1
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Sun A, Wang WX. Differentiation of cellular responses to particulate and soluble constituents in sunscreen products. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134791. [PMID: 38833954 DOI: 10.1016/j.jhazmat.2024.134791] [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: 03/12/2024] [Revised: 05/16/2024] [Accepted: 05/31/2024] [Indexed: 06/06/2024]
Abstract
Despite the growing awareness of potential human and environmental risks associated with sunscreens, identifying the specific constituents responsible for their potential toxicity is challenging. In this study, we applied three different types of sunscreens with contrasting compositions and compared the effects of their particulate and soluble fractions based on 15 cellular biomarkers of HaCaT cells. Multilinear regression analysis revealed that the internalized soluble fractions played a primary role in the overall cytotoxicity of sunscreen mixtures, which was primarily attributed to their biotransformation, generating metabolites with higher toxicity. The presence of plastic microspheres in sunscreens either inhibited the internalization of soluble fractions or led to their redistribution toward lysosomes. Conversely, subcellular toxicity resulting from the sunscreen mixture was predominantly influenced by particulates. Bio-transformable particulates such as ZnO dissolved in the organelles and induced higher subcellular toxicity compared to bioinert particulates such as microplastics. Subcellular biomarkers including lysosomal count, lysosomal size, mitochondrial count and mitochondrial shape emerged as the potential predictors of sunscreen presence. Our study provides important understanding of sunscreen toxicity by elucidating the differential impacts of particulate and soluble fractions in mixture contaminants.
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Affiliation(s)
- Anqi Sun
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China.
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2
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Suresh A, Abraham J. Degradation of Emerging Pharmaceutical Pollutants from Wastewater Using Penicillium aurantiogriseum 2AJS. Appl Biochem Biotechnol 2024; 196:3488-3510. [PMID: 37672162 DOI: 10.1007/s12010-023-04653-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2023] [Indexed: 09/07/2023]
Abstract
Approximately 3000 pharmaceutical compounds and personal care products (PPCPs) are utilized and discharged into the wastewater at low levels, and they are rarely removed or treated in wastewater treatment facilities. The present study focused on the potential ability of Penicillium aurantiogriseum 2AJS to degrade pharmaceutical and personal care products of different classes of drugs: antipyretic and analgesic drugs (paracetamol, diclofenac, and ibuprofen) and hormones (estrogen, progesterone, and testosterone). Various ligninolytic extracellular enzymatic studies were also studied. A phytotoxicity assay was performed using the Lemna minor species procured from the Vellore Institute of Technology, Vellore. The results revealed degradation of pharmaceutical and personal care products to 95.27% (paracetamol), 94.37% (diclofenac), 89.29% (ibuprofen), 94.16% (progesterone), 91.10% (estrogen), and 82.12% (testosterone). GC-MS and NMR analyses aided in proposing the degradation pathway of all six pharmaceutical compounds. Degradation kinetics showed a first-order model for all the degradation studies with R2 values ranging between 0.89 and 0.95. A toxicological assay using Lemna minor showed very less toxicity of degraded compounds with a toxicity index ranging between 1.2 and 1.5 compared to the parent compounds. Hence, strain 2AJS can be used in in situ bioremediation of wastewater treatment processes.
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Affiliation(s)
- Anushree Suresh
- Microbial Biotechnology Laboratory, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
| | - Jayanthi Abraham
- Microbial Biotechnology Laboratory, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India.
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3
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Rani MHS, Nandana RK, Khatun A, Brindha V, Midhun D, Gowtham P, Mani SSD, Kumar SR, Aswini A, Muthukumar S. Three strategy rules of filamentous fungi in hydrocarbon remediation: an overview. Biodegradation 2024:10.1007/s10532-024-10086-1. [PMID: 38733427 DOI: 10.1007/s10532-024-10086-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 04/13/2024] [Indexed: 05/13/2024]
Abstract
Remediation of hydrocarbon contaminations requires much attention nowadays since it causes detrimental effects on land and even worse impacts on aquatic environments. Tools of bioremediation especially filamentous fungi permissible for cleaning up as much as conceivable, at least they turn into non-toxic residues with less consumed periods. Inorganic chemicals, CO2, H2O, and cell biomass are produced as a result of the breakdown and mineralization of petroleum hydrocarbon pollutants. This paper presents a detailed overview of three strategic rules of filamentous fungi in remediating the various aliphatic, and aromatic hydrocarbon compounds: utilizing carbons from hydrocarbons as sole energy, Co-metabolism manners (Enzymatic and Non-enzymatic theories), and Biosorption approaches. Upliftment in the degradation rate of complex hydrocarbon by the Filamentous Fungi in consortia scenario we can say, "Fungal Talk", which includes a variety of cellular mechanisms, including biosurfactant production, biomineralization, and precipitation, etc., This review not only displays its efficiency but showcases the field applications - cost-effective, reliable, eco-friendly, easy to culture as biomass, applicable in both land and any water bodies in operational environment cleanups. Nevertheless, the potentiality of fungi-human interaction has not been fully understood, henceforth further studies are highly endorsed with spore pathogenicity of the fungal species capable of high remediation rate, and the gene knockout study, if the specific peptides cause toxicity to any living matters via Genomics and Proteomics approaches, before application of any in situ or ex situ environments.
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Affiliation(s)
| | - Ramesh Kumar Nandana
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Coimbatore, India
| | - Alisha Khatun
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Coimbatore, India
| | - Velumani Brindha
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Coimbatore, India
| | - Durairaj Midhun
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Coimbatore, India
| | - Ponnusamy Gowtham
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Coimbatore, India
| | | | | | - Anguraj Aswini
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Coimbatore, India
| | - Sugumar Muthukumar
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Coimbatore, India
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4
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Yuan D, Long Y, Liu D, Zhou F, Liu C, Chen L, Pan Y. Ecological impact of surfactant Tween-80 on plankton: High-scale analyses reveal deeper hazards. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169176. [PMID: 38086477 DOI: 10.1016/j.scitotenv.2023.169176] [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: 08/31/2023] [Revised: 11/18/2023] [Accepted: 12/05/2023] [Indexed: 01/18/2024]
Abstract
The ecological risks of surfactants have been largely neglected because of their low toxicity. Multiscale studies have indicated that even if a pollutant causes no acute toxicity in a test species, it may alter interspecific interactions and community characteristics through sublethal impacts on test organisms. Therefore, we investigated the lethal and sublethal responses of the plankton species Scenedesmus quadricauda, Chlorella vulgaris, and Daphnia magna, to surfactant Tween-80. Then, high-scale responses in grazer life-history traits and stability of the D. magna-larval damselfly system were further explored. The results showed that discernible adverse effects on the growth or survival of the three plankton species were evident only at exceptionally high concentrations (≥100 mg L-1). However, 10 mg L-1 of Tween-80 notably affected the MDA concentration in grazer species, simultaneously displaying a tendency to diminish grazer's heartbeat and swimming frequency. Furthermore, Tween-80 reduced the grazer reproductive capacity and increased its predation risk by larval damselflies, which ultimately jeopardized the stability of the D. magna-larval damselfly system at much lower concentrations (10-100 fold lower) than the individual-scale responses. This study provides evidence that high-scale traits are far more sensitive to Tween-80, compared with individual-scale traits for plankton organisms, suggesting that the ecological risks of Tween-80 demand careful reassessment. SYNOPSIS: The concentration of Tween-80 needed to induce changes in community characteristics is markedly lower than that needed to produce individual-scale consequences. Thus, high-scale analyses have broad implications for understanding the hazardous effects of surfactants compared with an individual-scale analysis.
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Affiliation(s)
- Duanyang Yuan
- School of Ecology and Environmental Sciences & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming, Yunnan 650091, China; Yunnan International Cooperative Center of Plateau Lake Ecological Restoration and Watershed Management & Yunnan Think Tank of Ecological Civilization, Kunming, Yunnan 650091, China
| | - Yaoyue Long
- School of Ecology and Environmental Sciences & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming, Yunnan 650091, China; Yunnan International Cooperative Center of Plateau Lake Ecological Restoration and Watershed Management & Yunnan Think Tank of Ecological Civilization, Kunming, Yunnan 650091, China; Institute of International Rivers and Eco-Security, Yunnan University, Kunming, Yunnan 650091, China
| | - Dan Liu
- School of Ecology and Environmental Sciences & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming, Yunnan 650091, China; Yunnan International Cooperative Center of Plateau Lake Ecological Restoration and Watershed Management & Yunnan Think Tank of Ecological Civilization, Kunming, Yunnan 650091, China
| | - Fangjie Zhou
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming, Yunnan 650091, China
| | - Change Liu
- School of Ecology and Environmental Sciences & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming, Yunnan 650091, China; Yunnan International Cooperative Center of Plateau Lake Ecological Restoration and Watershed Management & Yunnan Think Tank of Ecological Civilization, Kunming, Yunnan 650091, China
| | - Liqiang Chen
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming, Yunnan 650091, China
| | - Ying Pan
- School of Ecology and Environmental Sciences & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming, Yunnan 650091, China; Yunnan International Cooperative Center of Plateau Lake Ecological Restoration and Watershed Management & Yunnan Think Tank of Ecological Civilization, Kunming, Yunnan 650091, China.
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5
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Bokade P, Bajaj A. Molecular advances in mycoremediation of polycyclic aromatic hydrocarbons: Exploring fungal bacterial interactions. J Basic Microbiol 2023; 63:239-256. [PMID: 36670077 DOI: 10.1002/jobm.202200499] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/15/2022] [Accepted: 12/18/2022] [Indexed: 01/22/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous high global concern environmental pollutants and tend to bioaccumulate due to hydrophobic properties. These xenobiotics, having variable concentrations along different matrices, gradually undergo various physical, chemical, and biological transformation processes. Myco-remediation aids accelerated degradation by effectively transforming complex ring structures to oxidized/hydroxylated intermediates, which can further funnel to bacterial degradation pathways. Exploitation of such complementing fungal-bacterial enzymatic activity can overcome certain limitations of incomplete bioremediation process. Furthermore, high-throughput molecular methods can be employed to unveil community structure, taxon abundance, coexisting community interactions, and metabolic pathways under stressed conditions. The present review critically discusses the role of different fungal phyla in PAHs biotransformation and application of fungal-bacterial cocultures for enhanced mineralization. Moreover, recent advances in bioassays for PAH residue detection, monitoring, developing xenobiotics stress-tolerant strains, and application of fungal catabolic enzymes are highlighted. Application of next-generation sequencing methods to reveal complex ecological networks based on microbial community interactions and data analysis bias in performing such studies is further discussed in detail. Conclusively, the review underscores the application of mixed-culture approach by critically highlighting in situ fungal-bacterial community nexus and its role in complete mineralization of PAHs for the management of contaminated sites.
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Affiliation(s)
- Priyanka Bokade
- Environmental Biotechnology and Genomics Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Abhay Bajaj
- Environmental Biotechnology and Genomics Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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6
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Ghosh S, Rusyn I, Dmytruk OV, Dmytruk KV, Onyeaka H, Gryzenhout M, Gafforov Y. Filamentous fungi for sustainable remediation of pharmaceutical compounds, heavy metal and oil hydrocarbons. Front Bioeng Biotechnol 2023; 11:1106973. [PMID: 36865030 PMCID: PMC9971017 DOI: 10.3389/fbioe.2023.1106973] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/31/2023] [Indexed: 02/16/2023] Open
Abstract
This review presents a comprehensive summary of the latest research in the field of bioremediation with filamentous fungi. The main focus is on the issue of recent progress in remediation of pharmaceutical compounds, heavy metal treatment and oil hydrocarbons mycoremediation that are usually insufficiently represented in other reviews. It encompasses a variety of cellular mechanisms involved in bioremediation used by filamentous fungi, including bio-adsorption, bio-surfactant production, bio-mineralization, bio-precipitation, as well as extracellular and intracellular enzymatic processes. Processes for wastewater treatment accomplished through physical, biological, and chemical processes are briefly described. The species diversity of filamentous fungi used in pollutant removal, including widely studied species of Aspergillus, Penicillium, Fusarium, Verticillium, Phanerochaete and other species of Basidiomycota and Zygomycota are summarized. The removal efficiency of filamentous fungi and time of elimination of a wide variety of pollutant compounds and their easy handling make them excellent tools for the bioremediation of emerging contaminants. Various types of beneficial byproducts made by filamentous fungi, such as raw material for feed and food production, chitosan, ethanol, lignocellulolytic enzymes, organic acids, as well as nanoparticles, are discussed. Finally, challenges faced, future prospects, and how innovative technologies can be used to further exploit and enhance the abilities of fungi in wastewater remediation, are mentioned.
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Affiliation(s)
- Soumya Ghosh
- Department of Genetics, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa,*Correspondence: Soumya Ghosh, ,
| | - Iryna Rusyn
- Department of Ecology and Sustainaible Environmental Management, Viacheslav Chornovil Institute of Sustainable Development, Lviv Polytechnic National University, Lviv, Ukraine
| | - Olena V. Dmytruk
- Institute of Cell Biology NAS of Ukraine, Lviv, Ukraine,Institute of Biology and Biotechnology, University of Rzeszow, Rzeszow, Poland
| | - Kostyantyn V. Dmytruk
- Institute of Cell Biology NAS of Ukraine, Lviv, Ukraine,Institute of Biology and Biotechnology, University of Rzeszow, Rzeszow, Poland
| | - Helen Onyeaka
- School of Chemical Engineering, University of Birmingham, Birmingham, United Kingdom
| | - Marieka Gryzenhout
- Department of Genetics, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
| | - Yusufjon Gafforov
- Mycology Laboratory, Institute of Botany, Academy of Sciences of Republic of Uzbekistan, Tashkent, Uzbekistan,AKFA University, Tashkent, Uzbekistan
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7
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Wolski EA. The versatility of <i>Penicillium</i> species to degrade organic pollutants and its use for wastewater treatment. STUDIES IN FUNGI 2023. [DOI: 10.48130/sif-2023-0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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8
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Nazar M, Shah MUH, Ahmad A, Yahya WZN, Goto M, Moniruzzaman M. Ionic Liquid and Tween-80 Mixture as an Effective Dispersant for Oil Spills: Toxicity, Biodegradability, and Optimization. ACS OMEGA 2022; 7:15751-15759. [PMID: 35571843 PMCID: PMC9096972 DOI: 10.1021/acsomega.2c00752] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/29/2022] [Indexed: 05/07/2023]
Abstract
Chemical dispersants are used extensively for oil spill remediation. Most of these dispersants are composed of a mixture of surfactants and organic solvents, which raises concerns about aquatic toxicity and environmental impact. In this study, the toxicity and biodegradability of an oil spill dispersant composed of the surface-active ionic liquid 1-butyl-3-methylimidazolium lauroyl sarcosinate [Bmim][Lausar] and Tween-80 were investigated. In addition, important environmental factors including salinity, temperature, and wave-mixing energy were optimized to obtain maximum dispersion effectiveness. The acute toxicity against zebrafish (Danio rerio) showed that the developed dispersant was practically non-toxic with a median lethal dose of more than 100 mg L-1 after 96 h. The dispersant also demonstrated outstanding biodegradability of 66% after 28 days. A model was developed using a response surface methodology that efficiently (R 2 = 0.992) related the salinity, temperature, and wave-mixing energy of seawater to dispersion effectiveness. The system was then optimized, and a high dispersion effectiveness of 89.70% was obtained with an experimental error of less than 2%. Our findings suggest that the surface-active ionic liquid and Tween-80 mixture could be a viable alternative to toxic chemical dispersants for oil spill remediation.
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Affiliation(s)
- Masooma Nazar
- Department
of Chemical Engineering, Universiti Teknologi
PETRONAS, Bandar
Seri Iskandar, 32610 Perak, Malaysia
| | - Mansoor Ul Hassan Shah
- Department
of Chemical Engineering, University of Engineering
and Technology, 25120 Peshawar, Pakistan
| | - Aqeel Ahmad
- Department
of Chemical Engineering, Universiti Teknologi
PETRONAS, Bandar
Seri Iskandar, 32610 Perak, Malaysia
| | - Wan Zaireen Nisa Yahya
- Department
of Chemical Engineering, Universiti Teknologi
PETRONAS, Bandar
Seri Iskandar, 32610 Perak, Malaysia
- Center
of Research in Ionic Liquids (CORIL), Universiti
Teknologi PETRONAS, Bandar Seri
Iskandar, 32610 Perak, Malaysia
| | - Masahiro Goto
- Department
of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744,
Moto-oka, 819-0395 Fukuoka, Japan
| | - Muhammad Moniruzzaman
- Department
of Chemical Engineering, Universiti Teknologi
PETRONAS, Bandar
Seri Iskandar, 32610 Perak, Malaysia
- Center
of Research in Ionic Liquids (CORIL), Universiti
Teknologi PETRONAS, Bandar Seri
Iskandar, 32610 Perak, Malaysia
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9
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Martínez-Toledo Á, del Carmen Cuevas-Díaz M, Guzmán-López O, López-Luna J, Ilizaliturri-Hernández C. Evaluation of in situ biosurfactant production by inoculum of P. putida and nutrient addition for the removal of polycyclic aromatic hydrocarbons from aged oil-polluted soil. Biodegradation 2022; 33:135-155. [DOI: 10.1007/s10532-022-09973-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 01/18/2022] [Indexed: 12/07/2022]
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10
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Sousa LC, Rodrigues CCS, Mendes RA, Corrêa JAM. PAH Profiles in Suspended Particulate Matter from an Urbanized River Within the Brazilian Amazon. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 105:86-94. [PMID: 32577782 DOI: 10.1007/s00128-020-02912-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 06/10/2020] [Indexed: 06/11/2023]
Abstract
The distribution, seasonal variation and sources of 16 polycyclic aromatic hydrocarbons (PAH) from suspended particulate matter (SPM) of the Aurá River, a small amazon typical river located in Northern Brazil, were determined. Gas chromatography-mass spectrometry analysis of SPM revealed a mixture of PAH from different origins and a seasonal variation of PAH primary source for the studied area. Pyrene was the dominant PAH in both studied periods. Total PAH content (ΣPAH) ranged from lower than quantification limit (< LOQ) to 2498.2 ng g-1 dw during the dry season and < LOQ to 2865.8 ng g-1 dw during the wet season. Low molecular weight PAH (LMW) represented 51% of ΣPAH during the dry season and 29% during the wet season. It was noted, by comparing previous data, that the main source of these compounds was altered after the deactivation of an irregular landfill next to the river.
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Affiliation(s)
- L C Sousa
- Geoscience Institute, Federal University of Pará, Belém, PA, Brazil.
| | - C C S Rodrigues
- Geoscience Institute, Federal University of Pará, Belém, PA, Brazil
| | - R A Mendes
- Public Health Researcher at Evandro Chagas Institute, Belém, PA, Brazil
| | - J A M Corrêa
- Geoscience Institute, Federal University of Pará, Belém, PA, Brazil
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Rani M, Shanker U. Degradation of tricyclic polyaromatic hydrocarbons in water, soil and river sediment with a novel TiO 2 based heterogeneous nanocomposite. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 248:109340. [PMID: 31386991 DOI: 10.1016/j.jenvman.2019.109340] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 07/18/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), pervasive and precedence pollutants have potential to decimate the bionetwork and human health. Therefore, photocatalytic degradation of toxic three membered PAHs, namely acenaphthene (ACN), phenanthrene (PHN) and fluorene (FLU) was explored in water and soil. Titanium dioxide based zinc hexacyanoferrate framework (TiO2@ZnHCF) nanocomposite was synthesized via a two step A. indica mediated co-precipitation method. Under sunlight, fall in concentration of PAHs (Water- 93%-96%, soil- 82%-86% and river sediment- 81.63%-85.43%) with time revealed superior activity of nanocomposite (TiO2@ZnHCF) as compared to the bared one. Slower degradation in soil and sediment could be attributed to the reduced diffusion caused by the interaction between the organic content of soil/sediment with PAHs. Doping caused an increase in surface area (118.15 m2g-1) with decrease in band gap energy (1.65 eV) and photoluminescence intensity. PAHs removal (Xm = 9.48 mg g-1 of ACN, 9.35 mg g-1 of PHN and 8.96 mg g-1 of FLU) involved role of "cation- π" interaction with nanocomposite. Besides, it reduced t1/2 values of ACN (1.88 h), PHN (2.09 h) and FLU (2.86 h) and resulted into smaller by-products. Smaller by-products like (Z)-prop-1-ene-1,2,3-triol (m/z = 91) and (E)-3-hydroxyacrylaldehyde (m/z = 71) identified in GC-MS, evidently braced e- excitement from encapsulated nanocatalyst followed by OH (active species) based oxidation of PAHs. Lower photoluminescence intensity indicates the least charge carrier recombination with highest photocatalytic activity of nanocomposites. Inclusive of the present study provides promising photocatalyst with greater surface activity, low quantum yield with charge separation, reusable up to ten cycles deprived of substantial loss of its action and suppressing the cost of process.
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Affiliation(s)
- Manviri Rani
- Department of Chemistry Malaviya National Institute of Technology Jaipur Jaipur, Rajasthan, 302017, India
| | - Uma Shanker
- Department of Chemistry Dr B R Ambedkar National Institute of Technology Jalandhar, Punjab, 144011, India.
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12
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Santos VSV, Silveira E, Pereira BB. Ecotoxicological assessment of synthetic and biogenic surfactants using freshwater cladoceran species. CHEMOSPHERE 2019; 221:519-525. [PMID: 30660908 DOI: 10.1016/j.chemosphere.2019.01.077] [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: 11/26/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Surfactants have been continuously detected within aquatic environments as a consequence of their use on a global scale. Lipopeptides are biosurfactants naturally produced by Bacillus subtilis that have been explored as green alternatives. The assessment of ecotoxicological parameters of synthetic and biogenic surfactants are required for evaluating toxicity values and to verify the eco-friendly behaviour of the biological compounds. This study aimed to conduct toxicity testing for different surfactants - sodium dodecyl sulphate and Triton X-100 - and biosurfactants - surfactin, iturin and fengycin - at different concentrations using Daphnia magna as model organism and Dendrocephalus brasiliensis as alternative test species for monitoring of pollutants in tropical freshwaters. According results, both species showed high sensitivity for the anionic compound SDS concerning the recommended dosage use, exhibiting EC50-48h values of 24.1 and 15.4 mg/L for D. magna and D. brasiliensis, respectively. Although the biological source, surfactin showed the lower safety behaviour among the biogenic surfactants, while iturin and fengycin revealed very low toxicity effects on both organisms. Besides, data exhibited a higher responsiveness of D. brasiliensis for all tested compounds in comparison to D. magna, highlighting the importance of this species for monitoring of pollutants in tropical and subtropical environments.
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Affiliation(s)
- Vanessa Santana Vieira Santos
- Federal University of Uberlândia, Department of Environmental Health, Laboratory of Environmental Health, Santa Mônica Campus, Avenida João Naves de Ávila, 2121, 38.408-100, Uberlândia, Minas Gerais, Brazil; Federal University of Uberlândia, Institute of Biotechnology, Department of Biotechnology, Umuarama Campus, Avenida Pará, 1720, 38.400-902 Uberlândia, Minas Gerais, Brazil.
| | - Edgar Silveira
- Federal University of Uberlândia, Institute of Biotechnology, Department of Biotechnology, Umuarama Campus, Avenida Pará, 1720, 38.400-902 Uberlândia, Minas Gerais, Brazil.
| | - Boscolli Barbosa Pereira
- Federal University of Uberlândia, Department of Environmental Health, Laboratory of Environmental Health, Santa Mônica Campus, Avenida João Naves de Ávila, 2121, 38.408-100, Uberlândia, Minas Gerais, Brazil; Federal University of Uberlândia, Institute of Biotechnology, Department of Biotechnology, Umuarama Campus, Avenida Pará, 1720, 38.400-902 Uberlândia, Minas Gerais, Brazil.
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Sonwani R, Giri B, Das T, Singh R, Rai B. Biodegradation of fluorene by neoteric LDPE immobilized Pseudomonas pseudoalcaligenes NRSS3 in a packed bed bioreactor and analysis of external mass transfer correlation. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.11.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Pozdnyakova N, Dubrovskaya E, Chernyshova M, Makarov O, Golubev S, Balandina S, Turkovskaya O. The degradation of three-ringed polycyclic aromatic hydrocarbons by wood-inhabiting fungus Pleurotus ostreatus and soil-inhabiting fungus Agaricus bisporus. Fungal Biol 2018; 122:363-372. [PMID: 29665962 DOI: 10.1016/j.funbio.2018.02.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 12/17/2017] [Accepted: 02/26/2018] [Indexed: 11/26/2022]
Abstract
The degradation of two isomeric three-ringed polycyclic aromatic hydrocarbons by the white rot fungus Pleurotus ostreatus D1 and the litter-decomposing fungus Agaricus bisporus F-8 was studied. Despite some differences, the degradation of phenanthrene and anthracene followed the same scheme, forming quinone metabolites at the first stage. The further fate of these metabolites was determined by the composition of the ligninolytic enzyme complexes of the fungi. The quinone metabolites of phenanthrene and anthracene produced in the presence of only laccase were observed to accumulate, whereas those formed in presence of laccase and versatile peroxidase were metabolized further to form products that were further included in basal metabolism (e.g. phthalic acid). Laccase can catalyze the initial attack on the PAH molecule, which leads to the formation of quinones, and that peroxidase ensures their further oxidation, which eventually leads to PAH mineralization. A. bisporus, which produced only laccase, metabolized phenanthrene and anthracene to give the corresponding quinones as the dominant metabolites. No products of further utilization of these compounds were detected. Thus, the fungi's affiliation with different ecophysiological groups and their cultivation conditions affect the composition and dynamics of production of the ligninolytic enzyme complex and the completeness of PAH utilization.
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Affiliation(s)
- Natalia Pozdnyakova
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prosp. Entuziastov 13, 410049, Saratov, Russia.
| | - Ekaterina Dubrovskaya
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prosp. Entuziastov 13, 410049, Saratov, Russia.
| | - Marina Chernyshova
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prosp. Entuziastov 13, 410049, Saratov, Russia.
| | - Oleg Makarov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prosp. Entuziastov 13, 410049, Saratov, Russia.
| | - Sergey Golubev
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prosp. Entuziastov 13, 410049, Saratov, Russia.
| | - Svetlana Balandina
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prosp. Entuziastov 13, 410049, Saratov, Russia.
| | - Olga Turkovskaya
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prosp. Entuziastov 13, 410049, Saratov, Russia.
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15
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Cheng M, Zeng G, Huang D, Yang C, Lai C, Zhang C, Liu Y. Tween 80 surfactant-enhanced bioremediation: toward a solution to the soil contamination by hydrophobic organic compounds. Crit Rev Biotechnol 2017; 38:17-30. [PMID: 28423946 DOI: 10.1080/07388551.2017.1311296] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The occurrence of hydrophobic organic compounds (HOCs) in the soil has become a highly significant environmental issue. This problem has been exacerbated by the strong sorption of HOCs to the soils, which makes them unavailable for most remediation processes. More and more works show that surfactant-enhanced biological technologies offer a great potential to clear up HOCs-contaminated soils. This article is a critical review of HOCs removal from soils using Tween 80 (one of the mostly used nonionic surfactants) aided biological remediation technologies. The review begins with a discussion of the fundamentals of Tween 80-enhanced desorption of HOCs from contaminated soils, with special emphasis on the biotoxicity of Tween 80. Successful results obtained by Tween 80-enhanced microbial degradation and phytoremediation are documented and discussed in section 3 and section 4, respectively. Results show Tween 80-enhanced biotechnologies are promising for treating HOCs-contaminated soils. However, considering the fact that most of these scientific studies have only been conducted at the laboratory-scale, many improvements are required before these technologies can be scaled up to the full-scale level. Moreover, further research on mechanisms related to the interaction of Tween 80 with degrading microorganisms and the plants is in high demand.
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Affiliation(s)
- Min Cheng
- a Department of Environmental Engineering, College of Environmental Science and Engineering , Hunan University , Changsha , Hunan , China.,b Department of Environmental Engineering , Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education , Changsha , Hunan , China
| | - Guangming Zeng
- a Department of Environmental Engineering, College of Environmental Science and Engineering , Hunan University , Changsha , Hunan , China.,b Department of Environmental Engineering , Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education , Changsha , Hunan , China
| | - Danlian Huang
- a Department of Environmental Engineering, College of Environmental Science and Engineering , Hunan University , Changsha , Hunan , China.,b Department of Environmental Engineering , Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education , Changsha , Hunan , China
| | - Chunping Yang
- a Department of Environmental Engineering, College of Environmental Science and Engineering , Hunan University , Changsha , Hunan , China.,b Department of Environmental Engineering , Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education , Changsha , Hunan , China
| | - Cui Lai
- a Department of Environmental Engineering, College of Environmental Science and Engineering , Hunan University , Changsha , Hunan , China.,b Department of Environmental Engineering , Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education , Changsha , Hunan , China
| | - Chen Zhang
- a Department of Environmental Engineering, College of Environmental Science and Engineering , Hunan University , Changsha , Hunan , China.,b Department of Environmental Engineering , Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education , Changsha , Hunan , China
| | - Yang Liu
- a Department of Environmental Engineering, College of Environmental Science and Engineering , Hunan University , Changsha , Hunan , China.,b Department of Environmental Engineering , Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education , Changsha , Hunan , China
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Ultrasonic-assisted biodegradation of endocrine disrupting compounds by Pseudomonas putida the importance of rhamnolipid for intermediate product degradation. Chem Res Chin Univ 2017. [DOI: 10.1007/s40242-017-6281-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Govarthanan M, Fuzisawa S, Hosogai T, Chang YC. Biodegradation of aliphatic and aromatic hydrocarbons using the filamentous fungus Penicillium sp. CHY-2 and characterization of its manganese peroxidase activity. RSC Adv 2017. [DOI: 10.1039/c6ra28687a] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel fungal strain, Penicillium sp. CHY-2, isolated from Antarctic soils, was effective for the degradation of decane at lower (20 °C) and medium (30 °C) temperatures.
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Affiliation(s)
- Muthusamy Govarthanan
- Department of Applied Sciences
- College of Environmental Technology
- Muroran Institute of Technology
- Muroran
- Japan
| | - Soichiro Fuzisawa
- Course of Chemical and Biological Engineering
- Division of Sustainable and Environmental Engineering
- College of Environmental Technology
- Muroran Institute of Technology
- Muroran
| | - Toshiki Hosogai
- Department of Applied Sciences
- College of Environmental Technology
- Muroran Institute of Technology
- Muroran
- Japan
| | - Young-Cheol Chang
- Department of Applied Sciences
- College of Environmental Technology
- Muroran Institute of Technology
- Muroran
- Japan
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18
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Pozdnyakova NN, Chernyshova MP, Grinev VS, Landesman EO, Koroleva OV, Turkovskaya OV. Degradation of fluorene and fluoranthene by the basidiomycete Pleurotus ostreatus. APPL BIOCHEM MICRO+ 2016. [DOI: 10.1134/s0003683816060132] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Song D, Liang S, Yan L, Shang Y, Wang X. Solubilization of Polycyclic Aromatic Hydrocarbons by Single and Binary Mixed Rhamnolipid-Sophorolipid Biosurfactants. JOURNAL OF ENVIRONMENTAL QUALITY 2016; 45:1405-1412. [PMID: 27380091 DOI: 10.2134/jeq2015.08.0443] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Biosurfactants are promising additives for surfactant enhanced remediation (SER) technologies due to their low toxicity and high biodegradability. To develop green and efficient additives for SER, the aqueous solubility enhancements of polycyclic aromatic hydrocarbons (PAHs; naphthalene, phenanthrene, and pyrene) by rhamnolipid (RL) and sophorolipid (SL) biosurfactants were investigated in single and binary mixed systems. The solubilization capacities were quantified in terms of the solubility enhancement factor, molar solubilization ratio (MSR), and micelle-water partition coefficient (). Rughbin's model was applied to evaluate the interaction parameters (β) in the mixed RL-SL micelles. The solubility of the PAHs increased linearly with the glycolipid concentration above the critical micelle concentration (CMC) in both single and mixed systems. Binary RL-SL mixtures exhibited greater solubilization than individual glycolipids. At a SL molar fraction of 0.7 to 0.8, the solubilization capacity was the greatest, and the MSR and reached their maximum values, and β values became positive. These results suggest that the two biosurfactants act synergistically to increase the solubility of the PAHs. The solubilization capacity of the RL-SL mixtures increased with increasing temperature and decreased with increasing salinity. The aqueous solubility of phenanthrene reached a maximum value at pH of 5.5. Moreover, the mixed RL-SL systems exhibited a strong ability to solubilize PAHs, even in the presence of heavy metal ions. These mixed biosurfactant systems have the potential to improve the performance of SER technologies using biosurfactants to solubilize hydrophobic organic contaminants by decreasing the applied biosurfactant concentration, which reduces the costs of remediation.
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Yadav T, Tikariha D, Lakra J, Satnami ML, Tiwari AK, Saha SK, Ghosh KK. Solubilization of polycyclic aromatic hydrocarbons in structurally different gemini and monomeric surfactants: A comparative study. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.01.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Enhanced Production of Ligninolytic Enzymes by a Mushroom Stereum ostrea. BIOTECHNOLOGY RESEARCH INTERNATIONAL 2014; 2014:815495. [PMID: 25610656 PMCID: PMC4293863 DOI: 10.1155/2014/815495] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 11/14/2014] [Accepted: 11/17/2014] [Indexed: 11/19/2022]
Abstract
The white rot fungi Stereum ostrea displayed a wide diversity in their response to supplemented inducers, surfactants, and copper sulphate in solid state fermentation. Among the inducers tested, 0.02% veratryl alcohol increased the ligninolytic enzyme production to a significant extent. The addition of copper sulphate at 300 μM concentration has a positive effect on laccase production increasing its activity by 2 times compared to control. Among the surfactants, Tween 20, Tween 80, and Triton X 100, tested in the studies, Tween 80 stimulated the production of ligninolytic enzymes. Biosorption of dyes was carried out by using two lignocellulosic wastes, rice bran and wheat bran, in 50 ppm of remazol brilliant blue and remazol brilliant violet 5R dyes. These dye adsorbed lignocelluloses were then utilized for the production of ligninolytic enzymes in solid state mode. The two dye adsorbed lignocelluloses enhanced the production of laccase and manganese peroxidase but not lignin peroxidase.
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22
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Abu-Ghunmi L, Badawi M, Fayyad M. Fate of Triton X-100 Applications on Water and Soil Environments: A Review. J SURFACTANTS DETERG 2014. [DOI: 10.1007/s11743-014-1584-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Jakovljević V, Milićević J, Stojanović J. Detergent-like stressor and nutrient in metabolism of Penicillium chrysogenum. BIOTECHNOL BIOTEC EQ 2014; 28:43-51. [PMID: 26019487 PMCID: PMC4433802 DOI: 10.1080/13102818.2014.901674] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The influence of detergents on the metabolism of Penicillium chrysogenum from two aspects, as a stress factor and potential nutrient, was studied. The fungus was isolated from the river bed Lepenica, Kragujevac, at a place where sewage domestic wastewater discharged into the river. The fungus was grown in a liquid nutrient medium according to Czapek with and without addition of commercial detergent (MERIX, Henkel, Serbia) at a concentration of 0.3% and 0.5%. The biochemical changes of pH, redox potential, free and total organic acids, total dry weight biomass, activity of alkaline and acid invertase and alkaline phosphatase were evaluated from day 3 to day 16 of the fungus growth. At the same time, detergent disappearance in terms of methylene blue active substances in the medium was measured. The detergent at a concentration of 0.5% showed a fungicide effect. In the medium with 0.3% of detergent, there was increased pH and concentration of organic acids, but decreased redox potential and total dry weight biomass. The detergent also showed an inhibitory effect on invertase and phosphatase activity. P. chrysogenum decomposed 50.2% of the total detergent concentration for an experimental period of 16 days.
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Affiliation(s)
- Violeta Jakovljević
- Institute for Biology and Ecology, Faculty of Science, University of Kragujevac , Kragujevac , Serbia
| | - Jasmina Milićević
- Institute for Biology and Ecology, Faculty of Science, University of Kragujevac , Kragujevac , Serbia
| | - Jelica Stojanović
- Institute for Biology and Ecology, Faculty of Science, University of Kragujevac , Kragujevac , Serbia
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24
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Bustamante M, Rubilar O, Diez MC. Effect of Soya Lecithin on Solubilization and Biodegradation of Pentachlorophenol by <i>Anthracophyllum discolor</i>. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/ajac.2014.51005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Hadibarata T, Kristanti RA. Effect of surfactants and identification of metabolites on the biodegradation of fluoranthene by basidiomycetes fungal isolate Armillaria sp. F022. Bioprocess Biosyst Eng 2013; 37:593-600. [DOI: 10.1007/s00449-013-1025-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 07/23/2013] [Indexed: 11/30/2022]
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26
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Abstract
The removal of No. 0 diesel oil from two kinds of soils artificially by natural rhamnolipid and synthetic sodium dodecyl sulfonate (SDS) were performed in a batch of soil washing studies. Results showed that both surfactants could remove significant amount of diesel oil from the contaminated soil at different solution concentrations compared with water alone. The maximum removal was obtained at surfactant concentrations below or equal to the critical micelle concentration (CMC). At surfactant concentrations higher than the CMC, removal of diesel oil did not increase further. SDS remained more in solution than rhamnolipid, thus, it was expected to be more effective than rhamnolipid to remove diesel oil. However, the next washing experiment showed that rhamnolipid had more considerable ability in removing diesel oil.
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27
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Lakra J, Tikariha D, Yadav T, Satnami ML, Ghosh KK. Study of Solubility Efficiency of Polycyclic Aromatic Hydrocarbons in Single Surfactant Systems. J SURFACTANTS DETERG 2013. [DOI: 10.1007/s11743-013-1507-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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28
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Müllerová M, Šváb M, Vysopalová Z, Nováková T. Solubilization of PCBs by Surfactant Solution: Minimization of Partitioning Loss of Surfactant. TENSIDE SURFACT DET 2013. [DOI: 10.3139/113.100378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Studies of solubilization of organic contaminants by surfactants are complicated by the fact that the effective surfactant concentration is decreased by partitioning into the organic phase. This paper introduces an experimental setup for surfactant solubilization where the partitioning loss of surfactants is minimized. Using this setup, two anionic (sodium dodecyl sulphate and Spolapon AOS 146) and one nonionic surfactant (Novanik 0633 A) were compared. When comparing solubilization efficacies expressed as multiples of the critical micelle concentration, the two anionic surfactants were able to solubilize a higher amount of polychlorinated biphenyls. For lower surfactant concentrations, solubilization efficacies were similar for all surfactants. However, it is necessary to take into account that the critical micelle concentration of the nonionic surfactant is considerably lower.
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29
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Cortés-Espinosa DV, Absalón ÁE, Sanchez N, Loera O, Rodríguez-Vázquez R, Fernández FJ. Heterologous expression of manganese peroxidase in Aspergillus niger and its effect on phenanthrene removal from soil. J Mol Microbiol Biotechnol 2012; 21:120-9. [PMID: 22286039 DOI: 10.1159/000331563] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
A strain of Aspergillus niger, previously isolated from sugarcane bagasse because of its capacity to degrade phenanthrene in soil by solid culture, was used to express a manganese peroxidase gene (mnp1) from Phanerochaete chrysosporium, aiming at increasing its polycyclic aromatic hydrocarbons degradation capacity. Transformants were selected based on their resistance to hygromycin B and the discoloration induced on Poly R-478 dye by the peroxidase activity. The recombinant A. niger SBC2-T3 strain developed MnP activity and was able to remove 95% of the initial phenanthrene (400 ppm) from a microcosm soil system after 17 days, whereas the wild strain removed 72% under the same conditions. Transformation success was confirmed by PCR amplification using gene-specific primers, and a single fragment (1,348 bp long, as expected) of the recombinant mnp1 was amplified in the DNA from transformants, which was absent from the parental strain.
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Affiliation(s)
- Diana V Cortés-Espinosa
- Centro de Investigación en Biotecnologóa Aplicada del IPN, Carretera Federal Santa Inés, Tepetitla de Lardizabal, Mexico
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30
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Sales PS, de Rossi RH, Fernández MA. Different behaviours in the solubilization of polycyclic aromatic hydrocarbons in water induced by mixed surfactant solutions. CHEMOSPHERE 2011; 84:1700-1707. [PMID: 21605888 DOI: 10.1016/j.chemosphere.2011.04.073] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 04/26/2011] [Accepted: 04/28/2011] [Indexed: 05/30/2023]
Abstract
Water solubility of polycyclic aromatic hydrocarbons (PAHs), viz, naphthalene and phenanthrene, in micellar solutions at 25°C was investigated, using two series of different binary mixtures of anionic and nonionic surfactants. Tween 80 and Brij-35 were used as nonionic surfactants whereas fatty acids or amphiphilic cyclodextrins (Mod-β-CD) synthesized in our laboratory were used as anionic ones. Solubilization capacity has been quantified in terms of the molar solubilization ratio and the micelle-water partition coefficient, using UV-visible spectrophotometry. Anionic surfactants exhibited less solubilization capacity than nonionics. The mixtures between Tween 80 and Mod-β-CD did not show synergism to increase the solubilization of PAHs. On the other hand, the mixtures formed by Tween 80 and fatty acids at all mole fractions studied produced higher enhancements of the solubility of naphthalene than the individual surfactants. The critical micellar concentration of the mixtures of Tween 80/sodium laurate was determined by surface tension measurements and spectrofluorimetry using pyrene as probe. The system is characterized by a negative interaction parameter (β) indicating attractive interactions between both surfactants in the range of the compositions studied.
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Affiliation(s)
- Pablo S Sales
- Instituto de Investigaciones en Físico-Química de Córdoba (INFIQC), Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA, Córdoba, Argentina
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31
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Agarry SE, Owabor CN. Anaerobic bioremediation of marine sediment artificially contaminated with anthracene and naphthalene. ENVIRONMENTAL TECHNOLOGY 2011; 32:1375-1381. [PMID: 21970179 DOI: 10.1080/09593330.2010.536788] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The bioremediation of marine sediments contaminated with naphthalene and anthracene was studied under anaerobic conditions to investigate the enhancing effect of a biostimulating agent (Tween 80, silicone oil, pig dung and NPK fertilizer) on the rate of degradation. Sediment samples were amended with the biostimulating agent (alone or in combination). The results showed that all the tested agents, applied individually to the sediments, increased the rate of anthracene and naphthalene degradation, with the pig dung having the greatest effect. The biodegradation data were fitted to a pseudo-first-order kinetic model, from which the biodegradation rate constant, as a measure of the enhancement of degradation rate by the biostimulators, was estimated. The rate constant values were consistently higher for the sediments treated with individual stimulators, or a combination of them, than for the untreated sediment. The contaminated sediment treated with the combination of Tween 80 and pig dung exhibited the highest biodegradation rate. The results indicated that the effect of various biostimulating agents, in combination or alone, on enhancing the degradation rate of anthracene and naphthalene can be arranged in the following order: Tween 80 + pig dung > silicone oil + pig dung > Tween 80 + NPK fertilizer > silicone oil + NPK fertilizer > pig dung > NPK fertilizer > Tween 80 > silicone oil. The addition of biostimulators increased the biodegradation potential of the intrinsic microbial populations; thus, these results will contribute to the development of new strategies for in situ bioremediation of anoxic sediments contaminated with polycyclic aromatic hydrocarbons
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Affiliation(s)
- Samuel E Agarry
- Biochemical Engineering Research Laboratory, Department of Chemical Engineering, Ladoke Akintola University of Technology, Ogbomoso, Nigeria.
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32
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Bustamante M, González ME, Cartes A, Diez MC. Effect of soya lecithin on the enzymatic system of the white-rot fungi Anthracophyllum discolor. J Ind Microbiol Biotechnol 2011; 38:189-97. [PMID: 20811924 DOI: 10.1007/s10295-010-0844-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Accepted: 07/26/2010] [Indexed: 10/19/2022]
Abstract
The present work optimized the initial pH of the medium and the incubation temperature for ligninolytic enzymes produced by the white-rot fungus Anthracophyllum discolor. Additionally, the effect of soya lecithin on mycelial growth and the production of ligninolytic enzymes in static batch cultures were evaluated. The critical micelle concentration of soya lecithin was also studied by conductivity. The effects of the initial pH (3, 4, and 5) and incubation temperature (20, 25, and 30°C) on different enzymatic activities revealed that the optimum conditions to maximize ligninolytic activity were 26°C and pH 5.5 for laccase and manganese peroxidase (MnP) and 30°C and pH 5.5 for manganese-independent peroxidase (MiP). Under these culture conditions, the maximum enzyme production was 10.16, 484.46, and 112.50 U L(-1) for laccase, MnP, and manganese-independent peroxidase MiP, respectively. During the study of the effect of soya lecithin on A. discolor, we found that the increase in soya lecithin concentration from 0 to 10 g L(-1) caused an increase in mycelial growth. On the other hand, in the presence of soya lecithin, A. discolor produced mainly MnP, which reached a maximum concentration of 30.64 ± 4.61 U L(-1) after 25 days of incubation with 1 g L(-1) of the surfactant. The other enzymes were produced but to a lesser extent. The enzymatic activity of A. discolor was decreased when Tween 80 was used as a surfactant. The critical micelle concentration of soya lecithin calculated in our study was 0.61 g L(-1).
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Affiliation(s)
- M Bustamante
- Doctoral Program in Sciences of Natural Resources, University of La Frontera, Ave. Francisco Salazar 01145, Box 54-D, Temuco, Chile.
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Lebeau T. Bioaugmentation for In Situ Soil Remediation: How to Ensure the Success of Such a Process. SOIL BIOLOGY 2011. [DOI: 10.1007/978-3-642-19769-7_7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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BASARAN PERVIN. ANTIFUNGAL EFFECT OF ACIDS AND SURFACE ACTIVE COMPOUNDS FOR POST-HARVEST CONTROL OF ASPERGILLUS PARASITICUS GROWTH ON HAZELNUT. J FOOD PROCESS PRES 2010. [DOI: 10.1111/j.1745-4549.2009.00442.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Gómez J, Alcántara MT, Pazos M, Sanromán MA. Remediation of polluted soil by a two-stage treatment system: desorption of phenanthrene in soil and electrochemical treatment to recover the extraction agent. JOURNAL OF HAZARDOUS MATERIALS 2010; 173:794-798. [PMID: 19758751 DOI: 10.1016/j.jhazmat.2009.08.103] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2009] [Revised: 08/19/2009] [Accepted: 08/20/2009] [Indexed: 05/28/2023]
Abstract
In this study, the feasibility of a two-stage treatment process for the remediation of soil contaminated with phenanthrene as a model polycyclic aromatic hydrocarbon (PAH) has been assessed at laboratory scale. The initial stage of the process involved contacting contaminated soil with a solution of Tween 80 to enhance the desorption of phenanthrene from soil. In order to simulate a flushing process this initial stage was carried out in a washing packed-bed soil column. At the optimised conditions the total phenanthrene removal attained a value of almost 65% after 3 days. The second stage of the suggested treatment involved regeneration of the washing solution via phenanthrene degradation. The use of an electrochemical treatment was proposed for surfactant recovery and degradation of contaminants present in the solution collected. This oxidation was accomplished via an electrochemical cell by using graphite as electrode material. The phenanthrene was almost totally degraded in 3 days, reaching a degradation of about 96%. In addition, a test in which this regenerated solution was employed in the washing process was carried out in shake flask and washing column. The results demonstrate that selective degradation of pollutants by electrochemical treatment is potentially effective in reusing surfactant in another polluted soil treatment.
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Affiliation(s)
- J Gómez
- Department of Chemical Engineering, University of Vigo, Vigo, Spain
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Czaplicka M, Chmielarz A. Application of biosurfactants and non-ionic surfactants for removal of organic matter from metallurgical lead-bearing slime. JOURNAL OF HAZARDOUS MATERIALS 2009; 163:645-649. [PMID: 18718712 DOI: 10.1016/j.jhazmat.2008.07.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2007] [Revised: 03/31/2008] [Accepted: 07/04/2008] [Indexed: 05/26/2023]
Abstract
The paper presents evaluation of different extracting solutions used for removal of organic matter, especially polycyclic aromatic hydrocarbons (PAHs), from slime produced in copper smelting. A series of extraction experiments was conducted using biosurfactants and non-ionic surfactant solutions of various concentrations. The results showed that the efficiencies of organic matter removal by biosurfactants were at the level of 20-30% and depended on the type of the used biosurfactant. Biolen Biogrease L, and mixture of alkylobenzenesulfonic acid and oxyethylene fatty alcohol were effective for removal of polycyclic aromatic hydrocarbons (above 50%), whereas Zymbiose-enz. was ineffective. Non-ionic surfactants were found to be more effective in removing organic matter than biosurfactants. In the case of non-ionic surfactants the removal efficiencies depended on the concentration. Increase of Tween 80 concentration caused decrease in the efficiency of organic matter removal. The similar results were obtained for Nonoxynol 14. By contrast, the increase of Nonoxynol 10 concentration resulted in increase of organic matter removal efficiency.
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Affiliation(s)
- Marianna Czaplicka
- Institute of Non-Ferrous Metals, 5 Sowińskiego Str., 44-100 Gliwice, Poland.
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37
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Leitão AL. Potential of Penicillium species in the bioremediation field. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2009; 6:1393-417. [PMID: 19440525 PMCID: PMC2681198 DOI: 10.3390/ijerph6041393] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2009] [Accepted: 03/17/2009] [Indexed: 11/16/2022]
Abstract
The effects on the environment of pollution, particularly that caused by various industrial activities, have been responsible for the accelerated fluxes of organic and inorganic matter in the ecosphere. Xenobiotics such as phenol, phenolic compounds, polycyclic aromatic hydrocarbons (PAHs), and heavy metals, even at low concentrations, can be toxic to humans and other forms of life. Many of the remediation technologies currently being used for contaminated soil and water involve not only physical and chemical treatment, but also biological processes, where microbial activity is the responsible for pollutant removal and/or recovery. Fungi are present in aquatic sediments, terrestrial habitats and water surfaces and play a significant part in natural remediation of metal and aromatic compounds. Fungi also have advantages over bacteria since fungal hyphae can penetrate contaminated soil, reaching not only heavy metals but also xenobiotic compounds. Despite of the abundance of such fungi in wastes, penicillia in particular have received little attention in bioremediation and biodegradation studies. Additionally, several studies conducted with different strains of imperfecti fungi, Penicillium spp. have demonstrated their ability to degrade different xenobiotic compounds with low co-substrate requirements, and could be potentially interesting for the development of economically feasible processes for pollutant transformation.
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Affiliation(s)
- Ana Lúcia Leitão
- Grupo de Ecologia da Hidrosfera, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Quinta da Torre, Caparica, Portugal.
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Abstract
Polycyclic aromatic hydrocarbons (PAHs) are toxic environmental pollutants that are known or suspected carcinogens or mutagens. Bioremediation has been used as a general way to eliminate them from the contaminated sites or aquifers, but their biodegradation is rather limited due to their low bioavailability because of their sparingly soluble nature. Surfactant-mediated biodegradation is a promising alternative. The presence of surfactants can increase the solubility of PAHs and hence potentially increase their bioavailability. However, inconclusive results have been reported on the effects of surfactant on the biodegradation of PAHs. In this work, surfactant-mediated biodegradation of PAHs is reviewed.
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Leonardi V, Giubilei M, Federici E, Spaccapelo R, Šašek V, Novotny C, Petruccioli M, D'Annibale A. Mobilizing agents enhance fungal degradation of polycyclic aromatic hydrocarbons and affect diversity of indigenous bacteria in soil. Biotechnol Bioeng 2008; 101:273-85. [DOI: 10.1002/bit.21909] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Mallick S, Pattnaik S, Swain K, De PK. Current Perspectives of Solubilization: Potential for Improved Bioavailability. Drug Dev Ind Pharm 2008; 33:865-73. [PMID: 17729104 DOI: 10.1080/03639040701429333] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
This review focuses on the recent techniques of solubilization for the attainment of effective absorption and improved bioavailability. Solubilization may be affected due to cosolvent water interaction or altered crystal structure by cosolvent addition. Micellar solubilization could be affected by both ionic strength and pH. Addition of cosolvents to the surfactant solutions offers only a small advantage because of the decrease in the solubilization capacity of the micelles. Polymorphism is known to influence dissolution and bioavailability of the drugs. Molecular modeling study of cyclodextrin inclusion complexations can predict the inclusion modes, stoichiometry of the complex, and the relative complexing efficiency of cyclodextrins with various drug molecules.
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Affiliation(s)
- Subrata Mallick
- Formulation Development and Drug Delivery Systems, Department of Pharmaceutics, College of Pharmaceutical Sciences, Mohuda, Berhampur, Orissa, India.
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Zhihuan Z, Fengpeng H, Qingwei B, Song L. Vertical distribution and environmental significance of sulfur and oxygen heterocyclic aromatic hydrocarbons in soil samples collected from Beijing, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2008; 153:457-67. [PMID: 17889417 DOI: 10.1016/j.envpol.2007.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2007] [Revised: 08/03/2007] [Accepted: 08/05/2007] [Indexed: 05/17/2023]
Abstract
Vertical distribution of the concentration and composition of some sulfur and oxygen heterocyclic aromatic hydrocarbons (SOHAHs), such as, fluorene, dibenzofuran, dibenzothiophene and their alkyl homologues in 10 soil profiles in Beijing have been investigated. The results showed that the concentrations and composition of SOHAHs in topsoil (0-30cm) from different profiles are different. The concentrations of SOHAHs in topsoils are much higher than that in bottom soils where the concentrations are relatively constant. The fingerprints of SOHAHs from same profile are similar in topsoil samples, which are obviously different at the deep part, which suggested that the sources of these compounds are consistent in topsoil and are discriminating between surface and bottom soils. The main sources of SOHAHs in surface soil were fossil fuel combustion, petroleum and wastewater irrigation, while those at deep part were likely derived from the degradation products of soil organic matters.
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Affiliation(s)
- Zhang Zhihuan
- Key Laboratory for Hydrocarbon Accumulation, China University of Petroleum, Beijing 102249, China.
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42
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Lippold H, Gottschalch U, Kupsch H. Joint influence of surfactants and humic matter on PAH solubility. Are mixed micelles formed? CHEMOSPHERE 2008; 70:1979-1986. [PMID: 17980402 DOI: 10.1016/j.chemosphere.2007.09.040] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2007] [Revised: 09/20/2007] [Accepted: 09/20/2007] [Indexed: 05/25/2023]
Abstract
Mobilization of polycyclic aromatic hydrocarbons (PAH) by surfactants, present at contaminated sites or deliberately introduced for remediation purposes, is inevitably associated with the influence of humic substances, which are ubiquitous in natural systems. Therefore, the solubilizing effects of anthropogenic and natural amphiphiles must be considered in their combined action since synergistic or antagonistic effects may be expected, for instance, as a consequence of mixed micellization. In this paper, solubilization of (14)C-labeled pyrene in single-component and mixed solutions of surfactants and humic acid (coal-derived) was investigated up to the micellar concentration range. At low concentrations, antagonistic effects were observed for systems with cationic as well as anionic surfactants. Solubility enhancements in the presence of humic acid were canceled on addition of a cationic surfactant (DTAB) since charge compensation at humic colloids entailed precipitation. Solubility was also found to be decreased in the presence of an anionic surfactant (SDS), which was attributed to a competitive effect in respect of pyrene-humic interaction. This explanation is based on octanol-water partitioning experiments with radiolabeled humic acid, yielding evidence of different interaction modes between humic colloids and cationic/anionic surfactants. At higher concentrations, the effects of humic acid and SDS were found to be additive. Thus, a formation of mixed micelles is very unlikely, which was confirmed by size exclusion chromatography of mixed systems. It can be concluded that remediation measures on the basis of micellar solubilization are not significantly affected by the presence of natural amphiphilic compounds.
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Affiliation(s)
- Holger Lippold
- Institut für Interdisziplinäre Isotopenforschung, Permoserstrasse 15, 04318 Leipzig, Germany.
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Jin D, Jiang X, Jing X, Ou Z. Effects of concentration, head group, and structure of surfactants on the degradation of phenanthrene. JOURNAL OF HAZARDOUS MATERIALS 2007; 144:215-21. [PMID: 17113708 DOI: 10.1016/j.jhazmat.2006.10.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2006] [Revised: 09/21/2006] [Accepted: 10/07/2006] [Indexed: 05/12/2023]
Abstract
The effects of concentration, polar/ionic head group, and structure of surfactants on the biodegradation of polycyclic aromatic hydrocarbons (PAHs) in the aqueous phase, as well as their effects on the bacterial activity were investigated. The toxicity ranking of studied surfactants is: non-ionic surfactants (Tween 80, Brij30, 10LE and Brij35)<anionic surfactants (LAS)<cationic surfactants (TDTMA). For the same head group and similar molecular structure, the toxicity to the bacteria is due to the chain length, in which the toxicity becomes lower as the chain length increases. The bacterial growth increased slightly when phenanthrene and LAS (<or=10 mgL(-1)) served the sole carbon and energy resource. However, the degradation of (14)C-phenanthrene showed either a decrease or no obvious change with the surfactants present at all tested concentrations (5-40 mgL(-1)). Thus, the surfactant addition is not beneficial to the removal of phenanthrene or other PAH contaminants due presumably to the preferential utilization of surfactants at low levels as the non-toxic nutrient resource and to the high toxicity of the surfactants at high levels to the microorganism activity. Biodegradation of phenanthrene was also influenced by the surfactant concentration, head group type, and structure. Much more research has yet to be completed on the use of surfactants for soil remediation due to the surfactant toxicity or biodegradation effect.
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Affiliation(s)
- Danyue Jin
- State Environmental Protect Key Laboratory of Lake Eutrophication Control, Research Center of Lake Environment, Chinese Research Academy of Environmental Science, No. 8 Dayangfang, An Wai Bei Yuan, Beijing 100012, China
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Yu H, Zhu L, Zhou W. Enhanced desorption and biodegradation of phenanthrene in soil-water systems with the presence of anionic-nonionic mixed surfactants. JOURNAL OF HAZARDOUS MATERIALS 2007; 142:354-61. [PMID: 16987596 DOI: 10.1016/j.jhazmat.2006.08.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2006] [Revised: 08/10/2006] [Accepted: 08/11/2006] [Indexed: 05/11/2023]
Abstract
The effects of anionic-nonionic mixed surfactants, sodium dodecyl sulfate (SDS) mixed with Triton X-100 (TX100), on the desorption and biodegradation of phenanthrene in soil-water system were investigated in an aim to improve the efficiency of surfactant bioremediation technology. Results indicated that the presence of SDS not only increased the solubilization of TX100 for phenanthrene, but also reduced the sorption of TX100 onto soils. As a result, the desorption efficiency of phenanthrene from the contaminated soil was greatly enhanced by mixed surfactant solutions compared with that by single TX100 solution and appeared to be positively related with the mole fraction of SDS in solution. Mixed surfactants with relatively smaller ratio promoted phenanthrene biodegradation, for example, the biodegradation percentage of phenanthrene in 1:9 SDS-TX100 mixed solutions was about 165% of that in the single TX100 solution at the same TX100 concentration of 1.6 mmol/L in 24h. But the biodegradation was inhibited with larger ratio of SDS in the mixed solutions, which may be due to the preferential utilization of SDS by phenanthrene degraders. Thus, the selection of mixed surfactants should consider simultaneously the effects of SDS on desorption and biodegradation. The experimental results can be used to provide valuable information in designing the surfactant bioremediation technology for contaminated soils.
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Affiliation(s)
- Haisu Yu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310028, PR China
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45
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Luz C, Batagin I. Potential of oil-based formulations of Beauveria bassiana to control Triatoma infestans. Mycopathologia 2005; 160:51-62. [PMID: 16160769 DOI: 10.1007/s11046-005-0210-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2004] [Accepted: 01/01/2005] [Indexed: 11/25/2022]
Abstract
The in vitro development of Beauveria bassiana conidia was monitored when immersed in six concentrations of seven non-ionic (MP 6400, MP 600, Renex 60, Renex 95, Span 80, Tween 20 and Tween 80) and three anionic (DOS 75, Hostapaval BVQ 9 and Surfax 220) surfactants and 11 vegetable oils (linseed, soybean, groundnut, rapeseed, thistle, sunflower, olive, sesame, corn, castor, and babassu). The influence of the oils on the settling behavior of Triatoma infestans nymphs and the activity of an oil-water formulation of the fungus against this vector under laboratory and simulated field conditions were also determined. With exception of DOS 75 and Surfax 220 germination of conidia on complete medium was >98% at 24 h after exposure to surfactants up to 10%. Elevated rates of germination (>25%) were observed in 10% corn, thistle and linseed oil 8 days after incubation. Pure oils had a significant repellent effect to T. infestans. Repellency decreased generally at 10% of the oil and some oils showed some attractiveness for nymphs when tested at 1%. Nymphs were highly susceptible to oil-water formulated conidia, even at unfavorable moisture for extra-tegumental development of the fungus on the insect cuticle.
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Affiliation(s)
- C Luz
- DMIPP, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás (UFG), CP 131, 74001-970, Goiânia, GO, Brazil.
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Conte P, Agretto A, Spaccini R, Piccolo A. Soil remediation: humic acids as natural surfactants in the washings of highly contaminated soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2005; 135:515-522. [PMID: 15749548 DOI: 10.1016/j.envpol.2004.10.006] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2004] [Accepted: 10/15/2004] [Indexed: 05/24/2023]
Abstract
The remediation of the highly contaminated site around the former chemical plant of ACNA (near Savona) in Northern Italy is a top priority in Italy. The aim of the present work was to contribute in finding innovative and environmental-friendly technology to remediate soils from the ACNA contaminated site. Two soils sampled from the ACNA site (A and B), differing in texture and amount and type of organic contaminants, were subjected to soil washings by comparing the removal efficiency of water, two synthetic surfactants, sodium dodecylsulphate (SDS) and Triton X-100 (TX100), and a solution of a natural surfactant, a humic acid (HA) at its critical micelle concentration (CMC). The extraction of pollutants by sonication and soxhlet was conducted before and after the soil washings. Soil A was richer in polycyclic aromatic hydrocarbons, whereas soil B had a larger content of thiophenes. Sonication resulted more analytically efficient in the fine-textured soil B. The coarse-textured soil A was extracted with a general equal efficiency also by soxhlet. Clean-up by water was unable to exhaustively remove contaminants from the two soils, whereas all the organic surfactants revealed very similar efficiencies (up to 90%) in the removal of the contaminants from the soils. Hence, the use of solutions of natural HAs appears as a better choice for soil washings of highly polluted soils due to their additional capacity to promote microbial activity, in contrast to synthetic surfactants, for a further natural attenuation in washed soils.
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Affiliation(s)
- Pellegrino Conte
- Dipartimento di Scienze del Suolo, della Pianta e dell'Ambiente, Università di Napoli Federico II, Via Università 100, 80055 Portici, Italy.
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Salvo VS, Gallizia I, Moreno M, Fabiano M. Fungal communities in PAH-impacted sediments of Genoa-Voltri Harbour (NW Mediterranean, Italy). MARINE POLLUTION BULLETIN 2005; 50:553-9. [PMID: 15907497 DOI: 10.1016/j.marpolbul.2005.01.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Organic matter (in terms of carbohydrates and proteins), polycyclic aromatic hydrocarbons (PAHs) and bacterial density were investigated in the sediments of three stations in Genoa-Voltri Harbour (NW Mediterranean), and related to the sedimentary fungal community. Sites were significantly different in all investigated parameters (ANOVA, p<0.05), and a sharp gradient of impact in the area was found. All the 81 strains of filamentous fungi isolated, belonging to 7 genera, appeared to be linked with PAHs (p<0.05; r=0.95), whereas bacterial density was positively correlated with organic matter content (p<0.05; r=0.98). Within the fungal community, strains with a high capability to degrade xenobiotics were found. Among the genera identified, Penicillium, Mucor and Cladosporium showed the highest frequency in the sites where the heaviest concentrations of PAHs were recorded. This study suggests that fungal communities are important for in situ degradation of xenobiotics in impacted sediments.
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Affiliation(s)
- V S Salvo
- Dipartimento per lo Studio del Territorio e delle sue Risorse (DIP.TE.RIS.), Università di Genova, C. so Europa 26, Genova 16132, Italy.
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Zhao B, Zhu L, Li W, Chen B. Solubilization and biodegradation of phenanthrene in mixed anionic-nonionic surfactant solutions. CHEMOSPHERE 2005; 58:33-40. [PMID: 15522330 DOI: 10.1016/j.chemosphere.2004.08.067] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2003] [Revised: 08/11/2004] [Accepted: 08/23/2004] [Indexed: 05/24/2023]
Abstract
The effects of mixed anionic-nonionic surfactants, sodium dodecyl sulfate (SDS) mixed with Tween80 (TW80), Triton X-100 (TX100) and Brij35 respectively on the solubility enhancement and biodegradation of phenanthrene in the aqueous phase were investigated. The efficiency of solubilization and biodegradation of phenanthrene in single-, and mixed-surfactant solutions were also compared. The critical micellar concentrations (CMCs) of mixed surfactants were sharply lower than that of sole SDS. The degree of solubility enhancements by the mixed surfactants followed the order of SDS-TW80>SDS-Brij35>SDS-TX100. Synergistic solubilization was observed in the mixed surfactant solutions, in which the molar ratios of SDS to nonionic surfactant were 1:0, 9:1, 7:3, 5:5, 3:7, 1:9 and 0:1 while the total concentration of surfactants was kept at 5.0 and 10.0 mM, respectively. SDS-Brij35 exhibited more significant degree of synergistic solubility enhancement for phenanthrene. The mixed surfactants exhibited no inhibitory effect on biodegradation of phenanthrene. Substantial amounts of the solubilized phenanthrene by mixed surfactants were completely degraded by phenanthrene-degrading microorganisms within 96 h. The results suggested that anionic-nonionic surfactants would improve the performance of remediation of PAH-contaminated soils.
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Affiliation(s)
- Baowei Zhao
- Department of Environmental Science, Xixi Campus, Zhejiang University, Hangzhou 310028, China
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49
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Potin O, Veignie E, Rafin C. Biodegradation of polycyclic aromatic hydrocarbons (PAHs) by Cladosporium sphaerospermum isolated from an aged PAH contaminated soil. FEMS Microbiol Ecol 2004; 51:71-8. [PMID: 16329856 DOI: 10.1016/j.femsec.2004.07.013] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2004] [Revised: 06/03/2004] [Accepted: 07/14/2004] [Indexed: 10/26/2022] Open
Abstract
The ability of a Deuteromycete fungus, Cladosporium sphaerospermum, previously isolated from soil of an aged gas manufacturing plant, to degrade polycyclic aromatic hydrocarbons was investigated. This strain was able to degrade PAHs in non-sterile soils (average 23%), including high molecular weight PAHs, after 4 weeks of incubation. In a microcosm experiment, PAH depletion was clearly correlated to fungal establishment. In liquid culture, this strain degraded rapidly benzo(a)pyrene during its early exponential phase of growth (18% after 4 days of incubation). Among extracellular ligninolytic enzyme activities tested, only laccase activity was detected in liquid culture in the absence or in presence of benzo(a)pyrene. C. sphaerospermum might be a potential candidate for an effective bioremediation of aged PAH-contaminated soils.
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Affiliation(s)
- Olivier Potin
- Université du Littoral Côte d'Opale, 50 rue Ferdinand Buisson, BP 699, F-62228 Calais Cédex, France
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Garon D, Sage L, Wouessidjewe D, Seigle-Murandi F. Enhanced degradation of fluorene in soil slurry by Absidia cylindrospora and maltosyl-cyclodextrin. CHEMOSPHERE 2004; 56:159-166. [PMID: 15120562 DOI: 10.1016/j.chemosphere.2004.02.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2003] [Revised: 08/04/2003] [Accepted: 02/20/2004] [Indexed: 05/24/2023]
Abstract
This study investigates the fungal biodegradation of fluorene, a polycyclic aromatic hydrocarbon, in liquid medium and soil slurry. Fungal strains and cyclodextrins were used in order to degrade fluorene and optimize fluorene bioavailability and degradation in soil slurries. After a procedure of selection in solid and liquid media, maltosyl-cyclodextrin, a branched cyclodextrin was chosen. 47 fungal strains isolated from a contaminated site were tested for biodegradation. Results showed the greater efficiency of "adapted" fungi isolated from contaminated soil vs reference strains belonging to the collection of the laboratory. These assays allowed us to select the most efficient strain, Absidia cylindrospora, which was used in a bioaugmentation process. Bioaugmentation tests were performed in an artificially contaminated non-sterile soil. In the presence of A. cylindrospora, more than 90% of the fluorene was degraded within 288 h, while 576 h were necessary in the absence of fungal bioremediation. It also appeared that biodegradation was enhanced by amendment with previously selected maltosyl-cyclodextrin. The results of this study indicate that A. cylindrospora and maltosyl-cyclodextrin could be used successfully in fluorene bioremediation systems.
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Affiliation(s)
- D Garon
- Groupe Perturbations Environnementales et Xénobiotiques, Laboratoire d'Ecologie Alpine, UMR CNRS 5553, Université Joseph Fourier, BP 53, 38041 Grenoble Cedex 09, France
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