.6 mN m−1, with the critical micelle concentration (CMC) of 56 mg L−1. FTIR, LC-MS, and SEM-EDS studies revealed that the biosurfactant is a rhamnolipid comprising of both mono and di rhamnolipid congeners. The biosurfactant did not exhibit any cytotoxic effect to mouse L292 fibroblastic cell line, however, strong antibiotic activity against some pathogenic bacteria and fungus was observed.
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Affiliation(s)
- Kaustuvmani Patowary
- Environmental Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology Guwahati, India
| | - Rupshikha Patowary
- Environmental Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology Guwahati, India
| | - Mohan C Kalita
- Department of Biotechnology, Gauhati University Guwahati, India
| | - Suresh Deka
- Environmental Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology Guwahati, India
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Liu Y, Zeng G, Zhong H, Wang Z, Liu Z, Cheng M, Liu G, Yang X, Liu S. Effect of rhamnolipid solubilization on hexadecane bioavailability: enhancement or reduction? JOURNAL OF HAZARDOUS MATERIALS 2017; 322:394-401. [PMID: 27773441 DOI: 10.1016/j.jhazmat.2016.10.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 09/28/2016] [Accepted: 10/13/2016] [Indexed: 06/06/2023]
Abstract
In this study, liquid culture systems containing rhamnolipid-solubilized, separate-phase, and multi-state hexadecane as the carbon source were employed for examining the effect of rhamnolipid solubilization on the bioavailability of hexadecane. Experimental results showed that the uptake of rhamnolipid-solubilized hexadecane by Pseudomonas aeruginosa ATCC 9027, a rhamnolipid producing strain, was enhanced compared to the uptake of mass hexadecane as a separate phase, indicating rhamnolipid solubilization increased the bioavailability of hexadecane for this bacterium. For Pseudomonas putida CICC 20575 which does not produce but degrade rhamnolipid, the uptake of either rhamnolipid-solubilized hexadecane or multi-state hexadecane was inhibited. The reduction of bioavailability was assumed to be the consequence of the blocking effect caused by the partition of rhamnolipid molecules at the hexadecane-water interface. The results show that how rhamnolipid solubilization changes the bioavailability of hexadecane depends on the bacterial compatibility to rhamnolipid. The study adds insight into the knowledge of biosurfactant-associated bioavailability of hydrophobic organic compounds (HOCs), and is of importance for application of biosurfactants in bioremediation of HOCs.
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Affiliation(s)
- Yang Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China.
| | - Hua Zhong
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China; State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei 430072, China.
| | - Zhiquan Wang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Zhifeng Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Min Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Guansheng Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Xin Yang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Shaoheng Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
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Cai Q, Zhang B, Chen B, Zhu Z, Zhao Y. A novel bioemulsifier produced by Exiguobacterium sp. strain N4-1P isolated from petroleum hydrocarbon contaminated coastal sediment. RSC Adv 2017. [DOI: 10.1039/c7ra07411e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study,ExiguobacteriumN4-1P is reported as a bioemulsifier producer for the first time.
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Affiliation(s)
- Qinhong Cai
- Faculty of Engineering and Applied Science
- Memorial University of Newfoundland
- St. John's
- Canada A1B 3X5
| | - Baiyu Zhang
- Faculty of Engineering and Applied Science
- Memorial University of Newfoundland
- St. John's
- Canada A1B 3X5
| | - Bing Chen
- Faculty of Engineering and Applied Science
- Memorial University of Newfoundland
- St. John's
- Canada A1B 3X5
| | - Zhiwen Zhu
- Faculty of Engineering and Applied Science
- Memorial University of Newfoundland
- St. John's
- Canada A1B 3X5
| | - Yuming Zhao
- Department of Chemistry
- Memorial University of Newfoundland
- St. John's
- Canada A1B 3X5
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Gkorezis P, Daghio M, Franzetti A, Van Hamme JD, Sillen W, Vangronsveld J. The Interaction between Plants and Bacteria in the Remediation of Petroleum Hydrocarbons: An Environmental Perspective. Front Microbiol 2016; 7:1836. [PMID: 27917161 PMCID: PMC5116465 DOI: 10.3389/fmicb.2016.01836] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 11/01/2016] [Indexed: 11/24/2022] Open
Abstract
Widespread pollution of terrestrial ecosystems with petroleum hydrocarbons (PHCs) has generated a need for remediation and, given that many PHCs are biodegradable, bio- and phyto-remediation are often viable approaches for active and passive remediation. This review focuses on phytoremediation with particular interest on the interactions between and use of plant-associated bacteria to restore PHC polluted sites. Plant-associated bacteria include endophytic, phyllospheric, and rhizospheric bacteria, and cooperation between these bacteria and their host plants allows for greater plant survivability and treatment outcomes in contaminated sites. Bacterially driven PHC bioremediation is attributed to the presence of diverse suites of metabolic genes for aliphatic and aromatic hydrocarbons, along with a broader suite of physiological properties including biosurfactant production, biofilm formation, chemotaxis to hydrocarbons, and flexibility in cell-surface hydrophobicity. In soils impacted by PHC contamination, microbial bioremediation generally relies on the addition of high-energy electron acceptors (e.g., oxygen) and fertilization to supply limiting nutrients (e.g., nitrogen, phosphorous, potassium) in the face of excess PHC carbon. As an alternative, the addition of plants can greatly improve bioremediation rates and outcomes as plants provide microbial habitats, improve soil porosity (thereby increasing mass transfer of substrates and electron acceptors), and exchange limiting nutrients with their microbial counterparts. In return, plant-associated microorganisms improve plant growth by reducing soil toxicity through contaminant removal, producing plant growth promoting metabolites, liberating sequestered plant nutrients from soil, fixing nitrogen, and more generally establishing the foundations of soil nutrient cycling. In a practical and applied sense, the collective action of plants and their associated microorganisms is advantageous for remediation of PHC contaminated soil in terms of overall cost and success rates for in situ implementation in a diversity of environments. Mechanistically, there remain biological unknowns that present challenges for applying bio- and phyto-remediation technologies without having a deep prior understanding of individual target sites. In this review, evidence from traditional and modern omics technologies is discussed to provide a framework for plant-microbe interactions during PHC remediation. The potential for integrating multiple molecular and computational techniques to evaluate linkages between microbial communities, plant communities and ecosystem processes is explored with an eye on improving phytoremediation of PHC contaminated sites.
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Affiliation(s)
- Panagiotis Gkorezis
- Environmental Biology, Centre for Environmental Sciences, Hasselt UniversityDiepenbeek, Belgium
| | - Matteo Daghio
- Department of Environmental Sciences, University of Milano-BicoccaMilano, Italy
- Department of Biological Sciences, Thompson Rivers University, KamloopsBC, Canada
| | - Andrea Franzetti
- Department of Environmental Sciences, University of Milano-BicoccaMilano, Italy
| | | | - Wouter Sillen
- Environmental Biology, Centre for Environmental Sciences, Hasselt UniversityDiepenbeek, Belgium
| | - Jaco Vangronsveld
- Environmental Biology, Centre for Environmental Sciences, Hasselt UniversityDiepenbeek, Belgium
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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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Patowary K, Patowary R, Kalita MC, Deka S. Development of an Efficient Bacterial Consortium for the Potential Remediation of Hydrocarbons from Contaminated Sites. Front Microbiol 2016; 7:1092. [PMID: 27471499 PMCID: PMC4943938 DOI: 10.3389/fmicb.2016.01092] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 06/30/2016] [Indexed: 11/25/2022] Open
Abstract
The intrinsic biodegradability of hydrocarbons and the distribution of proficient degrading microorganisms in the environment are very crucial for the implementation of bioremediation practices. Among others, one of the most favorable methods that can enhance the effectiveness of bioremediation of hydrocarbon-contaminated environment is the application of biosurfactant producing microbes. In the present study, the biodegradation capacities of native bacterial consortia toward total petroleum hydrocarbons (TPH) with special emphasis to poly aromatic hydrocarbons were determined. The purpose of the study was to isolate TPH degrading bacterial strains from various petroleum contaminated soil of Assam, India and develop a robust bacterial consortium for bioremediation of crude oil of this native land. From a total of 23 bacterial isolates obtained from three different hydrocarbons contaminated samples five isolates, namely KS2, PG1, PG5, R1, and R2 were selected as efficient crude oil degraders with respect to their growth on crude oil enriched samples. Isolates KS2, PG1, and R2 are biosurfactant producers and PG5, R1 are non-producers. Fourteen different consortia were designed involving both biosurfactant producing and non-producing isolates. Consortium 10, which comprises two Bacillus strains namely, Bacillus pumilus KS2 and B. cereus R2 (identified by 16s rRNA sequencing) has shown the best result in the desired degradation of crude oil. The consortium showed degradation up to 84.15% of TPH after 5 weeks of incubation, as revealed from gravimetric analysis. FTIR (Fourier transform infrared) and GCMS (Gas chromatography-mass spectrometer) analyses were correlated with gravimetric data which reveals that the consortium has removed a wide range of petroleum hydrocarbons in comparison with abiotic control including different aliphatic and aromatic hydrocarbons.
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Affiliation(s)
- Kaustuvmani Patowary
- Environmental Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology Guwahati, India
| | - Rupshikha Patowary
- Environmental Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology Guwahati, India
| | - Mohan C Kalita
- Department of Biotechnology, Gauhati University Guwahati, India
| | - Suresh Deka
- Environmental Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology Guwahati, India
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Benyahia F, Embaby AS. Bioremediation of Crude Oil Contaminated Desert Soil: Effect of Biostimulation, Bioaugmentation and Bioavailability in Biopile Treatment Systems. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:219. [PMID: 26891314 PMCID: PMC4772239 DOI: 10.3390/ijerph13020219] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 02/06/2016] [Accepted: 02/06/2016] [Indexed: 11/24/2022]
Abstract
This work was aimed at evaluating the relative merits of bioaugmentation, biostimulation and surfactant-enhanced bioavailability of a desert soil contaminated by crude oil through biopile treatment. The results show that the desert soil required bioaugmentation and biostimulation for bioremediation of crude oil. The bioaugmented biopile system led to a total petroleum hydrocarbon (TPH) reduction of 77% over 156 days while the system with polyoxyethylene (20) sorbitan monooleate (Tween 80) gave a 56% decrease in TPH. The biostimulated system with indigenous micro-organisms gave 23% reduction in TPH. The control system gave 4% TPH reduction. The addition of Tween 80 led to a respiration rate that peaked in 48 days compared to 88 days for the bioaugmented system and respiration declined rapidly due to nitrogen depletion. The residual hydrocarbon in the biopile systems studied contained polyaromatics (PAH) in quantities that may be considered as hazardous. Nitrogen was found to be a limiting nutrient in desert soil bioremediation.
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Affiliation(s)
- Farid Benyahia
- Department of Chemical Engineering, Qatar University, Doha 2713, Qatar.
| | - Ahmed Shams Embaby
- Chemical Engineering Department, College of Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates.
- Worley-Parsons Environment, Kuwait City 9912, Kuwait.
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58
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Shahzad A, Siddiqui S, Bano A. Rhizoremediation of petroleum hydrocarbon, prospects and future. RSC Adv 2016. [DOI: 10.1039/c6ra12458e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Oil refineries generate several tones of oily waste which is dumped in an open pit within the vicinity of oil field.
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Affiliation(s)
- Asim Shahzad
- Mohi-Ud-Din Islamic University
- Pakistan
- Department of Bio Sciences
- University of Wah
- Wah Cannt
| | - Samina Siddiqui
- National Center for Excellence in Geology
- University of Peshawar
- Pakistan
| | - Asghari Bano
- Department of Bio Sciences
- University of Wah
- Wah Cannt
- Pakistan
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59
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Mnif I, Mnif S, Sahnoun R, Maktouf S, Ayedi Y, Ellouze-Chaabouni S, Ghribi D. Biodegradation of diesel oil by a novel microbial consortium: comparison between co-inoculation with biosurfactant-producing strain and exogenously added biosurfactants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:14852-61. [PMID: 25994261 DOI: 10.1007/s11356-015-4488-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 04/02/2015] [Indexed: 05/21/2023]
Abstract
Bioremediation, involving the use of microorganisms to detoxify or remove pollutants, is the most interesting strategy for hydrocarbon remediation. In this aim, four hydrocarbon-degrading bacteria were isolated from oil-contaminated soil in Tunisia. They were identified by the 16S rDNA sequence analysis, as Lysinibacillus bronitolerans RI18 (KF964487), Bacillus thuringiensis RI16 (KM111604), Bacillus weihenstephanensis RI12 (KM094930), and Acinetobacter radioresistens RI7 (KJ829530). Moreover, a lipopeptide biosurfactant produced by Bacillus subtilis SPB1, confirmed to increase diesel solubility, was tested to increase diesel biodegradation along with co-inoculation with two biosurfactant-producing strains. Culture studies revealed the enhancement of diesel biodegradation by the selected consortium with the addition of SPB1 lipopeptide and in the cases of co-inoculation by biosurfactant-producing strain. In fact, an improvement of about 38.42 and 49.65 % of diesel degradation was registered in the presence of 0.1 % lipopeptide biosurfactant and when culturing B. subtilis SPB1 strain with the isolated consortium, respectively. Furthermore, the best improvement, evaluated to about 55.4 %, was recorded when using the consortium cultured with B. subtilis SPB1 and A. radioresistens RI7 strains. Gas chromatography analyses were correlated with the gravimetric evaluation of the residual hydrocarbons. Results suggested the potential applicability of the selected consortium along with the ex situ- and in situ-added biosurfactant for the effective bioremediation of diesel-contaminated water and soil.
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Affiliation(s)
- Inès Mnif
- Unit " Enzymes et Bioconversion," National School of Engineers of Sfax, University of Sfax, ENIS, BP W, 3038, Sfax, Tunisia.
- Higher Institute of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia.
| | - Sami Mnif
- Center of Biotechnology of Sfax, Sfax, Tunisia
| | - Rihab Sahnoun
- Unit " Enzymes et Bioconversion," National School of Engineers of Sfax, University of Sfax, ENIS, BP W, 3038, Sfax, Tunisia
- Higher Institute of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia
| | - Sameh Maktouf
- Unit " Enzymes et Bioconversion," National School of Engineers of Sfax, University of Sfax, ENIS, BP W, 3038, Sfax, Tunisia
| | | | - Semia Ellouze-Chaabouni
- Unit " Enzymes et Bioconversion," National School of Engineers of Sfax, University of Sfax, ENIS, BP W, 3038, Sfax, Tunisia
| | - Dhouha Ghribi
- Unit " Enzymes et Bioconversion," National School of Engineers of Sfax, University of Sfax, ENIS, BP W, 3038, Sfax, Tunisia
- Higher Institute of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia
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Uzoigwe C, Burgess JG, Ennis CJ, Rahman PKSM. Bioemulsifiers are not biosurfactants and require different screening approaches. Front Microbiol 2015; 6:245. [PMID: 25904897 PMCID: PMC4387539 DOI: 10.3389/fmicb.2015.00245] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 03/13/2015] [Indexed: 11/13/2022] Open
Affiliation(s)
- Chibuzo Uzoigwe
- Technology Futures Institute, School of Science and Engineering, Teesside University Middlesbrough, UK
| | - J Grant Burgess
- School of Marine Science and Technology, Newcastle University Newcastle Upon Tyne, UK
| | - Christopher J Ennis
- Technology Futures Institute, School of Science and Engineering, Teesside University Middlesbrough, UK
| | - Pattanathu K S M Rahman
- Technology Futures Institute, School of Science and Engineering, Teesside University Middlesbrough, UK
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Silva-Castro GA, Uad I, Rodríguez-Calvo A, González-López J, Calvo C. Response of autochthonous microbiota of diesel polluted soils to land-farming treatments. ENVIRONMENTAL RESEARCH 2015; 137:49-58. [PMID: 25486545 DOI: 10.1016/j.envres.2014.11.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 10/31/2014] [Accepted: 11/03/2014] [Indexed: 06/04/2023]
Abstract
This study investigated the response of autochthonous microorganisms of diesel polluted soils to land-farming treatments. Inorganic NPK (nitrogen, phosphorous, and potassium) fertilizer and Ivey surfactant were applied alone or in combination as biostimulating agents. The study was carried out in experimental separated land-farming plots performed with two soils: a sandy clay soil with low biological activity and a sandy clay soil with higher biological activity, contaminated with two concentrations of diesel: 10,000 and 20,000mgkg(-1). Bacterial growth, dehydrogenase activity and CO2 production were the biological parameters evaluated. Non-metric multidimensional scaling analysis proved that moisture content showed a tendency related to microbial growth and that heterotrophic and degrading microorganisms had the best relationship. Initial biological activity of soil influenced the response with 11.1% of variability attributed to this parameter. Soils with low activity had higher degree of response to nutrient addition.
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Affiliation(s)
| | - Imane Uad
- Institute of Water Research, University of Granada, Spain
| | - Alfonso Rodríguez-Calvo
- Institute of Water Research, University of Granada, Spain; Department of Civil Engineering, University of Granada, Spain
| | - Jesús González-López
- Department of Microbiology, University of Granada, Spain; Institute of Water Research, University of Granada, Spain
| | - Concepción Calvo
- Department of Microbiology, University of Granada, Spain; Institute of Water Research, University of Granada, Spain.
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63
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Montagnolli RN, Lopes PRM, Bidoia ED. Assessing Bacillus subtilis biosurfactant effects on the biodegradation of petroleum products. ENVIRONMENTAL MONITORING AND ASSESSMENT 2015; 187:4116. [PMID: 25412888 DOI: 10.1007/s10661-014-4116-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 10/28/2014] [Indexed: 06/04/2023]
Abstract
Microbial pollutant removal capabilities can be determined and exploited to accomplish bioremediation of hydrocarbon-polluted environments. Thus, increasing knowledge on environmental behavior of different petroleum products can lead to better bioremediation strategies. Biodegradation can be enhanced by adding biosurfactants to hydrocarbon-degrading microorganism consortia. This work aimed to improve petroleum products biodegradation by using a biosurfactant produced by Bacillus subtilis. The produced biosurfactant was added to biodegradation assays containing crude oil, diesel, and kerosene. Biodegradation was monitored by a respirometric technique capable of evaluating CO₂ production in an aerobic simulated wastewater environment. The biosurfactant yielded optimal surface tension reduction (30.9 mN m(-1)) and emulsification results (46.90% with kerosene). Biodegradation successfully occurred and different profiles were observed for each substance. Precise mathematical modeling of biosurfactant effects on petroleum degradation profile was designed, hence allowing long-term kinetics prediction. Assays containing biosurfactant yielded a higher overall CO₂ output. Higher emulsification and an enhanced CO2 production dataset on assays containing biosurfactants was observed, especially in crude oil and kerosene.
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Affiliation(s)
- Renato Nallin Montagnolli
- Departamento de Bioquímica e Microbiologia, Instituto de Biociências, UNESP-Univ Estadual Paulista, Avenida 24 A, 1515-Bela Vista, 13506-900, Rio Claro, SP, Brazil
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Dellagnezze BM, de Sousa GV, Martins LL, Domingos DF, Limache EEG, de Vasconcellos SP, da Cruz GF, de Oliveira VM. Bioremediation potential of microorganisms derived from petroleum reservoirs. MARINE POLLUTION BULLETIN 2014; 89:191-200. [PMID: 25457810 DOI: 10.1016/j.marpolbul.2014.10.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 10/03/2014] [Accepted: 10/04/2014] [Indexed: 06/04/2023]
Abstract
Bacterial strains and metagenomic clones, both obtained from petroleum reservoirs, were evaluated for petroleum degradation abilities either individually or in pools using seawater microcosms for 21 days. Gas Chromatography-Flame Ionization Detector (GC-FID) and Gas Chromatography-Mass Spectrometry (GC-MS) analyses were carried out to evaluate crude oil degradation. The results showed that metagenomic clones 1A and 2B were able to biodegrade n-alkanes (C14 to C33) and isoprenoids (phytane and pristane), with rates ranging from 31% to 47%, respectively. The bacteria Dietzia maris CBMAI 705 and Micrococcus sp. CBMAI 636 showed higher rates reaching 99% after 21 days. The metagenomic clone pool biodegraded these compounds at rates ranging from 11% to 45%. Regarding aromatic compound biodegradation, metagenomic clones 2B and 10A were able to biodegrade up to 94% of phenanthrene and methylphenanthrenes (3-MP, 2-MP, 9-MP and 1-MP) with rates ranging from 55% to 70% after 21 days, while the bacteria Dietzia maris CBMAI 705 and Micrococcus sp. CBMAI 636 were able to biodegrade 63% and up to 99% of phenanthrene, respectively, and methylphenanthrenes (3-MP, 2-MP, 9-MP and 1-MP) with rates ranging from 23% to 99% after 21 days. In this work, isolated strains as well as metagenomic clones were capable of degrading several petroleum compounds, revealing an innovative strategy and a great potential for further biotechnological and bioremediation applications.
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Affiliation(s)
- Bruna Martins Dellagnezze
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas - UNICAMP, CEP 13148-218, Paulinia, Brazil
| | - Gabriel Vasconcelos de Sousa
- Laboratory of Engineering and Petroleum Exploration, Darcy Ribeiro North Fluminense State University - LENEP/UENF, POB 119562, 27910-970 Macaé, RJ, Brazil
| | - Laercio Lopes Martins
- Laboratory of Engineering and Petroleum Exploration, Darcy Ribeiro North Fluminense State University - LENEP/UENF, POB 119562, 27910-970 Macaé, RJ, Brazil
| | - Daniela Ferreira Domingos
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas - UNICAMP, CEP 13148-218, Paulinia, Brazil
| | - Elmer E G Limache
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas - UNICAMP, CEP 13148-218, Paulinia, Brazil
| | | | - Georgiana Feitosa da Cruz
- Laboratory of Engineering and Petroleum Exploration, Darcy Ribeiro North Fluminense State University - LENEP/UENF, POB 119562, 27910-970 Macaé, RJ, Brazil
| | - Valéria Maia de Oliveira
- Microbial Resources Division, Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas - UNICAMP, CEP 13148-218, Paulinia, Brazil.
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65
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Chakraborty J, Chakrabarti S, Das S. Characterization and antimicrobial properties of lipopeptide biosurfactants produced by Bacillus subtilis SJ301 and Bacillus vallismortis JB201. APPL BIOCHEM MICRO+ 2014. [DOI: 10.1134/s0003683814060039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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66
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Bhattacharya M, Biswas D, Sana S, Datta S. Utilization of waste engine oil by Ochrobactrum pseudintermedium strain C1 that secretes an exopolysaccharide as a bioemulsifier. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2014. [DOI: 10.1016/j.bcab.2014.09.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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67
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Ganesh Kumar A, Vijayakumar L, Joshi G, Magesh Peter D, Dharani G, Kirubagaran R. Biodegradation of complex hydrocarbons in spent engine oil by novel bacterial consortium isolated from deep sea sediment. BIORESOURCE TECHNOLOGY 2014; 170:556-564. [PMID: 25171211 DOI: 10.1016/j.biortech.2014.08.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 08/01/2014] [Accepted: 08/03/2014] [Indexed: 05/20/2023]
Abstract
Complex hydrocarbon and aromatic compounds degrading marine bacterial strains were isolated from deep sea sediment after enrichment on spent engine (SE) oil. Phenotypic characterization and phylogenetic analysis of 16S rRNA gene sequences showed the isolates were related to members of the Pseudoalteromonas sp., Ruegeria sp., Exiguobacterium sp. and Acinetobacter sp. Biodegradation using 1% (v/v) SE oil with individual and mixed strains showed the efficacy of SE oil utilization within a short retention time. The addition of non-ionic surfactant 0.05% (v/v) Tween 80 as emulsifying agent enhanced the solubility of hydrocarbons and renders them more accessible for biodegradation. The degradation of several compounds and the metabolites formed during the microbial oxidation process were confirmed by Fourier transform infrared spectroscopy and Gas chromatography-mass spectrometry analyses. The potential of this consortium to biodegrade SE oil with and without emulsifying agent provides possible application in bioremediation of oil contaminated marine environment.
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Affiliation(s)
- A Ganesh Kumar
- Marine Biotechnology Division, Ocean Science and Technology for Islands Group, ESSO - National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Pallikaranai, Chennai 600100, India
| | - Lakshmi Vijayakumar
- Marine Biotechnology Division, Ocean Science and Technology for Islands Group, ESSO - National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Pallikaranai, Chennai 600100, India
| | - Gajendra Joshi
- Marine Biotechnology Division, Ocean Science and Technology for Islands Group, ESSO - National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Pallikaranai, Chennai 600100, India
| | - D Magesh Peter
- Marine Biotechnology Division, Ocean Science and Technology for Islands Group, ESSO - National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Pallikaranai, Chennai 600100, India
| | - G Dharani
- Marine Biotechnology Division, Ocean Science and Technology for Islands Group, ESSO - National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Pallikaranai, Chennai 600100, India
| | - R Kirubagaran
- Marine Biotechnology Division, Ocean Science and Technology for Islands Group, ESSO - National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Pallikaranai, Chennai 600100, India.
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68
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A systematic strain selection approach for halotolerant and halophilic bioprocess development: a review. Extremophiles 2014; 18:629-39. [DOI: 10.1007/s00792-014-0659-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 05/18/2014] [Indexed: 10/25/2022]
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69
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Rocha e Silva NMP, Rufino RD, Luna JM, Santos VA, Sarubbo LA. Screening of Pseudomonas species for biosurfactant production using low-cost substrates. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2014. [DOI: 10.1016/j.bcab.2013.09.005] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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70
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Nikolopoulou M, Pasadakis N, Norf H, Kalogerakis N. Enhanced ex situ bioremediation of crude oil contaminated beach sand by supplementation with nutrients and rhamnolipids. MARINE POLLUTION BULLETIN 2013; 77:37-44. [PMID: 24229785 DOI: 10.1016/j.marpolbul.2013.10.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Revised: 10/15/2013] [Accepted: 10/20/2013] [Indexed: 06/02/2023]
Abstract
Mediterranean coastal regions are particularly exposed to oil pollution due to extensive industrialization, urbanization and transport of crude and refined oil to and from refineries. Bioremediation of contaminated beach sand through landfarming is both simple and cost-effective to implement compared to other treatment technologies. The purpose of the present study was to investigate the effect of alternative nutrients on biodegradation of crude oil contaminated beach sand in an effort to reduce the time required for bioremediation employing only indigenous hydrocarbon degraders. A natural sandy soil was collected from Agios Onoufrios beach (Chania, Greece) and was contaminated with weathered crude oil. The indigenous microbial population in the contaminated sand was tested alone (control treatment) or in combination with inorganic nutrients (KNO3 and K2HPO4) to investigate their effects on oil biodegradation rates. In addition, the ability of biosurfactants (rhamnolipids), in the presence of organic nutrients (uric acid and lecithin), to further stimulate biodegradation was investigated in laboratory microcosms over a 45-day period. Biodegradation was tracked by GC/MS analysis of aliphatic and polycyclic aromatic hydrocarbons components and the measured concentrations were corrected for abiotic removal by hopane normalizations. It was found that the saturated fraction of the residual oil is degraded more extensively than the aromatic fraction and the bacterial growth after an incubation period of approximately 3 weeks was much greater from the bacterial growth in the control. The results show that the treatments with inorganic or organic nutrients are equally effective over almost 30 days where C12-C35n-alkanes were degraded more than 97% and polyaromatic hydrocarbons with two or three rings were degraded more than 95% within 45 days. The results clearly show that the addition of nutrients to contaminated beach sand significantly enhanced the activity of indigenous microorganisms, as well as the removal of total recoverable petroleum hydrocarbons (TRPH) over a 45-day study period.
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Affiliation(s)
- M Nikolopoulou
- School of Environmental Engineering, Technical University of Crete, Chania, Greece
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71
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Effect of unconventional carbon sources on biosurfactant production and its application in bioremediation. Int J Biol Macromol 2013; 62:52-8. [DOI: 10.1016/j.ijbiomac.2013.08.030] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 08/21/2013] [Accepted: 08/23/2013] [Indexed: 11/21/2022]
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72
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Hu G, Li J, Zeng G. Recent development in the treatment of oily sludge from petroleum industry: a review. JOURNAL OF HAZARDOUS MATERIALS 2013; 261:470-490. [PMID: 23978722 DOI: 10.1016/j.jhazmat.2013.07.069] [Citation(s) in RCA: 323] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 07/29/2013] [Indexed: 06/02/2023]
Abstract
Oily sludge is one of the most significant solid wastes generated in the petroleum industry. It is a complex emulsion of various petroleum hydrocarbons (PHCs), water, heavy metals, and solid particles. Due to its hazardous nature and increased generation quantities around the world, the effective treatment of oily sludge has attracted widespread attention. In this review, the origin, characteristics, and environmental impacts of oily sludge were introduced. Many methods have been investigated for dealing with PHCs in oily sludge either through oil recovery or sludge disposal, but little attention has been paid to handle its various heavy metals. These methods were discussed by dividing them into oil recovery and sludge disposal approaches. It was recognized that no single specific process can be considered as a panacea since each method is associated with different advantages and limitations. Future efforts should focus on the improvement of current technologies and the combination of oil recovery with sludge disposal in order to comply with both resource reuse recommendations and environmental regulations. The comprehensive examination of oily sludge treatment methods will help researchers and practitioners to have a good understanding of both recent developments and future research directions.
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Affiliation(s)
- Guangji Hu
- Environmental Engineering Program, University of Northern British Columbia, Prince George, British Columbia, Canada V2N 4Z9
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73
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Colin VL, Castro MF, Amoroso MJ, Villegas LB. Production of bioemulsifiers by Amycolatopsis tucumanensis DSM 45259 and their potential application in remediation technologies for soils contaminated with hexavalent chromium. JOURNAL OF HAZARDOUS MATERIALS 2013; 261:577-583. [PMID: 23994656 DOI: 10.1016/j.jhazmat.2013.08.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 07/22/2013] [Accepted: 08/01/2013] [Indexed: 06/02/2023]
Abstract
In recent years, increasing interest has been shown in the use of bioemulsifiers as washing agents that can enhance desorption of soil-bound metals. However, high production costs derived from the use of expensive substrates for formulation of the fermentation media represent the main challenge for full, large-scale implementation of bioemulsifiers. This work reports on a first study of bioemulsifier production by the actinobacterium Amycolatopsis tucumanensis DSM 45259 using different carbon and nitrogen sources. Preliminary results on the potential use of these compounds as washing agents for soils contaminated with Cu(II) and Cr(VI) are also presented. The best specific production was detected using glycerol and urea as carbon and nitrogen substrates, respectively. However, with all of the substrates used during the batch assay, the bioemulsifiers showed high levels of stability at extreme conditions of pH, temperature, and salt concentration. Under the current assay conditions, the bioemulsifiers were not effective in removing Cu(II) from soil. However, they were able to mediate Cr(VI) recovery, with the removal percentage doubled compared to that seen when using deionized water. These findings appear promising for the development of remediation technologies for hexavalent chromium compounds based upon direct use of these microbial emulsifiers.
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Affiliation(s)
- Verónica Leticia Colin
- Planta Piloto de Procesos Industriales y Microbiológicos (PROIMI), CONICET, Av. Belgrano y Pje. Caseros, 4000 Tucumán, Argentina; Universidad de San Pablo-Tucumán, Argentina.
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74
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Pelaez AI, Lores I, Sotres A, Mendez-Garcia C, Fernandez-Velarde C, Santos JA, Gallego JLR, Sanchez J. Design and field-scale implementation of an "on site" bioremediation treatment in PAH-polluted soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2013; 181:190-9. [PMID: 23867700 DOI: 10.1016/j.envpol.2013.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 06/10/2013] [Accepted: 06/16/2013] [Indexed: 05/15/2023]
Abstract
An "on site" bioremediation program was designed and implemented in soil polluted with polycyclic aromatic hydrocarbons (PAHs), especially naphthalene. We began by characterizing the soil's physical and chemical properties. A microbiological screening corroborated the presence of microorganisms capable of metabolizing PAHs. We then analyzed the viability of bioremediation by developing laboratory microcosms and pilot scale studies, to optimize the costs and time associated with remediation. The treatment assays were based on different types of biostimulants, such as a slow or fast-release fertilizer, combined with commercial surfactants. Once the feasibility of the biostimulation was confirmed, a real-scale bioremediation program was undertaken in 900 m(3) of contaminated soil. The three-step design reduced PAH contamination by 94.4% at the end of treatment (161 days). The decrease in pollutants was concomitant with the selection of autochthonous bacteria capable of degrading PAHs, with Bacillus and Pseudomonas the most abundant genera.
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Affiliation(s)
- A I Pelaez
- Environmental Biotechnology and Geochemistry Group, Instituto Universitario de Biotecnología de Asturias (IUBA), Universidad de Oviedo, C/Gonzalo Gutierrez Quirós s/n, 33600 Mieres, Asturias, Spain.
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75
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Campos JM, Montenegro Stamford TL, Sarubbo LA, de Luna JM, Rufino RD, Banat IM. Microbial biosurfactants as additives for food industries. Biotechnol Prog 2013; 29:1097-108. [DOI: 10.1002/btpr.1796] [Citation(s) in RCA: 162] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 08/06/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Jenyffer Medeiros Campos
- Dept. de Nutrição; Universidade Federal de Pernambuco, Programa de Pós-graduação em Nutrição, Av. Prof. Moraes Rego, 1235, Cidade Universitária; Recife CEP: 50670-901 PE Brazil
| | - Tânia Lúcia Montenegro Stamford
- Dept. de Nutrição; Universidade Federal de Pernambuco, Programa de Pós-graduação em Nutrição, Av. Prof. Moraes Rego, 1235, Cidade Universitária; Recife CEP: 50670-901 PE Brazil
| | - Leonie Asfora Sarubbo
- Centro de Ciências e Tecnologia, Universidade Católica de Pernambuco, Rua do Príncipe, 526; Boa Vista, Recife CEP: 50050-900 PE Brazil
| | - Juliana Moura de Luna
- Centro de Ciências e Tecnologia, Universidade Católica de Pernambuco, Rua do Príncipe, 526; Boa Vista, Recife CEP: 50050-900 PE Brazil
| | - Raquel Diniz Rufino
- Centro de Ciências e Tecnologia, Universidade Católica de Pernambuco, Rua do Príncipe, 526; Boa Vista, Recife CEP: 50050-900 PE Brazil
| | - Ibrahim M. Banat
- School of Biomedical Sciences; Faculty of Life and Health Sciences; University of Ulster; BT52 1SA Northern Ireland U.K
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76
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Silva-Castro GA, Rodelas B, Perucha C, Laguna J, González-López J, Calvo C. Bioremediation of diesel-polluted soil using biostimulation as post-treatment after oxidation with Fenton-like reagents: assays in a pilot plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 445-446:347-55. [PMID: 23354375 DOI: 10.1016/j.scitotenv.2012.12.081] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 12/21/2012] [Accepted: 12/25/2012] [Indexed: 05/20/2023]
Abstract
The present study focuses on the remediation of diesel-polluted soil using modified Fenton treatment coupled with inorganic NPK fertilizer ("Fenton+NPK"). Studies were carried out in a pilot plant containing 1 m(3) of sandy soil contaminated with 20,000 mg kg(-1) of diesel, placed outdoors at a temperature ranging between 5 and 10 °C. Results showed that NPK-fertilizer as post-treatment stimulated culturable degrading bacteria and enhanced dehydrogenase activity. Fenton+NPK treatment increased total petroleum hydrocarbon (TPH) removal efficacy. Natural attenuation removed 49% of TPH in the surface layer, 23% of TPH in the non-saturated layer and 4% of the TPH in the saturated layer, while the percentage removed of TPH after Fenton+NPK treatment was 58%, 57% and 32% respectively. The results from our study showed that, immediately after soil contamination, occurred a specialization and differentiation of the bacterial community, but after this initial modification, no significant changes of bacterial diversity was observed under natural attenuation conditions. In contrast, when the Fenton's reagent was applied a reduction of the bacterial biodiversity was observed. However, the post-biostimulation did enhance the degrading microbiota and stimulated their degrading biological activity. In conclusion, biostimulation, as a post-treatment step in chemical oxidation, is an effective solution to remediate hydrocarbon-polluted sites.
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Affiliation(s)
- Gloria Andrea Silva-Castro
- Department of Microbiology, Institute of Water Research, University of Granada, Spain, C/Ramón y Cajal no 4, 18071 Granada, Spain.
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77
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Colin VL, Pereira CE, Villegas LB, Amoroso MJ, Abate CM. Production and partial characterization of bioemulsifier from a chromium-resistant actinobacteria. CHEMOSPHERE 2013; 90:1372-1378. [PMID: 22985590 DOI: 10.1016/j.chemosphere.2012.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 08/03/2012] [Accepted: 08/05/2012] [Indexed: 06/01/2023]
Abstract
Surface-active compounds such as synthetic emulsifiers have been used for several decades, both for the degradation of hydrocarbons and increasing desorption of soil-bound metals. However, due to their high toxicity, low degradability, and production costs unaffordable for use in larger ecosystems, synthetic emulsifiers have been gradually replaced by those derived from natural sources such as plants or microbes. In previous studies, the bacterium Streptomyces sp. MC1 has shown the ability to reduce and/or accumulate Cr(VI), a highly promising advance in the development of methods for environmental clean-up of sites contaminated with chromium. Here, new studies on the production of emulsifier from this strain are presented. The cultivation factors that have a significant influence on emulsifier biosynthesis, as well as the interactions among them, were studied by factorial design. Based upon optimization studies, maximum bioemulsifier production was detected in the culture medium having an initial pH of 8 with phosphate 2.0 g L(-1) and Ca(+2) 1.0 g L(-1) added, with an emulsification index about 3.5 times greater compared to the basal value. Interestingly, in the presence of 5.0 g L(-1) Cr(VI), Streptomyces sp. MC1 retained about 65% of its emulsifier production ability. Partially purified emulsifier presented high thermo-stability and partial water solubility. These findings could have promising future prospects for the remediation of organic- and metal-contaminated sites.
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Affiliation(s)
- Verónica Leticia Colin
- Planta Piloto de Procesos Industriales y Microbiológicos, CONICET, Av. Belgrano y Pje. Caseros, 4000 Tucumán, Argentina.
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78
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Jain RM, Mody K, Mishra A, Jha B. Physicochemical characterization of biosurfactant and its potential to remove oil from soil and cotton cloth. Carbohydr Polym 2012; 89:1110-6. [PMID: 24750921 DOI: 10.1016/j.carbpol.2012.03.077] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 03/20/2012] [Accepted: 03/25/2012] [Indexed: 10/28/2022]
Abstract
An alkaliphilic bacterium, Klebsiella sp. strain RJ-03, produced a biosurfactant, which showed low viscosity with pseudoplastic rheological behavior and exhibited emulsification activity with oils and hydrocarbons. The biosurfactant has excellent oil removing efficiency as compared to chemical surfactants. The isolated biosurfactant has compatibility with detergents and enhanced oil removing efficiency from soil and cotton cloths. It comprised of sugar, uronic acid, protein and sulfate. GC-MS analysis confirmed the presence of six monosaccharides (w/w), glucose (6.65%), galactose (23.98%), rhamnose (14.94%), mannose (17.54%), fucose (9.47%) and 6-O-Me-galactose (1.4%). It is a high molecular weight, thermostable biopolymer showing degradation above 300 °C. Positive ion reflector mode of MALDI TOF-TOF MS analysis revealed series of low and mid range mass peaks (m/z) corresponding to mono-, di-, tri- and oligo-saccharides content. The NMR, FT-IR, EDX-SEM, AFM and PSD analysis confirmed the presence of functional groups, bonds, elements and particle size respectively.
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Affiliation(s)
- Rakeshkumar M Jain
- Discipline of Marine Biotechnology and Ecology, CSIR - Central Salt and Marine Chemicals Research Institute (CSIR - CSMCRI), G.B. Marg, Bhavnagar, Gujarat 364002, India
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79
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Santala S, Karp M, Santala V. Monitoring alkane degradation by single BioBrick integration to an optimal cellular framework. ACS Synth Biol 2012; 1:60-4. [PMID: 23651046 DOI: 10.1021/sb2000066] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Synthetic biology enables rewiring and reconstruction of desirable biochemical routes using well-characterized BioBricks. One goal is to optimize these biological systems in terms of robustness, functionality, and simplicity. Thus, in addition to optimizing the molecular level of the metabolic network, choosing an optimal "chassis" can have a great significance in the constructed system. As an example, this study presents a simplified system for monitoring and studying long-chain n-alkane degradation in Acinetobacter baylyi ADP1 online, provided by a single BioBrick insertion, bacterial luciferase luxAB. The system exploits the natural alkane degradation machinery of ADP1 and a sensitive response of bacterial luciferase to a specific intermediate, providing important aspects to natural alkane degradation kinetics. The study suggests the monitoring system to be applicable in the field of environmental biotechnology and emphasizes the utility of ADP1 as a host in both model systems and applications.
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Affiliation(s)
- Suvi Santala
- Department of Chemistry and Bioengineering, Tampere University of Technology, Tampere, Finland
| | - Matti Karp
- Department of Chemistry and Bioengineering, Tampere University of Technology, Tampere, Finland
| | - Ville Santala
- Department of Chemistry and Bioengineering, Tampere University of Technology, Tampere, Finland
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80
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Jain RM, Mody K, Mishra A, Jha B. Isolation and structural characterization of biosurfactant produced by an alkaliphilic bacterium Cronobacter sakazakii isolated from oil contaminated wastewater. Carbohydr Polym 2012. [DOI: 10.1016/j.carbpol.2011.10.065] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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81
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Agarry SE, Ogunleye OO. Factorial Designs Application to Study Enhanced Bioremediation of Soil Artificially Contaminated with Weathered Bonny Light Crude Oil through Biostimulation and Bioaugmentation Strategy. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/jep.2012.38089] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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82
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Bao M, Chen Q, Gong Y, Li Y, Wang H, Jiang G. Removal efficiency of heavy oil by free and immobilised microorganisms on laboratory-scale. CAN J CHEM ENG 2011. [DOI: 10.1002/cjce.20688] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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83
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Evaluation antimicrobial and antiadhesive properties of the biosurfactant Lunasan produced by Candida sphaerica UCP 0995. Curr Microbiol 2011; 62:1527-34. [PMID: 21327556 DOI: 10.1007/s00284-011-9889-1] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2010] [Accepted: 01/21/2011] [Indexed: 12/16/2022]
Abstract
Different groups of biosurfactants exhibit diverse properties and display a variety of physiological functions in producer microorganisms; these include enhancing the solubility of hydrophobic/water-insoluble compound, heave metal binding, bacterial pathogenesis, cell adhesion and aggregation, quorum sensing and biofilm formation. Candida sphaerica was grown in a low cost medium, consisting of distilled water supplemented with 9% refinery residue of soybean oil and 9% corn steep liquor, for 144 h at 28°C and 150 rpm. The cell-free supernatant obtained at the end of the experiments was submitted to extraction, and afterward the biosurfactant was isolated using methanol with a yield of 9 g l(-1). The critical micelle concentration of the biosurfactant was found to be 0.25 mg ml(-1) with a surface tension of 25 mN m(-1). Several concentrations of the biosurfactant (0.625-10 mg ml(-1)) were used to evaluate its antimicrobial and antiadhesive activities against a variety of microorganisms. The biosurfactant showed antimicrobial activity against Streptococcus oralis (68%), Candida albicans (57%), and Staphylococcus epidermidis(57.6%) for the highest concentration tested. Furthermore, the biosurfactant at a concentration of 10 mg ml(-1) inhibited the adhesion between 80 and 92% of Pseudomonas aeruginosa, Streptococcus agalactiae, Streptococcus sanguis12. Inhibition of adhesion with percentages near 100% occurred for the higher concentrations of biosurfactant used. Results gathered in this study point to a potential use of the biosurfactant in biomedical applications.
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84
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Zahed MA, Aziz HA, Isa MH, Mohajeri L, Mohajeri S, Kutty SRM. Kinetic modeling and half life study on bioremediation of crude oil dispersed by Corexit 9500. JOURNAL OF HAZARDOUS MATERIALS 2011; 185:1027-1031. [PMID: 21041026 DOI: 10.1016/j.jhazmat.2010.10.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Revised: 10/03/2010] [Accepted: 10/04/2010] [Indexed: 05/30/2023]
Abstract
Hydrocarbon pollution in marine ecosystems occurs mainly by accidental oil spills, deliberate discharge of ballast waters from oil tankers and bilge waste discharges; causing site pollution and serious adverse effects on aquatic environments as well as human health. A large number of petroleum hydrocarbons are biodegradable, thus bioremediation has become an important method for the restoration of oil polluted areas. In this research, a series of natural attenuation, crude oil (CO) and dispersed crude oil (DCO) bioremediation experiments of artificially crude oil contaminated seawater was carried out. Bacterial consortiums were identified as Acinetobacter, Alcaligenes, Bacillus, Pseudomonas and Vibrio. First order kinetics described the biodegradation of crude oil. Under abiotic conditions, oil removal was 19.9% while a maximum of 31.8% total petroleum hydrocarbons (TPH) removal was obtained in natural attenuation experiment. All DCO bioreactors demonstrated higher and faster removal than CO bioreactors. Half life times were 28, 32, 38 and 58 days for DCO and 31, 40, 50 and 75 days for CO with oil concentrations of 100, 500, 1000 and 2000 mg/L, respectively. The effectiveness of Corexit 9500 dispersant was monitored in the 45 day study; the results indicated that it improved the crude oil biodegradation rate.
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Affiliation(s)
- Mohammad Ali Zahed
- School of Civil Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia
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85
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Pacwa-Płociniczak M, Płaza GA, Piotrowska-Seget Z, Cameotra SS. Environmental applications of biosurfactants: recent advances. Int J Mol Sci 2011; 12:633-54. [PMID: 21340005 PMCID: PMC3039971 DOI: 10.3390/ijms12010633] [Citation(s) in RCA: 383] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 12/08/2010] [Accepted: 01/10/2011] [Indexed: 11/16/2022] Open
Abstract
Increasing public awareness of environmental pollution influences the search and development of technologies that help in clean up of organic and inorganic contaminants such as hydrocarbons and metals. An alternative and eco-friendly method of remediation technology of environments contaminated with these pollutants is the use of biosurfactants and biosurfactant-producing microorganisms. The diversity of biosurfactants makes them an attractive group of compounds for potential use in a wide variety of industrial and biotechnological applications. The purpose of this review is to provide a comprehensive overview of advances in the applications of biosurfactants and biosurfactant-producing microorganisms in hydrocarbon and metal remediation technologies.
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Affiliation(s)
- Magdalena Pacwa-Płociniczak
- Department of Microbiology, Silesian University, Jagiellońska 28 street, 40-032 Katowice, Poland; E-Mails: (M.P.-P.); (Z.P.-S.)
| | - Grażyna A. Płaza
- Department of Environmental Microbiology, Institute for Ecology of Industrial Areas, Kossutha 6 street, 40-844 Katowice, Poland
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +48-322546031(246); Fax: +48-322541717
| | - Zofia Piotrowska-Seget
- Department of Microbiology, Silesian University, Jagiellońska 28 street, 40-032 Katowice, Poland; E-Mails: (M.P.-P.); (Z.P.-S.)
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86
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Zhu H, Aitken MD. Surfactant-enhanced desorption and biodegradation of polycyclic aromatic hydrocarbons in contaminated soil. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2010; 44:7260-5. [PMID: 20586488 PMCID: PMC2947565 DOI: 10.1021/es100112a] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
We evaluated two nonionic surfactants, one hydrophobic (Brij 30) and one hydrophilic (C(12)E(8)), for their ability to enhance the biodegradation of polycyclic aromatic hydrocarbons (PAHs) in contaminated soil after it had been treated in an aerobic bioreactor. The effects of each surfactant were evaluated at doses corresponding to equilibrium aqueous-phase concentrations well above the surfactant's critical micelle concentration (CMC), slightly above the CMC, and below the CMC. The concentrations of all 3- and 4-ring PAHs were significantly lower in the soil amended with Brij 30 at the two lower doses compared to controls, whereas removal of only the 3-ring PAHs was significantly enhanced at the highest Brij 30 dose. In contrast, C(12)E(8) did not enhance PAH removal at any dose. In the absence of surfactant, <5% of any PAH desorbed from the soil over an 18 day period. Brij 30 addition at the lowest dose significantly increased the desorption of most PAHs, whereas the addition of C(12)E(8) at the lowest dose actually decreased the desorption of all PAHs. These findings suggest that the effects of the two surfactants on PAH biodegradation could be explained by their effects on PAH bioavailability. Overall, this study demonstrates that the properties of the surfactant and its dose relative to the corresponding aqueous-phase concentration are important factors in designing systems for surfactant-enhanced bioremediation of PAH-contaminated soils in which PAH bioavailability is limited.
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87
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Lotfabad TB, Abassi H, Ahmadkhaniha R, Roostaazad R, Masoomi F, Zahiri HS, Ahmadian G, Vali H, Noghabi KA. Structural characterization of a rhamnolipid-type biosurfactant produced by Pseudomonas aeruginosa MR01: enhancement of di-rhamnolipid proportion using gamma irradiation. Colloids Surf B Biointerfaces 2010; 81:397-405. [PMID: 20732795 DOI: 10.1016/j.colsurfb.2010.06.026] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2010] [Revised: 06/18/2010] [Accepted: 06/24/2010] [Indexed: 10/19/2022]
Abstract
We previously reported that MR01, an indigenous strain of Pseudomonas aeruginosa, was able to produce a rhamnolipid-type biosurfactant. Here, we attempted to define the structural properties of this natural product. The analysis of the extracted biosurfactant by thin-layer chromatography (TLC) revealed the presence of two compounds corresponding to those of authentic mono- and di-rhamnolipid. The identity of two structurally distinguished rhamnolipids was confirmed by 1H and 13C nuclear magnetic resonance (NMR) spectroscopy. Liquid chromatography/mass spectrometry (LC/MS) of extracted biosurfactant revealed up to seventeen different rhamnolipid congeners. Further quantification showed di-rhamnolipids as the major compound (77.2%), while monorhamnolipids comprising a smaller proportion (22.8%) of MR01 biosurfactant. Rha-Rha-C10-C10 was verified as the major component of the MR01 biosurfactant (35.93%). Cytotoxic activity of MR01 biosurfactant against human cancer Hela cells showed an excellent inhibitory effect of 5μg/ml. An isolated mutant strain (MR01-C) created by Gamma ray irradiation demonstrated more than one and a half-fold biosurfactant production and activity compared with the parent strain. Analysis of the biosurfactant produced by MR01-C showed the magnitude of di-rhamnolipids in the sample increased up to 88.6% (∼15% higher than control) and the quantity of Rha-Rha-C10-C10 increased to 52.08% (∼45% higher than control).
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Affiliation(s)
- Tayebe B Lotfabad
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
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88
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Bioemulsifier production by Aspergillus niger MYA 135: presumptive role of iron and phosphate on emulsifying ability. World J Microbiol Biotechnol 2010. [DOI: 10.1007/s11274-010-0409-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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89
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Mohajeri L, Aziz HA, Isa MH, Zahed MA. A statistical experiment design approach for optimizing biodegradation of weathered crude oil in coastal sediments. BIORESOURCE TECHNOLOGY 2010; 101:893-900. [PMID: 19773160 DOI: 10.1016/j.biortech.2009.09.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2009] [Revised: 09/01/2009] [Accepted: 09/03/2009] [Indexed: 05/11/2023]
Abstract
This work studied the bioremediation of weathered crude oil (WCO) in coastal sediment samples using central composite face centered design (CCFD) under response surface methodology (RSM). Initial oil concentration, biomass, nitrogen and phosphorus concentrations were used as independent variables (factors) and oil removal as dependent variable (response) in a 60 days trial. A statistically significant model for WCO removal was obtained. The coefficient of determination (R(2)=0.9732) and probability value (P<0.0001) demonstrated significance for the regression model. Numerical optimization based on desirability function were carried out for initial oil concentration of 2, 16 and 30 g per kg sediment and 83.13, 78.06 and 69.92 per cent removal were observed respectively, compare to 77.13, 74.17 and 69.87 per cent removal for un-optimized results.
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Affiliation(s)
- Leila Mohajeri
- School of Civil Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia
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90
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Exopolysaccharide produced by Gordonia polyisoprenivorans CCT 7137 in GYM commercial medium and sugarcane molasses alternative medium: FT-IR study and emulsifying activity. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2009.08.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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