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[PMID]:28672689
[Au] Autor:Esquinas N; Rodríguez-Valdés E; Márquez G; Gallego JLR
[Ad] Endereço:Environmental Technology, Biotechnology & Geochemistry Group and INDUROT, University of Oviedo, C/Gonzalo Gut. S/N, 33600 Mieres, Asturias, Spain; Center for Research in Sustainable Chemistry - CIQSO, University of Huelva, Campus El Carmen, 21007 Huelva, Spain.
[Ti] Título:Diagnostic ratios for the rapid evaluation of natural attenuation of heavy fuel oil pollution along shores.
[So] Source:Chemosphere;184:1089-1098, 2017 Oct.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Marine oil spills are typically followed by complex clean-up and monitoring operations of the shorelines affected. In this regard, determination of the changes in the chemical composition of the spilled product is crucial for evaluation purposes. The "GC-MS fingerprint" approach requires the identification of several key parameters in order to differentiate between weathering processes. In this context, we performed a 900-day study (eight sampling campaigns) of natural attenuation on a rocky shore affected by a heavy fuel oil spill. The residues coating the rocks were studied by extraction, separation and evaluation of SARA fractions, followed by GC-MS analysis for saturates and aromatics. The results identified a group of diagnostic ratios with irregular capabilities to differentiate between volatilization, photodegradation, and biodegradation (using n-alkanes, isoprenoids and PAHs), while a second group of primarily stable ratios (using dibenzothiphenes, tricyclics and hopanes) was also obtained. Notably, this is the first time that some of these ratios have been used for marine spill monitoring purposes. The ratios were applied not only to evaluate weathering at the study site, but also to obtain a comparison with the degradation of floating oil slicks-a demonstration that weathering of the latter was quicker than that of oil on the shore rocks. Additionally, Pyrolysis-GC-MS analysis of the asphaltene fraction of residues coating the rocks revealed moderate changes in the composition of this initially recalcitrant fraction. These changes were consistent with those found in the proportion of resins and asphaltene fractions over time.
[Mh] Termos MeSH primário: Biodegradação Ambiental
Monitoramento Ambiental
Óleos Combustíveis/análise
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Alcanos/análise
Cromatografia Gasosa-Espectrometria de Massas
Petróleo/análise
Poluição por Petróleo/análise
Hidrocarbonetos Aromáticos Policíclicos/análise
Terpenos/análise
Tempo (Meteorologia)
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Alkanes); 0 (Fuel Oils); 0 (Petroleum); 0 (Polycyclic Aromatic Hydrocarbons); 0 (Terpenes); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170929
[Lr] Data última revisão:
170929
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170705
[St] Status:MEDLINE


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[PMID]:28426923
[Au] Autor:Porosoff MD; Baldwin JW; Peng X; Mpourmpakis G; Willauer HD
[Ad] Endereço:Materials Science and Technology Division, Naval Research Laboratory, 4555 Overlook Avenue, Washington DC, 20375, USA.
[Ti] Título:Potassium-Promoted Molybdenum Carbide as a Highly Active and Selective Catalyst for CO Conversion to CO.
[So] Source:ChemSusChem;10(11):2408-2415, 2017 Jun 09.
[Is] ISSN:1864-564X
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The high concentration of CO bound in seawater represents a significant opportunity to extract and use this CO as a C feedstock for synthetic fuels. Using an existing process, CO and H can be concurrently extracted from seawater and then catalytically reacted to produce synthetic fuel. Hydrogenating CO directly into liquid hydrocarbons is exceptionally difficult, but by first identifying a catalyst for selective CO production through the reverse water-gas shift (RWGS) reaction, CO can then be hydrogenated to fuel through Fischer-Tropsch (FT) synthesis. Results of this study demonstrate that potassium-promoted molybdenum carbide supported on γ-Al O (K-Mo C/γ-Al O ) is a low-cost, stable, and highly selective catalyst for RWGS over a wide range of conversions. These findings are supported by X-ray diffraction, scanning electron microscopy with energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and density functional theory calculations.
[Mh] Termos MeSH primário: Dióxido de Carbono/química
Monóxido de Carbono/síntese química
Molibdênio/química
[Mh] Termos MeSH secundário: Monóxido de Carbono/química
Catálise
Óleos Combustíveis
Hidrogenação
Potássio
Água do Mar/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fuel Oils); 0 (molybdenum carbide); 142M471B3J (Carbon Dioxide); 7U1EE4V452 (Carbon Monoxide); 81AH48963U (Molybdenum); RWP5GA015D (Potassium)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170816
[Lr] Data última revisão:
170816
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170421
[St] Status:MEDLINE
[do] DOI:10.1002/cssc.201700412


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[PMID]:28358096
[Ti] Título:Trump's pipeline permit is bad for both the US economy and the environment.
[So] Source:Nature;543(7647):589, 2017 03 27.
[Is] ISSN:1476-4687
[Cp] País de publicação:England
[La] Idioma:eng
[Mh] Termos MeSH primário: Política Ambiental/economia
Política Ambiental/legislação & jurisprudência
Governo Federal
Óleos Combustíveis/economia
Óleos Combustíveis/provisão & distribuição
[Mh] Termos MeSH secundário: Canadá
Óleos Combustíveis/efeitos adversos
Aquecimento Global/prevenção & controle
Golfo do México
Cooperação Internacional
Política
Estados Unidos
[Pt] Tipo de publicação:EDITORIAL
[Nm] Nome de substância:
0 (Fuel Oils)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170811
[Lr] Data última revisão:
170811
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170331
[St] Status:MEDLINE
[do] DOI:10.1038/543589a


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[PMID]:28274761
[Au] Autor:Jung JH; Lee EH; Choi KM; Yim UH; Ha SY; An JG; Kim M
[Ad] Endereço:Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea; Department of Marine Environmental Science, Korea University of Science and Technology, Daejeon 34113, Republic of Korea.
[Ti] Título:Developmental toxicity in flounder embryos exposed to crude oils derived from different geographical regions.
[So] Source:Comp Biochem Physiol C Toxicol Pharmacol;196:19-26, 2017 Jun.
[Is] ISSN:1532-0456
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Crude oils from distinct geographical regions have distinct chemical compositions, and, as a result, their toxicity may be different. However, developmental toxicity of crude oils derived from different geographical regions has not been extensively characterized. In this study, flounder embryos were separately exposed to effluents contaminated by three crude oils including: Basrah Light (BLO), Pyrenees (PCO), and Sakhalin Vityaz (SVO), in addition to a processed fuel oil (MFO-380), to measure developmental toxicity and for gene expressions. Each oil possessed a distinct chemical composition. Edema defect was highest in embryos exposed to PCO and MFO-380 that both have a greater fraction of three-ring PAHs (33% and 22%, respectively) compared to BLO and SVO. Observed caudal fin defects were higher in embryos exposed to SVO and MFO-380, which are both dominated by naphthalenes (81% and 52%, respectively). CYP1A gene expressions were also highest in embryos exposed to SVO and MFO-380. Higher incidence of cardiotoxicity and lower nkx 2.5 expression were detected in embryos exposed to PCO. Unique gene expression profiles were observed in embryos exposed to crude oils with distinct compositions. This study demonstrates that crude oils of different geographical origins with different compositional characteristics induce developmental toxicity to different degrees.
[Mh] Termos MeSH primário: Proteínas de Peixes/metabolismo
Linguado/embriologia
Regulação da Expressão Gênica no Desenvolvimento/efeitos dos fármacos
Morfogênese/efeitos dos fármacos
Petróleo/toxicidade
Teratogênios/toxicidade
Poluentes Químicos da Água/toxicidade
[Mh] Termos MeSH secundário: Nadadeiras de Animais/anormalidades
Nadadeiras de Animais/efeitos dos fármacos
Nadadeiras de Animais/embriologia
Animais
Aquicultura
Austrália
Família 1 do Citocromo P450/química
Família 1 do Citocromo P450/genética
Família 1 do Citocromo P450/metabolismo
Proteínas de Peixes/agonistas
Proteínas de Peixes/antagonistas & inibidores
Proteínas de Peixes/genética
Linguado/anormalidades
Linguado/metabolismo
Óleos Combustíveis/análise
Óleos Combustíveis/toxicidade
Perfilação da Expressão Gênica
Coração/efeitos dos fármacos
Coração/embriologia
Proteína Homeobox Nkx-2.5/antagonistas & inibidores
Proteína Homeobox Nkx-2.5/genética
Proteína Homeobox Nkx-2.5/metabolismo
Iraque
Naftalenos/análise
Naftalenos/toxicidade
Petróleo/análise
Poluição por Petróleo/efeitos adversos
Hidrocarbonetos Aromáticos Policíclicos/análise
Hidrocarbonetos Aromáticos Policíclicos/toxicidade
Federação Russa
Teratogênios/análise
Teratogênios/química
Testes de Toxicidade
Poluentes Químicos da Água/análise
Poluentes Químicos da Água/química
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fish Proteins); 0 (Fuel Oils); 0 (Homeobox Protein Nkx-2.5); 0 (Naphthalenes); 0 (Petroleum); 0 (Polycyclic Aromatic Hydrocarbons); 0 (Teratogens); 0 (Water Pollutants, Chemical); EC 1.14.14.1 (Cytochrome P450 Family 1)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170809
[Lr] Data última revisão:
170809
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170310
[St] Status:MEDLINE


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[PMID]:28093673
[Au] Autor:Salam LB; Obayori SO; Nwaokorie FO; Suleiman A; Mustapha R
[Ad] Endereço:Microbiology Unit, Department of Biological Sciences, Al-Hikmah University, Ilorin, Kwara, Nigeria. babssalaam@yahoo.com.
[Ti] Título:Metagenomic insights into effects of spent engine oil perturbation on the microbial community composition and function in a tropical agricultural soil.
[So] Source:Environ Sci Pollut Res Int;24(8):7139-7159, 2017 Mar.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Analyzing the microbial community structure and functions become imperative for ecological processes. To understand the impact of spent engine oil (SEO) contamination on microbial community structure of an agricultural soil, soil microcosms designated 1S (agricultural soil) and AB1 (agricultural soil polluted with SEO) were set up. Metagenomic DNA extracted from the soil microcosms and sequenced using Miseq Illumina sequencing were analyzed for their taxonomic and functional properties. Taxonomic profiling of the two microcosms by MG-RAST revealed the dominance of Actinobacteria (23.36%) and Proteobacteria (52.46%) phyla in 1S and AB1 with preponderance of Streptomyces (12.83%) and Gemmatimonas (10.20%) in 1S and Geodermatophilus (26.24%), Burkholderia (15.40%), and Pseudomonas (12.72%) in AB1, respectively. Our results showed that soil microbial diversity significantly decreased in AB1. Further assignment of the metagenomic reads to MG-RAST, Cluster of Orthologous Groups (COG) of proteins, Kyoto Encyclopedia of Genes and Genomes (KEGG), GhostKOALA, and NCBI's CDD hits revealed diverse metabolic potentials of the autochthonous microbial community. It also revealed the adaptation of the community to various environmental stressors such as hydrocarbon hydrophobicity, heavy metal toxicity, oxidative stress, nutrient starvation, and C/N/P imbalance. To the best of our knowledge, this is the first study that investigates the effect of SEO perturbation on soil microbial communities through Illumina sequencing. The results indicated that SEO contamination significantly affects soil microbial community structure and functions leading to massive loss of nonhydrocarbon degrading indigenous microbiota and enrichment of hydrocarbonoclastic organisms such as members of Proteobacteria and Actinobacteria.
[Mh] Termos MeSH primário: Óleos Combustíveis/toxicidade
Metagenoma
Microbiologia do Solo
Poluentes do Solo/toxicidade
[Mh] Termos MeSH secundário: Metagenoma/efeitos dos fármacos
Metagenoma/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fuel Oils); 0 (Soil Pollutants)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171104
[Lr] Data última revisão:
171104
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170118
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-017-8364-3


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[PMID]:28065572
[Au] Autor:Bencs L; Horemans B; Buczynska AJ; Van Grieken R
[Ad] Endereço:Department of Chemistry, University of Antwerp (UA), Groenenborgerlaan 171, BE-2610 Antwerp, Belgium; Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, Hungarian Academy of Sciences, P.O. Box 49, H-1525 Budapest, Hungary. Electronic address: bencs.laszlo@wigner.mta.hu
[Ti] Título:Uneven distribution of inorganic pollutants in marine air originating from ocean-going ships.
[So] Source:Environ Pollut;222:226-233, 2017 Mar.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The distribution of mass, water-soluble inorganic salts and mineral elements of size-segregated aerosols (PM , PM and PM ), precursor gaseous pollutants, black carbon, and nanoparticles (10-300 nm size range) at the Southern Bight of the North Sea has been studied. The concentrations of air pollutants peaked over shipping lanes, open-water anchorage areas and frequently navigated waters, due to the presence of mobile emission sources. A considerable decrease in air pollutant levels was seen when diverting from these marine areas towards remote or coastal banks. These findings showed the rapid dispersion of pollutants in the marine air. The nano-aerosol count, originating from ocean-going ships, peaked at lower average aerodynamic diameters (e.g., ≈28 nm) than those, observed from low-displacement vessels (45-50 nm, e.g., for fishing boats). The average diameter of nano-PM depended also on weather conditions, e.g., it was higher (≈50 nm) in air of higher humidity.
[Mh] Termos MeSH primário: Poluentes Atmosféricos/análise
Monitoramento Ambiental/métodos
Material Particulado/análise
Água do Mar/química
Navios
Emissões de Veículos/análise
Poluentes da Água/análise
[Mh] Termos MeSH secundário: Aerossóis/análise
Óleos Combustíveis
Gases/análise
Nanopartículas/análise
Mar do Norte
Tamanho da Partícula
Tempo (Meteorologia)
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Aerosols); 0 (Air Pollutants); 0 (Fuel Oils); 0 (Gases); 0 (Particulate Matter); 0 (Vehicle Emissions); 0 (Water Pollutants)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170110
[St] Status:MEDLINE


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[PMID]:28050905
[Au] Autor:Gysel NR; Welch WA; Johnson K; Miller W; Cocker DR
[Ad] Endereço:Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California , Riverside, California 92521, United States.
[Ti] Título:Detailed Analysis of Criteria and Particle Emissions from a Very Large Crude Carrier Using a Novel ECA Fuel.
[So] Source:Environ Sci Technol;51(3):1868-1875, 2017 Feb 07.
[Is] ISSN:1520-5851
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Ocean going vessels (OGVs) operating within emission control areas (ECA) are required to use fuels with ≤0.1 wt % sulfur. Up to now only distillate fuels could meet the sulfur limits. Recently refiners created a novel low-sulfur heavy-fuel oil (LSHFO) meeting the sulfur limits so questions were posed whether nitric oxide (NO ) and particulate matter (PM) emissions were the same for the two fuels. This project characterized criteria pollutants and undertook a detailed analysis of PM emissions from a very large crude oil carrier (VLCC) using a distillate ECA fuel (MGO) and novel LSHFO. Results showed emission factors of NO were ∼5% higher with MGO than LSHFO. PM emission factors were ∼3 times higher with LSHFO than MGO, while both were below values reported by Lloyds, U.S. EPA and CARB. A detailed analysis of PM revealed it was >90% organic carbon (OC) for both fuels. Elemental carbon (EC) and soot measured with an AVL microsoot sensor (MSS) reflected black carbon. PM size distributions showed unimodal peaks for both MGO (20-30 nm) and LSHFO (30-50 nm). Particle number (PN) emissions were 28% and 17% higher with the PPS-M compared to the SMPS for LSHFO and MGO, respectively.
[Mh] Termos MeSH primário: Poluentes Atmosféricos
Óleos Combustíveis
[Mh] Termos MeSH secundário: Poluição do Ar
Tamanho da Partícula
Material Particulado
Fuligem
Emissões de Veículos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Fuel Oils); 0 (Particulate Matter); 0 (Soot); 0 (Vehicle Emissions)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170808
[Lr] Data última revisão:
170808
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170105
[St] Status:MEDLINE
[do] DOI:10.1021/acs.est.6b02577


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[PMID]:27863883
[Au] Autor:Periasamy AP; Wu WP; Ravindranath R; Roy P; Lin GL; Chang HT
[Ad] Endereço:Department of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei 106, Taiwan.
[Ti] Título:Polymer/reduced graphene oxide functionalized sponges as superabsorbents for oil removal and recovery.
[So] Source:Mar Pollut Bull;114(2):888-895, 2017 Jan 30.
[Is] ISSN:1879-3363
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Polyurethane dish-washing (PU-DW) sponges are functionalized sequentially with polyethylenimine (PEI) and graphene oxide (GO) to form PEI/reduced graphene oxide (RGO) PU-DW sponges. The PEI/RGO PU-DW sponge consists of PEI/RGO sheets having numerous pores, with diameters ranging from 236 to 254nm. To further enhance hydrophobicity and absorption capacity of oil, PEI/RGO PU-DW sponge is further coated with 20% phenyltrimethoxysilane (PTMOS). The PTMOS/PEI/RGO PU-DW sponge absorbs various oils within 20s, with maximum absorption capacity values of 880% and 840% for bicycle chain oil and motorcycle engine oil, respectively. The absorbed oils were released completely by squeezing or immersed in hexane. The PTMOS/PEI/RGO PU-DW sponge efficiently separates oil/water mixtures through a flowing system. Having the advantages of faster absorption rate, reusability, and low cost, the PTMOS/PEI/RGO PU-DW sponge holds great potential as a superabsorbent for efficient removal and recovery of oil spills as well as for the separation of oil/water mixtures.
[Mh] Termos MeSH primário: Óleos Combustíveis/análise
Grafite/química
Poluição por Petróleo/análise
Poliuretanos/química
Poluentes Químicos da Água/análise
Purificação da Água/métodos
[Mh] Termos MeSH secundário: Adsorção
Interações Hidrofóbicas e Hidrofílicas
Óxidos/química
Porosidade
Propriedades de Superfície
Purificação da Água/instrumentação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fuel Oils); 0 (Oxides); 0 (Polyurethanes); 0 (Water Pollutants, Chemical); 7782-42-5 (Graphite)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161120
[St] Status:MEDLINE


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[PMID]:27858151
[Au] Autor:Alhamdow A; Gustavsson P; Rylander L; Jakobsson K; Tinnerberg H; Broberg K
[Ad] Endereço:Unit of Metals and Health, Institute of Environmental Medicine, Karolinska Institutet, Nobels Väg 13, 171 77, Stockholm, Sweden. ayman.alhamdow@ki.se.
[Ti] Título:Chimney sweeps in Sweden: a questionnaire-based assessment of long-term changes in work conditions, and current eye and airway symptoms.
[So] Source:Int Arch Occup Environ Health;90(2):207-216, 2017 Feb.
[Is] ISSN:1432-1246
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:OBJECTIVES: To explore chimney sweeping work tasks, chimney sweeps' use of protective equipment, and type of fuel used by clients, over time. Further, to assess work-relatedness of current eye and airway symptoms. METHODS: In a cross-sectional study in 2011, male Swedish chimney sweeps (n = 483; age 21-69 years) answered a questionnaire about their occupational history and eye and airway symptoms. RESULTS: Between 1960 and 2010, black-soot-sweeping in private homes was the major task, although it decreased during the time period, for chimney sweeps. Between 1975 and 2010, the use of petroleum oil decreased, whereas the use of pellets and wood increased. Also, the use of gloves and masks increased significantly. Black-soot-sweeping in industry was associated with work-related eye symptoms (prevalence odds ratio POR = 3.76, 95% CI: 1.72-8.24, for every 10% increment of working time, adjusted for age and tobacco smoking). Chimney sweeps also had slightly higher prevalence of cough with increasing black-soot-sweeping (POR = 1.06, 95% CI: 0.99-1.13 for every 10% increment, further adjusted for the use of mask), and the association was more pronounced, although nonsignificant, for black-soot-sweeping in industry (adjusted POR = 1.26, 95% CI: 0.98-1.61). CONCLUSIONS: Chimney sweeping tasks and use of protective equipment as well as type of fuel used by the clients changed significantly over the last 35 years, which may have changed chimney sweeps' exposure to soot. Still, chimney sweeps in Sweden have black-soot-sweeping-related eye and airway symptoms.
[Mh] Termos MeSH primário: Oftalmopatias/epidemiologia
Doenças Profissionais/epidemiologia
Exposição Ocupacional/efeitos adversos
Doenças Respiratórias/epidemiologia
Fuligem/efeitos adversos
[Mh] Termos MeSH secundário: Adulto
Idoso
Tosse/epidemiologia
Óleos Combustíveis
Seres Humanos
Masculino
Meia-Idade
Exposição Ocupacional/estatística & dados numéricos
Equipamento de Proteção Individual/utilização
Inquéritos e Questionários
Suécia/epidemiologia
Madeira
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fuel Oils); 0 (Soot)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161119
[St] Status:MEDLINE
[do] DOI:10.1007/s00420-016-1186-7


  10 / 1290 MEDLINE  
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[PMID]:27847170
[Au] Autor:Pilatti FK; Ramlov F; Schmidt EC; Costa C; Oliveira ER; Bauer CM; Rocha M; Bouzon ZL; Maraschin M
[Ad] Endereço:Plant Morphogenesis and Biochemistry Laboratory, Federal University of Santa Catarina, 88049-900 Florianopolis, Brazil. Electronic address: fernanda.kop@gmail.com.
[Ti] Título:Metabolomics of Ulva lactuca Linnaeus (Chlorophyta) exposed to oil fuels: Fourier transform infrared spectroscopy and multivariate analysis as tools for metabolic fingerprint.
[So] Source:Mar Pollut Bull;114(2):831-836, 2017 Jan 30.
[Is] ISSN:1879-3363
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Fossil fuels, e.g. gasoline and diesel oil, account for substantial share of the pollution that affects marine ecosystems. Environmental metabolomics is an emerging field that may help unravel the effect of these xenobiotics on seaweeds and provide methodologies for biomonitoring coastal ecosystems. In the present study, FTIR and multivariate analysis were used to discriminate metabolic profiles of Ulva lactuca after in vitro exposure to diesel oil and gasoline, in combinations of concentrations (0.001%, 0.01%, 0.1%, and 1.0% - v/v) and times of exposure (30min, 1h, 12h, and 24h). PCA and HCA performed on entire mid-infrared spectral window were able to discriminate diesel oil-exposed thalli from the gasoline-exposed ones. HCA performed on spectral window related to the protein absorbance (1700-1500cm ) enabled the best discrimination between gasoline-exposed samples regarding the time of exposure, and between diesel oil-exposed samples according to the concentration. The results indicate that the combination of FTIR with multivariate analysis is a simple and efficient methodology for metabolic profiling with potential use for biomonitoring strategies.
[Mh] Termos MeSH primário: Monitoramento Ambiental/métodos
Óleos Combustíveis/análise
Metaboloma/efeitos dos fármacos
Ulva/efeitos dos fármacos
[Mh] Termos MeSH secundário: Brasil
Gasolina/análise
Metabolômica
Modelos Teóricos
Análise Multivariada
Análise de Componente Principal
Espectroscopia de Infravermelho com Transformada de Fourier
Ulva/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fuel Oils); 0 (Gasoline)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161117
[St] Status:MEDLINE



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