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Palavra-chave Bioremediation (66) Biodegradation (6) Heavy metals (5) Soil (5) Herbicide (4) Bioaugmentation (3) Biomass (2) Biorremediación (2) Biosorption (2) Biostimulation (2) Cadmium (2) Copper and silver removal (2) Diesel oil (2) Fungi (2) Laccase (2) Microalgae (2) PAH (2) Phosphate solubilization (2) Polycyclic aromatic hydrocarbons (PAHs) (2) Response surface methodology (2) Mais... Tipo do documento Info:eu-repo/semantics/article (47) Journal article (10) Text (3) Conference Paper or Presentation (1) Folders (1) Info:eu-repo/semantics/other (1) Journal Contribution (1) Mais... Ano 2021 (1) 2020 (1) 2019 (3) 2018 (3) 2017 (5) 2016 (3) 2015 (6) 2014 (9) 2013 (2) 2012 (3) 2011 (2) 2010 (7) 2009 (6) 2008 (4) 2007 (4) 2006 (1) 2004 (2) 2003 (1) 2002 (2) 2000 (1) Mais... País Brazil (48) Chile (10) France (3) Mexico (2) Argentina (1) Belgium (1) United States (1) Mais... Idioma Inglês (63) Espanhol (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 66 Primeira ... 1 2 3 4 ... Última Vertical variation of atrazine mineralization capacity in soils Agriscientia (Córdoba) Hang,S.; Houot,S.; Barriuso,E.. The variation of atrazine mineralization capacity was investigated in two soil profiles selected with (adapted soil) and without (non-adapted soil) atrazine application history in Córdoba, Argentina. Atrazine evolution was characterized by balance of 14C-U-ring atrazine radioactivity between mineralized, extractable and non-extractable fractions by means of incubations under laboratory conditions in two soil situations: with dry heat treatment (T105) and without heat treatment (Control). The strong decrease of atrazine mineralization after microbial inactivation during all the incubation period in adapted soil suggests that the atrazine degraders were distributed throughout the entire adapted soil profile and were responsible for atrazine mineralization in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Atrazine mineralization; Adapted sub-soil; Microbial inactivation; Bioremediation. Ano: 2007 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-298X2007000200004 Exploring biochemical diversity in bacteria Anais da ABC (AABC) WEISSENBACH,JEAN. Abstract Abstract: The various descriptors of biochemical diversity and an evaluation of its status of knowledge are briefly outlined. Using a few examples from in house research projects, I illustrate strategies used to increase this knowledge. Because bacteria represent an extremely diverse domain of life and carry out the widest known range of biochemical transformations, this mini-review focusses on bacteria. Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacterial metabolism; Biochemical function; Enzyme discovery; Genome annotation; Bioremediation. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000600605 Action of Canavalia ensiformis in remediation of contaminated soil with sulfentrazone Bragantia Madalão,João Carlos; Souza,Matheus Freitas de; Silva,Alberto Antônio; Silva,Daniel Valadão; Jakelaitis,Adriano; Pereira,Gustavo Antônio Mendes. ABSTRACT This study evaluated the jack bean (Canavalia ensiformis) as a potential remediator of sulfentrazone in the soil. The experiment was conducted under field conditions in a complete randomised block design. The treatments consisted of soils with and without herbicide application as well as the absence and presence of C. ensiformis cultivation associated with incorporation into the soil or the removal of shoots of C. ensiformis. Sorghum was planted as a bioindicator to evaluate the remediation efficiency of jack bean. Sulfentrazone application in areas without C. ensiformis cultivation decreased plants stands, productivity, and height of sorghum compared to treatments where C. ensiformis was cultivated. Sorghum cultivated in succession to C.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioremediation; Soil decontamination; Herbicides; Residue; Contamination. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000200292 Selection of microorganisms degrading S-Metolachlor herbicide BABT Martins,Paula Fabiane; Martinez,Camila Ortiz; Carvalho,Giselle de; Carneiro,Paulo Irajara Borba; Azevedo,Ricardo Antunes; Pileggi,Sônia Alvim Veiga; Melo,Itamar Soares de; Pileggi,Marcos. The aim of this work was to study herbicide degradation through selected microorganisms from humus and soil subjected to different plantation systems. The following bacterial species were identified: Klebsiella pneumoniae pneumoniae GC s.B strain 1, Pseudomonas alcaligenes, Enterobacter aerogenes GC s.A and Klebsiella pneumoniae pneumoniae GC s.B strain 2. Growth studies yet suggested the possibility of a very long lag phase. Although, culture with the herbicide presented biofilm formation and there were color changes in the herbicide that could have interfered with the espectrophotometry readings. After 5 days of incubation at 35ºC, the difference in the concentration of herbicide was 14.42% on average and after 10 days, 35.01%. Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioremediation; Biodegradation; S-Metolachlor; Herbicide. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000100019 Bioremediation of herbicide velpar K® in vitro in aqueous solution with application of EM-4 (effective microorganisms) BABT Ramos,Márcio Antônio Gomes; Yoshioka,Sergio Akinobu. This work assessed the bioremediation of herbicide Velpar K®, in vitro in aqueous solution, used against weeds in sugar cane in São Paulo state. The herbicide contained Hexazinone and Diuron. It was used the microbial inoculant denominated Effective Microorganisms (EM-4), pool of microorganisms from soil that contained lactic and photosynthetic bacteria, fungi, yeasts and actinomycetes for bioremediation. Results for the depth of cultivation on agar-agar inoculated with EM-4 showed the microorganisms growth in the concentrations between 0.2% and 1.0% of the Velpar K®in the gel. The analysis of high performance liquid chromatography (HPLC) showed that the EM-4 was effective for the bioremediation of the herbicide, which reached the values of 80% for diuron... Tipo: Info:eu-repo/semantics/article Palavras-chave: Velpar K®; Herbicide; Bioremediation; Effective microorganisms. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000100018 Physiological Characterization of Fungal Inoculum for Biotechnological Remediation of Soils BABT Ballaminut,Nara; Machado,Kátia Maria Gomes; Oliveira,Luisa Helena dos Santos; Matheus,Dácio Roberto. The aim of this work was to study the bioremediating potential of Lentinus crinitus CCIBt2611 according to the physiological condition of the inoculum. Inoculum was prepared using sugarcane ground husk (C:N 90), at several physiological ages and applied in soil contaminated with pentachlorophenol. The inoculum's potential was assessed by evaluating the mycelium's vigor at soil's colonization, determination of peroxidase and phenoloxidase activities, in vitro degradation of Remazol Brilliant Blue R and in vivo degradation of pentachlorophenol. The results showed that the assessed parameters were relevant to identify the quality of the inoculum. For L. crinitus, 10 day old inoculum showed good soil-colonization speed with significant enzymatic activities,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Laccase; Manganese-dependent peroxidase; Organochlorine degradation; Fungal inoculum quality; Bioremediation; Environmental sanitization. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000400561 Isolation of diuron-degrading bacteria from treated soil BABT Dellamatrice,Priscila Maria; Monteiro,Regina Teresa Rosim. Studies were carried out on the isolation of diuron-degrading bacteria from treated soil. The mineralization of 14C-diuron in soil following a three-year application and in soil without previous application were 68.95 mug.100 g-1 and 24.16 mug.100 g-1, respectively, after a 64-day incubation period. In the first soil there was a significant increase in the number of bacteria, from 3.3 x 10 6 to 1.9 x 10(8). The microbial biomass did not change, however, a significant 14C-residue of diuron was found in the microbial biomass. A consortium of three bacteria, Acinetobacter johnsonii and two Bacillus spp., was isolated in medium containing diuron as the only carbon source. Only A. johnsonii was able to grow alone in medium with diuron as the only carbon source. Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodegradation; Biomass; Enhanced degradation; Diuron; Acinetobacter; Bioremediation. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000600020 Phenotypic Characterization and Synthesis of Extracellular Catecholase from a Newly Isolated Bacterium Pseudomonas sp. BSC-6 BABT Lugani,Yogita; Kauldhar,Baljinder Singh; Kaur,Navneet; Sooch,Balwinder Singh. Abstract Catecholase (EC 1.10.3.1), an oxidoreductase enzyme is a key member of polyphenol oxidase family which catalyze the degradation of catechol. This enzyme possesses vast applications in diverse areas and is found in bacteria, fungi, mushrooms, higher plants, arthropods, amphibians and mammals. Catechol, a phenolic compound, is used as a starting material in the synthesis of various industrial compounds such as inhibitors, antioxidants, pesticides etc. The release of this phenolic compound in the environment causes toxicity to both flora and fauna. In the present studies, emphasis has been laid on isolation, screening and characterization of catechol degrading bacterium coupled with synthesis of catecholase enzyme. Further, the selected isolated... Tipo: Info:eu-repo/semantics/article Palavras-chave: Catecholase; Catechol; Polyphenol oxidase; Pseudomonas sp. BSC-6; Bioremediation. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100216 Reducing COD level on oily effluent by utilizing biosurfactant-producing bacteria BABT Jacobucci,Daniela Franco Carvalho; Oriani,Maria Raquel de Godoy; Durrant,Lucia Regina. Two bacteria isolated from crude oil contaminated soil, Pantoea agglomerans and Planococcus citreus, produced biosurfactants utilizing 1.5% of kerosene and olive oil as the sole carbon sources, respectively. The bacteria and the biosurfactants produced were introduced to oily effluent, arising from margarine and soap industry. Emulsification activities were determined by increases in the absorbance of the oil-in-water emulsions at 610 nm, whereas the water-in-oil emulsions were expressed as the height (cm) of the emulsion layers formed. The 72 h incubation experiment resulted in a COD (Chemical Oxygen Demand) reduction of 76% with Planococcus citreus strain and 70% with Pantoea agglomerans.The COD reduction with bacterial biosurfactants was over 50% in 24... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biosurfactants; Bacteria; COD; Oily effluent; Bioremediation. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400029 Characterization and Metal Detoxification Potential of Moderately Thermophilic Bacillus cereus from Geothermal Springs of Himalaya BABT Ghalib,Aslam Khan; Yasin,Muhammad; Faisal,Muhammad. Two thermophilic Bacillus cereus strains (B. cereus-TA2 and B. cereus-TA4) used in the present study were isolated from the geothermal spring of Hunza valley, Gilgit, Pakistan. They showed the ability to withstand and grow at high temperature (85°C). Both these strains could resist multiple metals (copper, cadmium, mercury, manganese, zinc, arsenic, chromium and selenium). Strain B. cereus-TA4 reduced Cr (VI) at pH 5.0 to 9.0 but maximum reduction (83%) was observed at pH 7.0 after 48 h when initially supplied with 200 µg mL-1of K2CrO4. Lower initial concentrations such as 100 µg mL-1 supported higher reduction (90 to 95%) than that of high concentration such as 500 µg mL-1 (20 to 30%). Both the strains reduced nearly 70% of Se (IV) after 48 h of growth at... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromium; Bioremediation; Selenium; Heavy metals. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000400554 Production and characterization of surface-active compounds from Gordonia amicalis BABT Jackisch-Matsuura,Ani Beatriz; Santos,Leonardo Silva; Eberlin,Marcos Nogueira; Faria,Andréia Fonseca de; Matsuura,Takeshi; Grossman,Matthew James; Durrant,Lucia Regina. Two methods were used to make crude preparations of surface-active compounds (SACs) produced by Gordonia amicalis grown on the medium containing 1% diesel oil. Using a 2:1 (v/v) solution of chloroform:methanol for extraction, Type I SACs were isolated and shown to produce oil in water (O/W) emulsions. Type II SACs were isolated by precipitation with ammonium sulfate and produced predominantly water in oil emulsions (W/O). The crude Type I and II preparations were able to produce a significant reduction in the surface tension of water; however, the crude Type II preparation had 10-25 fold higher emulsification activity than the Type I preparation. Both SAC preparations were analyzed by the TLC and each produced two distinct bands with Rf 0.44 and 0.62 and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioemulsifier; Bioremediation; Biosurfactant; Gordonia amicalis; Industrial chemicals; Microbial surfactant production. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000100019 Comparison of biostimulation and bioaugmentation techniques for the remediation of used motor oil contaminated soil BABT Abdulsalam,Surajudeen; Omale,Adaji Benjamin. This study was carried out on the bioremediation of used motor oil contaminated soil artificially contaminated to a pollutant level of 40,000ppm using biostimulation and bioaugmentation remediation techniques for 42 days. Four treatment options were investigated in wooden microcosms: Control (T1), water amended (T2), biostimulation (T3) and hybrid of biostimulation and bioaugmentation (T4). The effectiveness of bioremediation processes were monitored using the total petroleum hydrocarbon removal (TPH) and total bacterial count (TBC). T3 had the highest TPH removal rate (69.2±0.05%), followed by T4 (65.2±0.25%) and T2 (58.4±0.5%); the control (T1) had the lowest TPH removal rate (43.2±1.5%). TBC revealed that bioremediation actually took place; T4 had the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioremediation; Biostimulation; Bioaugmentation; TPH; Used motor oil; Wooden microcosms. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300027 Investigation about the efficiency of the bioaugmentation technique when applied to diesel oil contaminated soils BABT Mariano,Adriano Pinto; Angelis,Dejanira de Franceschi de; Pirôllo,Maria Paula Santos; Contiero,Jonas; Bonotto,Daniel Marcos. This work investigated the efficiency of the bioaugmentation technique when applied to diesel oil contaminated soils collected at three service stations. Batch biodegradation experiments were carried out in Bartha biometer flasks (250 mL) used to measure the microbial CO2 production. Biodegradation efficiency was also measured by quantifying the concentration of hydrocarbons. In addition to the biodegradation experiments, the capability of the studied cultures and the native microorganisms to biodegrade the diesel oil purchased from a local service station, was verified using a technique based on the redox indicator 2,6 -dichlorophenol indophenol (DCPIP). Results obtained with this test showed that the inocula used in the biodegradation experiments were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioremediation; Bioaugmentation; Soil; Diesel oil; Service station. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500030 Biosurfactant Production by Bacillus strains isolated from sugar cane mill wastewaters BABT Santos,Elane Cristina Lourenço dos; Miranda,Daniele Alves dos Reis; Silva,Amanda Lys dos Santos; López,Ana Maria Queijeiro. Abstract Biosurfactants possess diverse chemical properties and provide important characteristics to the producing microorganisms, which can act as surface-actives and emulsifiers of hydrocarbon and others water insoluble substances. Most of them are lipopeptides synthetized by Bacillus. This study evaluated the biosurfactant production by strains of Bacillus previously obtained from liquid residues of sugar-alcohol industry. The bacterial isolates LBPMA: BSC, BSD, J1, J2 and L1 were cultivated in medium that induces production of biosurfactants (Landy medium). During 48 h of incubation, at intervals of 12 h, the total contents of proteins, reducing carbohydrates and surfactant activity of the filtrated growth media free of cells were evaluated. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Emulsification; Oil dispersion; Lubricant oil waste; Bioremediation. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100700 The use of vinasse as an amendment to ex-situ bioremediation of soil and groundwater contaminated with diesel oil BABT Mariano,Adriano Pinto; Crivelaro,Sérgio Henrique Rezende; Angelis,Dejanira de Franceschi de; Bonotto,Daniel Marcos. This work investigated the possibility of using vinasse as an amendment in ex-situ bioremediation processes. Groundwater and soil samples were collected at petrol stations. The soil bioremediation was simulated in Bartha biometer flasks, used to measure the microbial CO2 production, during 48 days, where vinasse was added at a concentration of 33 mL.Kg-1of soil. Biodegradation efficiency was also measured by quantifying the total petroleum hydrocarbons (TPH) by gas chromatography. The groundwater bioremediation was carried out in laboratory experiments simulating aerated (bioreactors) and not aerated (BOD flasks) conditions. In both the cases, the concentration of vinasse was 5 % (v/v) and different physicochemical parameters were evaluated during 20 days.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioremediation; Soil; Groundwater; Diesel oil; Biostimulation; Vinasse. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400030 Bioremediation of dyes by fungi isolated from contaminated dye effluent sites for bio-usability BJM Rani,Babita; Kumar,Vivek; Singh,Jagvijay; Bisht,Sandeep; Teotia,Priyanku; Sharma,Shivesh; Kela,Ritu. Biodegradation and detoxification of dyes, Malachite green, Nigrosin and Basic fuchsin have been carried out using two fungal isolates Aspergillus niger, and Phanerochaete chrysosporium, isolated from dye effluent soil. Three methods were selected for biodegradation, viz. agar overlay and liquid media methods; stationary and shaking conditions at 25 °C. Aspergillus niger recorded maximum decolorization of the dye Basic fuchsin (81.85%) followed by Nigrosin (77.47%), Malachite green (72.77%) and dye mixture (33.08%) under shaking condition. Whereas, P. chrysosporium recorded decolorization to the maximum with the Nigrosin (90.15%) followed by Basic fuchsin (89.8%), Malachite green (83.25%) and mixture (78.4%). The selected fungal strains performed better... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioremediation; Dyes; Fungi; Microbial bioassay; Seed germination. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300039 Laboratory study on the bioremediation of diesel oil contaminated soil from a petrol station BJM Mariano,Adriano Pinto; Kataoka,Ana Paula de Arruda Geraldes; Angelis,Dejanira de Franceschi de; Bonotto,Daniel Marcos. The purpose of the present study was to investigate possible methods to enhance the rate of aerobic biodegradation of hydrocarbons (ex-situ treatments). In this work, the bioremediation processes were applied to a sandy soil with a high level of contamination originated from the leakage of a diesel oil underground storage tank at a petrol station. Laboratory scale experiments (Bartha biometer flasks) were used to evaluate the biodegradation of the diesel oil. Enhancement of biodegradation was carried out through biostimulation (addition of nitrogen and phosphorus solutions or Tween 80 surfactant) and bioaugmentation (bacterial consortium isolated from a landfarming system). To investigate interactions between optimizing factors, and to find the right... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioremediation; Soil; Diesel Oil; Petrol Station. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000200030 Heavy metal resistance of microorganisms isolated from coal mining environments of Santa Catarina BJM Castro-Silva,Marcus Adonai; Lima,André Oliveira de Souza; Gerchenski,Ana Valéria; Jaques,Daniela Batista; Rodrigues,André Luis; Souza,Pricila Lima de; Rörig,Leonardo Rubi. The coal mining activity is characterized by the generation of large amount of by-products. One of them is pyrite, which tends to acidify the water, solubilizing heavy metals. As a consequence the environment becomes acid and rich in heavy metals, selecting microorganisms able to survive in this condition, which are of great interest as bioremediation agents. This work describes the isolation and characterization of microorganisms from a coal mining area in Santa Catarina. These microorganisms comprised bacteria, fungi and yeasts resistant to zinc, nickel and cadmium. Tipo: Info:eu-repo/semantics/article Palavras-chave: Heavy metal resistance; Coal mining; Acidophilic microorganisms; Bioremediation. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000500015 Bioemulsifier production by Microbacterium sp. strains isolated from mangrove and their application to remove cadmiun and zinc from hazardous industrial residue BJM Aniszewski,Erick; Peixoto,Raquel Silva; Mota,Fábio Faria; Leite,Selma Gomes Ferreira; Rosado,Alexandre Soares. The contamination of ecosystems with heavy metals is an important issue in current world and remediation technologies should be in according to environmental sustainability concept. Bioemulsifier are promising agents to be used in metal removal and could be effective to many applications in environmental industries. The aims of this work was screening the potential production of bioemulsifier by microorganisms isolated from an oil contaminated mangrove, and evaluate cadmium and zinc removal potential of those strains from a hazardous industrial residue. From that, bioemulsifier-producing bacteria were isolated from urban mangrove sediments. Four isolates were identified as Microbacterium sp by 16S rRNA analysis and were able to reduce up to 53.3% of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biosemulsifier; Heavy metals; Zinc; Cadmium; Microbacterium; Bioremediation. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000100033 Analysis for the presence of determinants involved in the transport of mercury across bacterial membrane from polluted water bodies of India BJM Jan,Arif Tasleem; Azam,Mudsser; Choi,Inho; Ali,Arif; Haq,Qazi Mohd. Rizwanul. Abstract Mercury, which is ubiquitous and recalcitrant to biodegradation processes, threatens human health by escaping to the environment via various natural and anthropogenic activities. Non-biodegradability of mercury pollutants has necessitated the development and implementation of economic alternatives with promising potential to remove metals from the environment. Enhancement of microbial based remediation strategies through genetic engineering approaches provides one such alternative with a promising future. In this study, bacterial isolates inhabiting polluted sites were screened for tolerance to varying concentrations of mercuric chloride. Following identification, several Pseudomonas and Klebsiella species were found to exhibit the highest... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioremediation; Mercury; Resistance determinants; Mercury transport. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000100055 Registros recuperados: 66 Primeira ... 1 2 3 4 ... Última

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