1
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Preethi PS, Suganya M, Narenkumar J, AlSalhi MS, Devanesan S, Nanthini AUR, Kamalakannan S, Rajasekar A. Macrolepiota-mediated synthesized silver nanoparticles as a green corrosive inhibitor for mild steel in re-circulating cooling water system. Bioprocess Biosyst Eng 2022; 45:493-501. [PMID: 34981182 DOI: 10.1007/s00449-021-02673-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/24/2021] [Indexed: 11/25/2022]
Abstract
A simple, cost effective and eco-friendly silver nanoparticle (AgNPs) was synthesized by wild edible Macrolepiota mushroom. Nanoparticles were characterized by UV-visible, FTIR, XRD analysis and TEM analysis. The characterized studies confirmed the spherical shape of AgNPs with 20-50 nm size. Biocorrosion efficacy of myco-synthesized AgNPs and the mushroom extract were tested against mild steel by corrosive bacteria Bacillus thuringiensis EN2, Terribacillus aidingensis EN3 and Bacillus oleronius EN9. Weight loss analysis, EIS, and surface analysis were used to evaluate the corrosion inhibition efficiency of mild steel in various experimental systems. Reduced corrosion rate (0.07 mm/y, 0.14 mm/y), reduced weight loss (0.006 ± 2, 0.011 ± 2) and increased corrosion inhibition efficiency (59%, 18%) were identified in both system II and system IV. Peak intensity was reduced in both surface analysis studies (FTIR and XRD) in the presence of mushroom extract and AgNPs. EIS studies reveal that the mushroom extract and AgNPs act as a corrosive green inhibitor and adsorbs on the mild steel surfaces in cooling water tower system, which are responsible for corrosion protection.
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Affiliation(s)
| | - Muthukumar Suganya
- Department of Biotechnology, Mother Teresa Women's University, Kodaikanal, 624101, Tamil Nadu, India
| | - Jayaraman Narenkumar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, 632115, India
- Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, Selaiyur, Chennai, 600073, Tamil Nadu, India
| | - Mohamad S AlSalhi
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh KSA, P.O. Box -2455, Riyadh, 11451, Kingdom of Saudi Arabia.
| | - Sandhanasamy Devanesan
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh KSA, P.O. Box -2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | | | - Seralathan Kamalakannan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, 54596, South Korea
| | - Aruliah Rajasekar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, 632115, India.
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Elumalai P, Parthipan P, AlSalhi MS, Huang M, Devanesan S, Karthikeyan OP, Kim W, Rajasekar A. Characterization of crude oil degrading bacterial communities and their impact on biofilm formation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 286:117556. [PMID: 34438488 DOI: 10.1016/j.envpol.2021.117556] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/24/2021] [Accepted: 06/06/2021] [Indexed: 06/13/2023]
Abstract
In the present study, produced water sample collected from the Indian crude oil reservoir is used to enrich the bacterial communities. The impact of these enriched bacterial communities on the biodegradation of crude oil, biofilm formation, and biocorrosion process are elucidated. A crude oil degradation study is carried out with the minimal salt medium and 94% of crude oil was utilized by enriched bacterial communities. During the crude oil degradation many enzymes including alkane hydroxylase, alcohol dehydrogenase, and lipase are playing a key role in the biodegradation processes. The role of enriched bacterial biofilm on biocorrosion reactions are monitored by weight loss studies and electrochemical analysis. Weight loss study revealed that the biotic system has vigorous corrosion attacks compared to the abiotic system. Both AC-Impedance and Tafel analysis confirmed that the nature of the corrosion reaction take place in the biotic system. Very less charge transfer resistance and higher corrosion current are observed in the biotic system than in the abiotic system. Scanning electron microscope confirms that the dense biofilm formation favoured the pitting type of corrosion. X-ray diffraction analysis confirms that the metal oxides formed in the corrosion systems (biotic). From the metagenomic analysis of the V3-V4 region revealed that presence of diverse bacterial communities in the biofilm, and most of them are uncultured/unknown. Among the known genus, Bacillus, Halomonas, etc are dominant in the enriched bacterial biofilm sample. From this study, we conclude that the uncultured bacterial strains are found to be playing a key role in the pitting type of corrosion and they can utilize crude oil hydrocarbons, which make them succeeded in extreme oil reservoir environments.
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Affiliation(s)
- Punniyakotti Elumalai
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou, 510006, PR China
| | - Punniyakotti Parthipan
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu, 632 115, India
| | - Mohamad S AlSalhi
- Research Chair in Laser Diagnosis of Cancers, College of Science, Department of Physics and Astronomy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mingzhi Huang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou, 510006, PR China
| | - Sandhanasamy Devanesan
- Research Chair in Laser Diagnosis of Cancers, College of Science, Department of Physics and Astronomy, King Saud University, Riyadh, 11451, Saudi Arabia
| | | | - Woong Kim
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea
| | - Aruliah Rajasekar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu, 632 115, India.
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Bacillus megaterium-induced biocorrosion on mild steel and the effect of Artemisia pallens methanolic extract as a natural corrosion inhibitor. Arch Microbiol 2020; 202:2311-2321. [PMID: 32564100 DOI: 10.1007/s00203-020-01951-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/03/2020] [Accepted: 06/10/2020] [Indexed: 12/19/2022]
Abstract
Methanolic extract of Artemisia pallens (MEAP) (Asteraceae) was explored as greenbiocorrosion inhibitor for mild steel 1010 in 1.5% sodium chloride environment. Bacillus megaterium SKR7 induces the development of biofilm on the metal surface and forms the pitting corrosion. MEAP was showed (25 ppm) optimum inhibition effect of biocorrosion and further corrosion rate was highly reduced (0.3335 mm/year) than the control system (0.009 mm/year). The electrochemical study has supported the results with a higher value of total resistance (34 Ω cm2) when compared to control systems. It reveals the formation of a protective layer on the metal surface and reduces the adsorption of biofilm. This was due to the antimicrobial effect of MEAP. Overall, the results recognized that MEAP used as a green corrosion inhibitor for MS 1010 with 83% inhibition efficiency.
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Preethi PS, Narenkumar J, Prakash AA, Abilaji S, Prakash C, Rajasekar A, Nanthini AUR, Valli G. Myco-Synthesis of Zinc Oxide Nanoparticles as Potent Anti-corrosion of Copper in Cooling Towers. J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01600-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Elumalai P, Parthipan P, Narenkumar J, Anandakumar B, Madhavan J, Oh BT, Rajasekar A. Role of thermophilic bacteria ( Bacillus and Geobacillus) on crude oil degradation and biocorrosion in oil reservoir environment. 3 Biotech 2019; 9:79. [PMID: 30800590 DOI: 10.1007/s13205-019-1604-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 02/01/2019] [Indexed: 12/16/2022] Open
Abstract
Thermophilic bacterial communities generate thick biofilm on carbon steel API 5LX and produce extracellular metabolic products to accelerate the corrosion process in oil reservoirs. In the present study, nine thermophilic biocorrosive bacterial strains belonging to Bacillus and Geobacillus were isolated from the crude oil and produced water sample, and identified using 16S rRNA gene sequencing. The biodegradation efficiency of hydrocarbons was found to be high in the presence of bacterial isolates MN6 (82%), IR4 (94%) and IR2 (87%). During the biodegradation process, induction of the catabolic enzymes such as alkane hydroxylase, alcohol dehydrogenase and lipase were also examined in these isolates. Among them, the highest activity of alkane hydroxylase (130 µmol mg-1 protein) in IR4, alcohol dehydrogenase (70 µmol mg-1 protein) in IR2, and higher lipase activity in IR4 (60 µmol mg-1 protein) was observed. Electrochemical impedance spectroscopy and X-ray diffraction data showed that these isolates oxidize iron into ferrous/ferric oxides as the corrosion products on the carbon steel surface, whilst the crude oil hydrocarbon served as a sole carbon source for bacterial growth and development in such extreme environments.
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Affiliation(s)
- Punniyakotti Elumalai
- 1Division of Biotechnology, Advanced Institute of Environment and Biosciences, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 54596 South Korea
| | - Punniyakotti Parthipan
- 2Electro-Materials Research Lab, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605 014 India
| | - Jayaraman Narenkumar
- 3Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115 India
| | - Balakrishnan Anandakumar
- 4Corrosion Science and Technology Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu 603102 India
| | - Jagannathan Madhavan
- 5Solar Energy Laboratory, Department of Chemistry, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115 India
| | - Byung-Taek Oh
- 1Division of Biotechnology, Advanced Institute of Environment and Biosciences, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 54596 South Korea
| | - Aruliah Rajasekar
- 3Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115 India
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Narenkumar J, Sathishkumar K, Selvi A, Gobinath R, Murugan K, Rajasekar A. Role of calcium-depositing bacteria Agrobacterium tumefaciens and its influence on corrosion of different engineering metals used in cooling water system. 3 Biotech 2017; 7:374. [PMID: 29071171 DOI: 10.1007/s13205-017-1007-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/09/2017] [Indexed: 11/24/2022] Open
Abstract
The present investigation deals with the role of calcium-depositing bacterial community on corrosion of various engineering metals, namely, brass alloy (BS), copper (Cu), stainless steel (SS) and mild steel (MS). Based on the corrosion behavior, Agrobacterium tumefaciens EN13, an aerobic bacterium is identified as calcium-depositing bacteria on engineering metals. The results of the study are supported with biochemical characterization, 16S rRNA gene sequencing, calcium quantification, weight loss, electrochemical (impedance and polarization) and surface analysis (XRD and FTIR) studies. The calcium quantification study showed carbonate precipitation in abiotic system/biotic system as 50 and 700 ppm, respectively. FTIR results too confirmed the accumulation of calcium deposits from the environment on the metal surface by EN13. Electrochemical studies too supported the corrosion mechanism by showing a significant increase in the charge transfer resistance (Rct) of abiotic system (44, 33.6, 45, 29.6 Ω cm2) than compared to biotic system (41, 10.1 29 and 25 Ω cm2). Hence, the outcome of the present study confirmed the enhanced bioaccumulation behavior of calcium by the strain, EN13.
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Affiliation(s)
- Jayaraman Narenkumar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115 India
| | - Kuppusamy Sathishkumar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115 India
| | - Adikesavan Selvi
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115 India
| | - Rajagopalan Gobinath
- Faculty of Life Sciences and Biotechnology, South Asian University, Akbar Bhawan, Chanakyapuri, New Delhi 110021 India
| | - Kadarkarai Murugan
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115 India
- Division of Entomology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu 641 046 India
| | - Aruliah Rajasekar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115 India
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Parthipan P, Elumalai P, Sathishkumar K, Sabarinathan D, Murugan K, Benelli G, Rajasekar A. Biosurfactant and enzyme mediated crude oil degradation by Pseudomonas stutzeri NA3 and Acinetobacter baumannii MN3. 3 Biotech 2017; 7:278. [PMID: 28794933 DOI: 10.1007/s13205-017-0902-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 05/12/2017] [Indexed: 12/11/2022] Open
Abstract
The present study focuses on the optimization of biosurfactant (BS) production using two potential biosurfactant producer Pseudomonas stutzeri NA3 and Acinetobacter baumannii MN3 and role of enzymes in the biodegradation of crude oil. The optimal conditions for P. stutzeri NA3 and A. baumannii MN3 for biodegradation were pH of 8 and 7; temperature of 30 and 40 °C, respectively. P. stutzeri NA3 and A. baumannii MN3 produced 3.81 and 4.68 g/L of BS, respectively. Gas chromatography mass spectrometry confirmed that BS was mainly composed of fatty acids. Furthermore, the role of the degradative enzymes, alkane hydroxylase, alcohol dehydrogenase and laccase on biodegradation of crude oil are explained. Maximum biodegradation efficiency (BE) was recorded for mixed consortia (86%) followed by strain P. stutzeri NA3 (84%). Both bacterial strains were found to be vigorous biodegraders of crude oil than other biosurfactant-producing bacteria due to their enzyme production capabilities and our results suggests that the bacterial isolates can be used for effective degradation of crude oil within short time periods.
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Affiliation(s)
- Punniyakotti Parthipan
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu 632115 India
| | - Punniyakotti Elumalai
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu 632115 India
| | - Kuppusamy Sathishkumar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu 632115 India
| | - Devaraj Sabarinathan
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, Tamilnadu 641046 India
| | - Kadarkarai Murugan
- Division of Entomology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamilnadu 641046 India
- Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu 632115 India
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Aruliah Rajasekar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu 632115 India
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Parthipan P, Narenkumar J, Elumalai P, Preethi PS, Usha Raja Nanthini A, Agrawal A, Rajasekar A. Neem extract as a green inhibitor for microbiologically influenced corrosion of carbon steel API 5LX in a hypersaline environments. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.05.059] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Elumalai P, Parthipan P, Karthikeyan OP, Rajasekar A. Enzyme-mediated biodegradation of long-chain n-alkanes (C 32 and C 40) by thermophilic bacteria. 3 Biotech 2017; 7:116. [PMID: 28567628 DOI: 10.1007/s13205-017-0773-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 02/06/2017] [Indexed: 01/31/2023] Open
Abstract
Removal of long-chain hydrocarbons and n-alkanes from oil-contaminated environments are mere important to reduce the ecological damages, while bio-augmentation is a very promising technology that requires highly efficient microbes. In present study, the efficiency of pure isolates, i.e., Geobacillus thermoparaffinivorans IR2, Geobacillus stearothermophillus IR4 and Bacillus licheniformis MN6 and mixed consortium on degradation of long-chain n-alkanes C32 and C40 was investigated by batch cultivation test. Biodegradation efficiencies were found high for C32 by mixed consortium (90%) than pure strains, while the pure strains were better in degradation of C40 than mixed consortium (87%). In contrast, the maximum alkane hydroxylase activities (161 µmol mg-1 protein) were recorded in mixed consortium system that had supplied with C40 as sole carbon source. Also, the alcohol dehydrogenase (71 µmol mg-1 protein) and lipase activity (57 µmol mg-1 protein) were found high. Along with the enzyme activities, the hydrophobicity natures of the bacterial strains were found to determine the degradation efficiency of the hydrocarbons. Thus, the study suggested that the hydrophobicity of the bacteria is a critical parameter to understand the biodegradation of n-alkanes.
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Parthipan P, Babu TG, Anandkumar B, Rajasekar A. Biocorrosion and Its Impact on Carbon Steel API 5LX by Bacillus subtilis A1 and Bacillus cereus A4 Isolated From Indian Crude Oil Reservoir. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/s40735-017-0091-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Parthipan P, Preetham E, Machuca LL, Rahman PKSM, Murugan K, Rajasekar A. Biosurfactant and Degradative Enzymes Mediated Crude Oil Degradation by Bacterium Bacillus subtilis A1. Front Microbiol 2017; 8:193. [PMID: 28232826 PMCID: PMC5299021 DOI: 10.3389/fmicb.2017.00193] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 01/26/2017] [Indexed: 11/13/2022] Open
Abstract
In this work, the biodegradation of the crude oil by the potential biosurfactant producing Bacillus subtilis A1 was investigated. The isolate had the ability to synthesize degradative enzymes such as alkane hydroxylase and alcohol dehydrogenase at the time of biodegradation of hydrocarbon. The biosurfactant producing conditions were optimized as pH 7.0, temperature 40°C, 2% sucrose and 3% of yeast extract as best carbon and nitrogen sources for maximum production of biosurfactant (4.85 g l-1). Specifically, the low molecular weight compounds, i.e., C10-C14 were completely degraded, while C15-C19 were degraded up to 97% from the total hydrocarbon pools. Overall crude oil degradation efficiency of the strain A1 was about 87% within a short period of time (7 days). The accumulated biosurfactant from the biodegradation medium was characterized to be lipopeptide in nature. The strain A1 was found to be more robust than other reported biosurfactant producing bacteria in degradation efficiency of crude oil due to their enzyme production capability and therefore can be used to remove the hydrocarbon pollutants from contaminated environment.
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Affiliation(s)
- Punniyakotti Parthipan
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University Vellore, India
| | - Elumalai Preetham
- School of Aquatic Food Products and Technology, Kerala University of Fisheries and Ocean Studies Kochi, India
| | - Laura L Machuca
- Curtin Corrosion Engineering Industry Centre, School of Chemical and Petroleum Engineering, Curtin University, Bentley WA, Australia
| | - Pattanathu K S M Rahman
- School of Science and Engineering, Technology Futures Institute, Teesside UniversityMiddlesbrough, UK; TeeGene Biotech Ltd., Wilton CentreRedcar, UK
| | - Kadarkarai Murugan
- Division of Entomology, Department of Zoology, School of Life Sciences, Bharathiar UniversityCoimbatore, India; Thiruvalluvar UniversityVellore, India
| | - Aruliah Rajasekar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University Vellore, India
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Some like it hot, some like it cold: Temperature dependent biotechnological applications and improvements in extremophilic enzymes. Biotechnol Adv 2015; 33:1912-22. [DOI: 10.1016/j.biotechadv.2015.11.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 11/12/2015] [Accepted: 11/12/2015] [Indexed: 11/23/2022]
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Rajasekar A, Balasubramanian R, VM Kuma J. Role of Hydrocarbon Degrading Bacteria Serratia marcescens ACE2 and Bacillus cereus ACE4 on Corrosion of Carbon Steel API 5LX. Ind Eng Chem Res 2011. [DOI: 10.1021/ie200709q] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aruliah Rajasekar
- Department of Civil and Environmental Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576
| | - Rajasekhar Balasubramanian
- Department of Civil and Environmental Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576
| | - Joshua VM Kuma
- Minerals, Metals, and Materials Technology Centre (M3TC), National University of Singapore, Faculty of Engineering, Singapore 117576
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Maruthamuthu S, Kumar BD, Ramachandran S, Anandkumar B, Palanichamy S, Chandrasekaran M, Subramanian P, Palaniswamy N. Microbial Corrosion in Petroleum Product Transporting Pipelines. Ind Eng Chem Res 2011. [DOI: 10.1021/ie1023707] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sundaram Maruthamuthu
- Corrosion Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630 006 Tamil Nadu, India
| | - Baskaran Dinesh Kumar
- Corrosion Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630 006 Tamil Nadu, India
| | - Shanmugavel Ramachandran
- Corrosion Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630 006 Tamil Nadu, India
| | - Balakrishnan Anandkumar
- Corrosion Science and Technology Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India
| | - Seeni Palanichamy
- Offshore Platform and Marine Electrochemistry Centre, CECRI Unit, Harbour Area, Tuticorin 630 004, India
| | - Maruthai Chandrasekaran
- Corrosion Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630 006 Tamil Nadu, India
| | - Palani Subramanian
- Corrosion Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630 006 Tamil Nadu, India
| | - Narayanan Palaniswamy
- Corrosion Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630 006 Tamil Nadu, India
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Cavicchioli R, Charlton T, Ertan H, Mohd Omar S, Siddiqui KS, Williams TJ. Biotechnological uses of enzymes from psychrophiles. Microb Biotechnol 2011; 4:449-60. [PMID: 21733127 PMCID: PMC3815257 DOI: 10.1111/j.1751-7915.2011.00258.x] [Citation(s) in RCA: 189] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The bulk of the Earth's biosphere is cold (e.g. 90% of the ocean's waters are ≤ 5°C), sustaining a broad diversity of microbial life. The permanently cold environments vary from the deep ocean to alpine reaches and to polar regions. Commensurate with the extent and diversity of the ecosystems that harbour psychrophilic life, the functional capacity of the microorganisms that inhabitat the cold biosphere are equally diverse. As a result, indigenous psychrophilic microorganisms provide an enormous natural resource of enzymes that function effectively in the cold, and these cold‐adapted enzymes have been targeted for their biotechnological potential. In this review we describe the main properties of enzymes from psychrophiles and describe some of their known biotechnological applications and ways to potentially improve their value for biotechnology. The review also covers the use of metagenomics for enzyme screening, the development of psychrophilic gene expression systems and the use of enzymes for cleaning.
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Affiliation(s)
- R Cavicchioli
- School of Biotechnology and Biomolecular Sciences, The University of New South Wales, Sydney, NSW 2052, Australia.
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Characterization of corrosive bacterial consortia isolated from petroleum-product-transporting pipelines. Appl Microbiol Biotechnol 2009; 85:1175-88. [DOI: 10.1007/s00253-009-2289-9] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2009] [Revised: 09/01/2009] [Accepted: 10/04/2009] [Indexed: 10/20/2022]
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