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Yu D, Guo X, Wang A, Wu Z, Shi J. Simulation and parameter determination of the net sorption of phenanthrene by sediment particles. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 278:116440. [PMID: 38733806 DOI: 10.1016/j.ecoenv.2024.116440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/16/2024] [Accepted: 05/03/2024] [Indexed: 05/13/2024]
Abstract
The distribution of polycyclic aromatic hydrocarbons (PAHs) in the ocean is affected by the sorption-desorption process of sediment particles. This process is determined by the concentration of PAHs in seawater, water temperature, and organic matter content of sediment particles. Quantitative relationships between the net sorption rates (=the difference of sorption and desorption rates) and these factors have not been established yet and used in PAH transport models. In this study, phenanthrene was chosen as the representative of PAHs. Three groups of experimental data were collected to address the dependence of the net sorption processes on the initial concentration, water temperature, and organic carbon content representing organic matter content. One-site and two-compartment mass-transfer models were tested to represent the experimental data using various parameters. The results showed that the two-compartment mass-transfer model performed better than the one-site mass-transfer model. The parameters of the two-compartment mass-transfer model include the sorption rate coefficients kafand kas (L g-1 min-1), and the desorption rate coefficients kdf and kds (min-1). The parameters at different temperatures and organic carbon contents were obtained by numerical simulations. Linear relationships were obtained between the parameters and water temperature, as well as organic carbon content. kaf, kas and kdf decreased linearly, while kds increased linearly with temperature. kaf, kas and kdf increased linearly, while kds decreased linearly with organic carbon content. The r2 values between the simulation results based on the relationships and the experimental results reached 0.96-0.99, which supports the application of the model to simulate sorption-desorption processes at different water temperatures and organic carbon contents in a realistic ocean.
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Affiliation(s)
- Donglin Yu
- Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, 238 Songling Road, Qingdao 266100, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Xinyu Guo
- Center for Marine Environmental Studies, Ehime University2-5 Bunkyo-cho, Matsuyama 790-8577,Japan
| | - Aobo Wang
- School of Hydraulic Engineering, Ludong University, Yantai, Shandong 264025, China
| | - Zhaosen Wu
- Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, 238 Songling Road, Qingdao 266100, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Jie Shi
- Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, 238 Songling Road, Qingdao 266100, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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Paul T, Janakiraman I, Manikandan NA, Pakshirajan K, Pugazhenthi G, Girisa S, Kunnumakkara AB. Reuse Potential of Refinery Wastewater Treated Using a Two‐Stage Submerged Membrane Bioreactor. Chem Eng Technol 2022. [DOI: 10.1002/ceat.202100496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tanushree Paul
- Indian Institute of Technology Guwahati Center for the Environment 781039 Guwahati Assam India
| | - Iyyappan Janakiraman
- Indian Institute of Technology Guwahati Center for the Environment 781039 Guwahati Assam India
| | - N. Arul Manikandan
- Indian Institute of Technology Guwahati Department of Chemical Engineering 781039 Guwahati Assam India
| | - Kannan Pakshirajan
- Indian Institute of Technology Guwahati Center for the Environment 781039 Guwahati Assam India
- Indian Institute of Technology Guwahati Department of Biosciences and Bioengineering 781039 Guwahati Assam India
| | - Gopal Pugazhenthi
- Indian Institute of Technology Guwahati Center for the Environment 781039 Guwahati Assam India
- Indian Institute of Technology Guwahati Department of Chemical Engineering 781039 Guwahati Assam India
| | - Sosmitha Girisa
- Indian Institute of Technology Guwahati Department of Biosciences and Bioengineering 781039 Guwahati Assam India
| | - Ajaikumar B. Kunnumakkara
- Indian Institute of Technology Guwahati Department of Biosciences and Bioengineering 781039 Guwahati Assam India
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Khan AL, Numan M, Bilal S, Asaf S, Crafword K, Imran M, Al-Harrasi A, Al-Sabahi JN, Rehman NU, A-Rawahi A, Lee IJ. Mangrove's rhizospheric engineering with bacterial inoculation improve degradation of diesel contamination. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127046. [PMID: 34481398 DOI: 10.1016/j.jhazmat.2021.127046] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Mangroves (Avicennia marina) growing in intertidal areas are often exposed to diesel spills, adversely damaging the ecosystem. Herein, we showed for the first time that mangrove seedlings' associations with bacteria could reprogram host-growth, physiology, and ability to degrade diesel. We found four bacterial strains [Sphingomonas sp.-LK11, Rhodococcus corynebacterioides-NZ1, Bacillus subtilis-EP1 Bacillus safensis-SH10] exhibiting significant growth during diesel degradation (2% and 5%, v/v) and higher expression of alkane monooxygenase compared to control. This is in synergy with reduced long-chain n-alkanes (C24-C30) during microbe-diesel interactions in the bioreactor. Among individual strains, SH10 exhibited significantly higher potential to improve mangrove seedling's morphology, anatomy and growth during diesel treatment in rhizosphere compared to control. This was also evidenced by reduced activities and gene expression of antioxidant enzymes (catalases, peroxidases, ascorbic peroxidases, superoxide dismutases and polyphenol peroxidases) and lipid peroxidation during microbe-diesel interactions. Interestingly, we noticed significantly higher soil-enzyme activities (phosphatases and glucosidases) and essential metabolites in seedling's rhizosphere after bacteria and diesel treatments. Degradation of longer n-alkane chains in the rhizosphere also revealed a potential pathway that benefits mangroves by bacterial strains during diesel contaminations. Current results support microbes' application to rhizoengineer plant growth, responses, and phytoextraction abilities in environments contaminated with diesel spills. AVAILABILITY OF DATA AND MATERIALS: The datasets generated during the current study are available in the NCBI GenBank ((https://www.ncbi.nlm.nih.gov).
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Affiliation(s)
- Abdul Latif Khan
- Natural & Medical Sciences Research Center, University of Nizwa, 616, Oman; Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA.
| | - Muhammad Numan
- Department of Biology, University of North Carolina at Greensboro, NC 27412, USA
| | - Saqib Bilal
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - Sajjad Asaf
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - Kerri Crafword
- Department of Biology and Biochemistry, College of Natural Science and Mathematics, University of Houston, TX, USA
| | - Muhammad Imran
- School of Applied Biosciences, Kyungpook National University, Daegu Korea, South Korea
| | - Ahmed Al-Harrasi
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA.
| | - Jamal Nasser Al-Sabahi
- Central Instrument Laboratory, College of Agriculture and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Najeeb Ur Rehman
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - Ahmed A-Rawahi
- Department of Engineering Technology, College of Technology, University of Houston, Sugar Land, 77479 TX, USA
| | - In-Jung Lee
- School of Applied Biosciences, Kyungpook National University, Daegu Korea, South Korea.
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Current trends and next generation of future edible oils. FUTURE FOODS 2022. [DOI: 10.1016/b978-0-323-91001-9.00005-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Catabolic enzyme activities during biodegradation of three-ring PAHs by novel DTU-1Y and DTU-7P strains isolated from petroleum-contaminated soil. Arch Microbiol 2021; 203:3101-3110. [PMID: 33797590 DOI: 10.1007/s00203-021-02297-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 02/05/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous pollutants having health hazards. PAH-utilizing bacterial strains were isolated from petroleum-contaminated soil from siding area, Bijwasan supply location of BPCL, Delhi, India. Bacterial strains with different morphology were isolated and acclimatized to a mixture of low molecular weight PAH compounds in the concentration range of 50-10,000 mg/L. Two bacterial strains surviving at 10,000 mg/L PAH concentration were identified as Kocuria flava and Rhodococcus pyridinivorans, based on 16S rRNA gene sequencing and phylogenetic analysis over MEGA X, are reported for the first time for PAH degradation. The strain K. flava could degrade phenanthrene, anthracene, and fluorene with efficiency of 55.13%, 59.01%, and 63.46%, whereas R. pyridinivorans exhibited 62.03%, 64.99%, and 66.79% degradation for respective PAHs at initial PAH concentration of 10 mg/L. Slightly lower degradation of phenanthrene could be attributed to its more stable chemical structure. The consortium of both the strains degraded 61.32%, 64.72%, and 66.64%, of 10 mg/L of phenanthrene, anthracene, and fluorene, respectively, in 15 days of incubation period indicating no synergistic or antagonistic effect towards degradation. Catechol 2,3-dioxygenase (C23O), dehydrogenase and peroxidase enzyme activities during PAH degradation coincided with degradation of PAHs, thus highlighting the role of these enzymes in catabolising three-ring PAHs. This is the first investigation confirming the participation of C23O, dehydrogenase and peroxidases enzyme profiles throughout the period of degradation. The study concludes that these strains can play significant role in microbial remediation of PAH-contaminated environment.
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Hans N, Malik A, Naik S. Antiviral activity of sulfated polysaccharides from marine algae and its application in combating COVID-19: Mini review. ACTA ACUST UNITED AC 2020; 13:100623. [PMID: 33521606 PMCID: PMC7836841 DOI: 10.1016/j.biteb.2020.100623] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/20/2020] [Accepted: 12/21/2020] [Indexed: 12/22/2022]
Abstract
Marine-derived sulfated polysaccharides possess various antiviral activities against a broad range of enveloped and non-enveloped viruses. It has become the potential source of antiviral drugs for pharmaceutical development. In this review, we will discuss the different types of sulfated polysaccharides and their structural classification. Some of the major sulfated polysaccharides with potent antiviral activity, including carrageenan, agar, ulvan, fucoidan, and alginates, are considered in this review. The mechanism of these sulfated polysaccharides in inhibiting the different stages of the viral infection process inside the host cell is also demonstrated. It involves blocking the initial entry of the virus or inhibiting its transcription and translation by modulating the immune response of the host cell. In addition, we explore the potential of sulfated polysaccharides as antiviral agents in preventing recent Corona Virus Disease-2019 (COVID-19).
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Affiliation(s)
- Nidhi Hans
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, India
| | - Anushree Malik
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, India
| | - Satyanarayan Naik
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, India
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Cho IJ, Choi KR, Lee SY. Microbial production of fatty acids and derivative chemicals. Curr Opin Biotechnol 2020; 65:129-141. [DOI: 10.1016/j.copbio.2020.02.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/14/2020] [Accepted: 02/14/2020] [Indexed: 12/11/2022]
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Behera AR, Dutta K, Verma P, Daverey A, Sahoo DK. High lipid accumulating bacteria isolated from dairy effluent scum grown on dairy wastewater as potential biodiesel feedstock. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 252:109686. [PMID: 31606715 DOI: 10.1016/j.jenvman.2019.109686] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 09/30/2019] [Accepted: 10/05/2019] [Indexed: 06/10/2023]
Abstract
The study evaluated the lipid accumulation potential of bacteria isolated from dairy effluent scum by the valorization of dairy wastewater as a renewable feedstock for biodiesel production. Three oleaginous bacteria (i.e. DS-1, DS-6, and DS-7) were screened on the basis of their lipid accumulation (>20% lipid content) and productivity on a glucose-based medium. The effect of different carbon sources (i.e. lactose, sucrose, starch, glucose, and xylose) on lipid accumulation capacity of the bacterial isolates was evaluated. The rod-shaped oleaginous bacterium DS-7 could accumulate 90% lipid with 1.2 g/l·d lipid productivity using lactose as a sole source of carbon. The bacteria could efficiently utilize dairy wastewater (~50% reduction in BOD) with reasonably high lipid accumulation (72.78%), biomass production (4.29 g/l) and lipid productivity (0.727 g/l·d). The lipids accumulated by bacterium DS-7 were mostly neutral lipids and contained fatty acids of chain length C14:0-C18:0, as confirmed by nile red staining and nuclear magnetic resonance (NMR) spectroscopy. Fourier-transform infrared (FTIR) spectroscopy and gas chromatography (GC) analysis of fatty acid methyl esters (FAME) revealed that transesterified bacterial lipids from the isolated bacteria DS-7 are suitable for biodiesel applications.
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Affiliation(s)
- Ashis Ranjan Behera
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Kasturi Dutta
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, Odisha, 769008, India.
| | - Priyanka Verma
- School of Environment and Natural Resources, Doon University, Dehradun, Uttarakhand, 248012, India
| | - Achlesh Daverey
- School of Environment and Natural Resources, Doon University, Dehradun, Uttarakhand, 248012, India
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Goswami L, Manikandan NA, Taube JCR, Pakshirajan K, Pugazhenthi G. Novel waste-derived biochar from biomass gasification effluent: preparation, characterization, cost estimation, and application in polycyclic aromatic hydrocarbon biodegradation and lipid accumulation by Rhodococcus opacus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:25154-25166. [PMID: 31256397 DOI: 10.1007/s11356-019-05677-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
This study evaluated an enhancement of simultaneous polycyclic aromatic hydrocarbon (PAH) biodegradation and lipid accumulation by Rhodococcus opacus using biochar derived cheaply from biomass gasification effluent. The chemical, physical, morphological, thermal, and magnetic properties of the cheaply derived biochar were initially characterized employing different techniques, which indicated that the material is easy to separate, recover, and reuse for further application. Batch experiments were carried out to study biochar-aided PAH biodegradation by R. opacus clearly demonstrating its positive effect on PAH biodegradation and lipid accumulation by the bacterium utilizing the synthetic media containing 2-, 3- or 4-ring PAH compounds, at an initial concentration in the range 50-200 mg L-1, along with 10% (w/v) inoculum. An enhancement in PAH biodegradation from 79.6 to 92.3%, 76.1 to 90.5%, 74.1 to 88.2%, and 71.6 to 82.3% for naphthalene, anthracene, phenanthrene, and fluoranthene, respectively, were attained with a corresponding lipid accumulation of 68.1%, 74.2%, 72.4%, and 63% (w/w) of cell dry weight (CDW). From contact angle measurements carried out in the study, enhancement in PAH biodegradation and lipid accumulation due to the biochar was attributed to an improved bioavailability of PAH to the degrading bacterium.
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Affiliation(s)
- Lalit Goswami
- Center for the Environment, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Natarajan Arul Manikandan
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | | | - Kannan Pakshirajan
- Center for the Environment, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India.
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India.
| | - Gopal Pugazhenthi
- Center for the Environment, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
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