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Pesquisa : G01.154.090.750 [Categoria DeCS]
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[PMID]:28826029
[Au] Autor:Masondo NA; Kulkarni MG; Finnie JF; Van Staden J
[Ad] Endereço:Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville 3209, South Africa.
[Ti] Título:Influence of biostimulants-seed-priming on Ceratotheca triloba germination and seedling growth under low temperatures, low osmotic potential and salinity stress.
[So] Source:Ecotoxicol Environ Saf;147:43-48, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Extreme temperatures, drought and salinity stress adversely affect seed germination and seedling growth in crop species. Seed priming has been recognized as an indispensable technique in the production of stress-tolerant plants. Seed priming increases seed water content, improves protein synthesis using mRNA and DNA and repair mitochondria in seeds prior to germination. The current study aimed to determine the role of biostimulants-seed-priming during germination and seedling growth of Ceratotheca triloba (Bernh.) Hook.f. (an indigenous African leafy vegetable) under low temperature, low osmotic potential and salinity stress conditions. Ceratotheca triloba seeds were primed with biostimulants [smoke-water (SW), synthesized smoke-compound karrikinolide (KAR ), Kelpak (commercial seaweed extract), phloroglucinol (PG) and distilled water (control)] for 48h at 25°C. Thereafter, primed seeds were germinated at low temperatures, low osmotic potential and high NaCl concentrations. Low temperature (10°C) completely inhibited seed germination. However, temperature shift to 15°C improved germination. Smoke-water and KAR enhanced seed germination with SW improving seedling growth under different stress conditions. Furthermore, priming seeds with Kelpak stimulated percentage germination, while PG and the control treatment improved seedling growth at different PEG and NaCl concentrations. Generally, high concentrations of PEG and NaCl brought about detrimental effects on seed germination and seedling growth. Findings from this study show the potential role of seed priming with biostimulants in the alleviation of abiotic stress conditions during seed germination and seedling growth in C. triloba plants.
[Mh] Termos MeSH primário: Furanos/farmacologia
Germinação/efeitos dos fármacos
Pedaliaceae/efeitos dos fármacos
Piranos/farmacologia
Plântulas/efeitos dos fármacos
Sementes/efeitos dos fármacos
Estresse Fisiológico/efeitos dos fármacos
[Mh] Termos MeSH secundário: Temperatura Baixa
Secas
Osmose
Pedaliaceae/crescimento & desenvolvimento
Salinidade
Plântulas/crescimento & desenvolvimento
África do Sul
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Furans); 0 (Pyrans); 0 (karrikinolide)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170822
[St] Status:MEDLINE


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[PMID]:28452989
[Au] Autor:Labetoulle M; Chiambaretta F; Shirlaw A; Leaback R; Baudouin C
[Ad] Endereço:Service d'Ophtalmologie, CHU Bicêtre, APHP, Université Paris Sud, Paris, France.
[Ti] Título:Osmoprotectants, carboxymethylcellulose and hyaluronic acid multi-ingredient eye drop: a randomised controlled trial in moderate to severe dry eye.
[So] Source:Eye (Lond);31(10):1409-1416, 2017 Oct.
[Is] ISSN:1476-5454
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:PurposeTo assess the safety and efficacy of an eye drop combining osmoprotectants, carboxymethylcellulose and hyaluronic acid (O/CMC/HA) in reducing symptomatic, moderate to severe dry eye, compared with HA.MethodsIn this investigator-masked, randomised study, patients instilled 1-2 drops/eye of O/CMC/HA or HA (2-6 times/day) for 3 months. Primary endpoint: mean change in Global Ocular Staining Score (GOSS) from baseline at day 35. Noninferiority of O/CMC/HA was tested in the per-protocol population; if achieved, superiority was tested in the intent-to-treat population. Secondary efficacy endpoints: mean change from baseline in GOSS, Ocular Surface Disease Index (OSDI), Schirmer score, tear break-up time (TBUT), corneal/conjunctival staining, conjunctival hyperaemia, symptoms, and patient/investigator assessments.ResultsBaseline characteristics were comparable between groups (n=40 each). O/CMC/HA was noninferior (and not superior) to HA based on similar GOSS reductions from baseline at day 35 and month 3 in both groups (P=0.778, day 35, per-protocol population). Overall, O/CMC/HA and HA provided similar reductions in OSDI, Schirmer score, TBUT, corneal staining and hyperaemia from baseline at 35 days (P≥0.155). More patients reported less severe stinging/burning, sandiness/grittiness, and painful/sore eyes at month 3 with O/CMC/HA (P≤0.039), and more rated the dropper bottle easy to use (87.5%), compared with HA (46.2%; P=0.002). Other patient and investigator assessments were similar between groups. O/CMC/HA and HA were well tolerated.ConclusionsO/CMC/HA is noninferior to HA in improving objective signs of dry eye, with potential advantages for subjective symptoms and patient acceptance.
[Mh] Termos MeSH primário: Carboximetilcelulose Sódica/administração & dosagem
Síndromes do Olho Seco/tratamento farmacológico
Ácido Hialurônico/administração & dosagem
Lágrimas/química
[Mh] Termos MeSH secundário: Carboximetilcelulose Sódica/farmacocinética
Relação Dose-Resposta a Droga
Esquema de Medicação
Síndromes do Olho Seco/diagnóstico
Feminino
Seres Humanos
Ácido Hialurônico/farmacocinética
Masculino
Meia-Idade
Soluções Oftálmicas/administração & dosagem
Osmose/efeitos dos fármacos
Índice de Gravidade de Doença
Resultado do Tratamento
Viscossuplementos/administração & dosagem
Viscossuplementos/farmacocinética
[Pt] Tipo de publicação:JOURNAL ARTICLE; MULTICENTER STUDY; RANDOMIZED CONTROLLED TRIAL
[Nm] Nome de substância:
0 (Ophthalmic Solutions); 0 (Viscosupplements); 9004-61-9 (Hyaluronic Acid); K679OBS311 (Carboxymethylcellulose Sodium)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE
[do] DOI:10.1038/eye.2017.73


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[PMID]:28468513
[Au] Autor:Al Ashhab A; Sweity A; Bayramoglu B; Herzberg M; Gillor O
[Ad] Endereço:a Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research , Ben-Gurion University of the Negev , Midreshet Ben Gurion , Israel.
[Ti] Título:Biofouling of reverse osmosis membranes: effects of cleaning on biofilm microbial communities, membrane performance, and adherence of extracellular polymeric substances.
[So] Source:Biofouling;33(5):397-409, 2017 05.
[Is] ISSN:1029-2454
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Laboratory-scale reverse osmosis (RO) flat-sheet systems were used with two parallel flow cells, one treated with cleaning agents and a control (ie undisturbed). The cleaning efforts increased the affinity of extracellular polymeric substances (EPS) to the RO membrane and altered the biofilm surface structure. Analysis of the membrane biofilm community composition revealed the dominance of Proteobacteria. However, within the phylum Proteobacteria, γ-Proteobacteria dominated the cleaned membrane biofilm, while ß-Proteobacteria dominated the control biofilm. The composition of the fungal phyla was also altered by cleaning, with enhancement of Ascomycota and suppression of Basidiomycota. The results suggest that repeated cleaning cycles select for microbial groups that strongly attach to the RO membrane surface by producing rigid and adhesive EPS that hampers membrane performance.
[Mh] Termos MeSH primário: Aderência Bacteriana/efeitos dos fármacos
Biofilmes/efeitos dos fármacos
Incrustação Biológica/prevenção & controle
Detergentes/farmacologia
Membranas Artificiais
Proteobactérias/efeitos dos fármacos
[Mh] Termos MeSH secundário: Ascomicetos/efeitos dos fármacos
Ascomicetos/crescimento & desenvolvimento
Ascomicetos/fisiologia
Filtração
Osmose
Polímeros/química
Proteobactérias/crescimento & desenvolvimento
Purificação da Água/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Detergents); 0 (Membranes, Artificial); 0 (Polymers)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170505
[St] Status:MEDLINE
[do] DOI:10.1080/08927014.2017.1318382


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[PMID]:28778552
[Au] Autor:Nowacka M; Fijalkowska A; Wiktor A; Dadan M; Tylewicz U; Dalla Rosa M; Witrowa-Rajchert D
[Ad] Endereço:Department of Food Engineering and Process Management, Faculty of Food Sciences, Warsaw University of Life Sciences - SGGW, Nowoursynowska 159c, 02-776 Warsaw, Poland. Electronic address: malgorzata_nowacka@sggw.pl.
[Ti] Título:Influence of power ultrasound on the main quality properties and cell viability of osmotic dehydrated cranberries.
[So] Source:Ultrasonics;83:33-41, 2018 Feb.
[Is] ISSN:1874-9968
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The aim of the study was to investigate the effect of ultrasound treatment in two osmotic solutions, carried out at different time, on some physical properties, antioxidant activity and cell survival of cranberries. Ultrasound treatment was conducted at 21kHz for 30 and 60min in liquid medium: 61.5% sucrose solution and 30% sucrose solution with 0.1% steviol glycosides addition. Some samples before the ultrasound treatment were subjected to cutting or blanching. The results showed that dry matter content and concentration of the dissolved substances increased during ultrasound treatment in osmotic solution, however higher value was observed for treatment in 61.5% sucrose solution and for longer time. Water activity and volume of cranberries did not change after the ultrasonic treatment. Combined treatment led to colour and antioxidant activity alterations as well. A cell viability of whole and cut samples decreased after 60min of osmotic treatment and completely lost in the blanched samples.
[Mh] Termos MeSH primário: Sobrevivência Celular/efeitos da radiação
Dessecação/métodos
Conservação de Alimentos/métodos
Qualidade dos Alimentos
Ondas de Choque de Alta Energia
Osmose/efeitos da radiação
Vaccinium macrocarpon/efeitos da radiação
[Mh] Termos MeSH secundário: Sobrevivência Celular/fisiologia
Diterpenos Caurânicos/química
Relação Dose-Resposta à Radiação
Análise de Alimentos
Glucosídeos/química
Dose de Radiação
Sacarose/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Diterpenes, Kaurane); 0 (Glucosides); 0YON5MXJ9P (stevioside); 57-50-1 (Sucrose)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170806
[St] Status:MEDLINE


  5 / 7537 MEDLINE  
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[PMID]:28693863
[Au] Autor:Nowacka M; Fijalkowska A; Dadan M; Rybak K; Wiktor A; Witrowa-Rajchert D
[Ad] Endereço:Department of Food Engineering and Process Management, Faculty of Food Sciences, Warsaw University of Life Sciences - SGGW, Nowoursynowska 159c, 02-776 Warsaw, Poland. Electronic address: malgorzata_nowacka@sggw.pl.
[Ti] Título:Effect of ultrasound treatment during osmotic dehydration on bioactive compounds of cranberries.
[So] Source:Ultrasonics;83:18-25, 2018 Feb.
[Is] ISSN:1874-9968
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The aim of the study was to investigate the influence of ultrasound treatment applied in osmotic solution on bioactive compounds, such as vitamin C, polyphenols, anthocyanins and flavonoids content as well as antioxidant activity in cranberries (Vaccinium oxycoccus). Ultrasound treatment was performed at the frequency of 21kHz for 30 and 60min in two osmotic solutions - 61.5% sucrose and 30% sucrose with an addition of 0.1% of steviol glycosides. Before the ultrasound treatment the material was subjected to cutting or blanching. The obtained results indicated that the influence of ultrasound waves on cranberries depends on a type of bioactive component. The ultrasound treated cranberries as well as the ones subjected to cutting or blanching enhanced by ultrasound were characterized mainly by a lower content of bioactive compounds.
[Mh] Termos MeSH primário: Biopolímeros/química
Biopolímeros/efeitos da radiação
Dessecação/métodos
Osmose/efeitos da radiação
Ondas Ultrassônicas
Vaccinium macrocarpon/química
Vaccinium macrocarpon/efeitos da radiação
[Mh] Termos MeSH secundário: Relação Dose-Resposta à Radiação
Conservação de Alimentos/métodos
Dose de Radiação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biopolymers)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170712
[St] Status:MEDLINE


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[PMID]:28744670
[Au] Autor:Lema I; Amazit L; Lamribet K; Fagart J; Blanchard A; Lombès M; Cherradi N; Viengchareun S
[Ad] Endereço:Inserm U1185, Faculté de Médecine Paris-Sud, Université Paris-Saclay, 63 rue Gabriel Peri, 94276, Le Kremlin-Bicêtre, France.
[Ti] Título:RNA-binding protein HuR enhances mineralocorticoid signaling in renal KC3AC1 cells under hypotonicity.
[So] Source:Cell Mol Life Sci;74(24):4587-4597, 2017 12.
[Is] ISSN:1420-9071
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Mineralocorticoid receptor (MR) mediates the sodium-retaining action of aldosterone in the distal nephron. Herein, we decipher mechanisms by which hypotonicity increases MR expression in renal principal cells. We identify HuR (human antigen R), an mRNA-stabilizing protein, as an important posttranscriptional regulator of MR expression. Hypotonicity triggers a rapid and reversible nuclear export of HuR in renal KC3AC1 cells, as quantified by high-throughput microscopy. We also identify a key hairpin motif in the 3'-untranslated region of MR transcript, pivotal for the interaction with HuR and its stabilizing function. Next, we show that hypotonicity increases MR recruitment onto Sgk1 promoter, a well-known MR target gene, thereby enhancing aldosterone responsiveness. Our data shed new light on the crucial role of HuR as a stabilizing factor for the MR transcript and provide evidence for a short autoregulatory loop in which expression of a nuclear receptor transcriptionally regulating water and sodium balance is controlled by osmotic tone.
[Mh] Termos MeSH primário: Proteína Semelhante a ELAV 1/metabolismo
Rim/metabolismo
Mineralocorticoides/metabolismo
Pressão Osmótica/fisiologia
Proteínas de Ligação a RNA/metabolismo
Receptores de Mineralocorticoides/metabolismo
Transdução de Sinais/fisiologia
[Mh] Termos MeSH secundário: Regiões 3' não Traduzidas/genética
Transporte Ativo do Núcleo Celular/genética
Aldosterona/metabolismo
Regulação da Expressão Gênica/genética
Células HEK293
Seres Humanos
Proteínas Imediatamente Precoces/metabolismo
Rim/fisiologia
Osmose/fisiologia
Regiões Promotoras Genéticas/genética
Proteínas Serina-Treonina Quinases/metabolismo
Processamento Pós-Transcricional do RNA/genética
RNA Mensageiro/metabolismo
Transcrição Genética/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (3' Untranslated Regions); 0 (ELAV-Like Protein 1); 0 (ELAVL1 protein, human); 0 (Immediate-Early Proteins); 0 (Mineralocorticoids); 0 (RNA, Messenger); 0 (RNA-Binding Proteins); 0 (Receptors, Mineralocorticoid); 4964P6T9RB (Aldosterone); EC 2.7.11.1 (Protein-Serine-Threonine Kinases); EC 2.7.11.1 (serum-glucocorticoid regulated kinase)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:180131
[Lr] Data última revisão:
180131
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170727
[St] Status:MEDLINE
[do] DOI:10.1007/s00018-017-2594-x


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[PMID]:27773258
[Au] Autor:Barman N; Badwaik LS
[Ad] Endereço:Department of Food Engineering and Technology, School of Engineering, Tezpur University, Napaam, Assam, India.
[Ti] Título:Effect of ultrasound and centrifugal force on carambola (Averrhoa carambola L.) slices during osmotic dehydration.
[So] Source:Ultrason Sonochem;34:37-44, 2017 01.
[Is] ISSN:1873-2828
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Osmotic dehydration (OD) of carambola slices were carried out using glucose, sucrose, fructose and glycerol as osmotic agents with 70°Bx solute concentration, 50°C of temperature and for time of 180min. Glycerol and sucrose were selected on the basis of their higher water loss, weight reduction and lowers solid gain. Further the optimization of OD of carambola slices (5mm thick) were carried out under different process conditions of temperature (40-60°C), concentration of sucrose and glycerol (50-70°Bx), time (180min) and fruit to solution ratio (1:10) against various responses viz. water loss, solid gain, texture, rehydration ratio and sensory score according to a composite design. The optimized value for temperature, concentration of sucrose and glycerol has been found to be 50°C, 66°Bx and 66°Bx respectively. Under optimized conditions the effect of ultrasound for 10, 20, 30min and centrifugal force (2800rpm) for 15, 30, 45 and 60min on OD of carambola slices were checked. The controlled samples showed 68.14% water loss and 13.05% solid gain in carambola slices. While, the sample having 30min ultrasonic treatment showed 73.76% water loss and 9.79% solid gain; and the sample treated with centrifugal force for 60min showed 75.65% water loss and 6.76% solid gain. The results showed that with increasing in treatment time the water loss, rehydration ratio were increased and solid gain, texture were decreased.
[Mh] Termos MeSH primário: Averrhoa/química
Centrifugação
Osmose
Ondas Ultrassônicas
Água/química
[Mh] Termos MeSH secundário: Paladar
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
059QF0KO0R (Water)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180131
[Lr] Data última revisão:
180131
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE


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[PMID]:27776465
[Au] Autor:Hey T; Bajraktari N; Vogel J; Hélix Nielsen C; la Cour Jansen J; Jönsson K
[Ad] Endereço:a VA SYD , Malmö , Sweden.
[Ti] Título:The effects of physicochemical wastewater treatment operations on forward osmosis.
[So] Source:Environ Technol;38(17):2130-2142, 2017 Sep.
[Is] ISSN:0959-3330
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Raw municipal wastewater from a full-scale wastewater treatment plant was physicochemically pretreated in a large pilot-scale system comprising coagulation, flocculation, microsieve and microfiltration operated in various configurations. The produced microsieve filtrates and microfiltration permeates were then concentrated using forward osmosis (FO). Aquaporin Inside FO membranes were used for both the microsieve filtrate and microfiltration permeates, and Hydration Technologies Inc.-thin-film composite membranes for the microfiltration permeate using only NaCl as the draw solution. The FO performance was evaluated in terms of the water flux, water flux decline and solute rejections of biochemical oxygen demand, and total and soluble phosphorus. The obtained results were compared with the results of FO after only mechanical pretreatment. The FO permeates satisfied the Swedish discharge demands for small and medium-sized wastewater treatment plants. The study demonstrates that physicochemical pretreatment can improve the FO water flux by up to 20%. In contrast, the solute rejection decreases significantly compared to the FO-treated wastewater with mechanical pretreatment.
[Mh] Termos MeSH primário: Águas Residuais
Purificação da Água
[Mh] Termos MeSH secundário: Membranas Artificiais
Osmose
Fósforo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Membranes, Artificial); 0 (Waste Water); 27YLU75U4W (Phosphorus)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180105
[Lr] Data última revisão:
180105
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161026
[St] Status:MEDLINE
[do] DOI:10.1080/09593330.2016.1246616


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[PMID]:28455341
[Au] Autor:Garby TJ; Matys ED; Ongley SE; Salih A; Larkum AWD; Walter MR; Summons RE; Neilan BA
[Ad] Endereço:Australian Centre for Astrobiology and School of Biotechnology and Biomolecular Sciences, The University of New South Wales, Sydney, NSW, Australia.
[Ti] Título:Lack of Methylated Hopanoids Renders the Cyanobacterium Nostoc punctiforme Sensitive to Osmotic and pH Stress.
[So] Source:Appl Environ Microbiol;83(13), 2017 Jul 01.
[Is] ISSN:1098-5336
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:To investigate the function of 2-methylhopanoids in modern cyanobacteria, the gene coding for the radical -adenosyl methionine (SAM) methylase protein that acts on the C-2 position of hopanoids was deleted from the filamentous cyanobacterium ATCC 29133S. The resulting Δ mutant lacked all 2-methylhopanoids but was found to produce much higher levels of two bacteriohopanepentol isomers than the wild type. Growth rates of the Δ mutant cultures were not significantly different from those of the wild type under standard growth conditions. Akinete formation was also not impeded by the absence of 2-methylhopanoids. The relative abundances of the different hopanoid structures in akinete-dominated cultures of the wild-type and Δ mutant strains were similar to those of vegetative cell-dominated cultures. However, the Δ mutant was found to have decreased growth rates under both pH and osmotic stress, confirming a role for 2-methylhopanoids in stress tolerance. Evidence of elevated photosystem II yield and NAD(P)H-dependent oxidoreductase activity in the Δ mutant under stress conditions, compared to the wild type, suggested that the absence of 2-methylhopanoids increases cellular metabolic rates under stress conditions. As the first group of organisms to develop oxygenic photosynthesis, are central to the evolutionary history of life on Earth and the subsequent oxygenation of the atmosphere. To investigate the origin of cyanobacteria and the emergence of oxygenic photosynthesis, geobiologists use biomarkers, the remnants of lipids produced by different organisms that are found in geologic sediments. 2-Methylhopanes have been considered indicative of cyanobacteria in some environmental settings, with the parent lipids 2-methylhopanoids being present in many contemporary cyanobacteria. We have created a Δ mutant strain that does not produce 2-methylhopanoids to assess the influence of 2-methylhopanoids on stress tolerance. Increased metabolic activity in the mutant under stress indicates compensatory alterations in metabolism in the absence of 2-methylhopanoids.
[Mh] Termos MeSH primário: Nostoc/metabolismo
Triterpenos/metabolismo
[Mh] Termos MeSH secundário: Proteínas de Bactérias/genética
Proteínas de Bactérias/metabolismo
Concentração de Íons de Hidrogênio
Isomerismo
Metilação
Nostoc/química
Nostoc/genética
Nostoc/crescimento & desenvolvimento
Osmose
Triterpenos/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bacterial Proteins); 0 (Triterpenes)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171225
[Lr] Data última revisão:
171225
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170430
[St] Status:MEDLINE


  10 / 7537 MEDLINE  
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[PMID]:27776229
[Au] Autor:Li J; Niu A; Lu CJ; Zhang JH; Junaid M; Strauss PR; Xiao P; Wang X; Ren YW; Pei DS
[Ad] Endereço:Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
[Ti] Título:A novel forward osmosis system in landfill leachate treatment for removing polycyclic aromatic hydrocarbons and for direct fertigation.
[So] Source:Chemosphere;168:112-121, 2017 Feb.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Landfill leachate (LL) is harmful to aquatic environment because it contains high concentrations of dissolved organic matter, inorganic components, heavy metals, and other xenobiotics. Thus, the remediation of LL is crucial for environmental conservation. Here, a potential application of the forward osmosis (FO) filtration process with ammonium bicarbonate (NH HCO ) as a draw solution (DS) was investigated to remediate membrane bioreactor-treated LL (M-LL). After the leachate treatment, the toxicity and removal efficiencies of polycyclic aromatic hydrocarbons (PAHs) were evaluated using zebrafish and cultured human cells. The water recovery rate was improved using the current protocol up to 86.6% and 91.6% by both the pressure retarded osmosis (PRO) mode and the forward osmosis (FO) mode. Water flux increased with the increasing DS concentrations, but solution velocities decreased with the operation time. Toxicity tests revealed that the M-LL treated by NH HCO had no toxic effect on zebrafish and human cells. Moreover, green fluorescent protein (GFP) expression in the transgenic zebrafish Tg(cyp1a:gfp) induced by PAHs was very weak compared to the effects induced by untreated M-LL. Since the diluted DS met local safety requirements of liquid fertilizer, it could be directly applied as the liquid fertilizer for fertigation. In conclusion, this novel FO system using NH HCO as the DS provides a cheap and efficient protocol to effectively remove PAHs and other pollutants in LL, and the diluted DS can be directly applied to crops as a liquid fertilizer, indicating that this technique is effective and eco-friendly for the treatment of different types of LL.
[Mh] Termos MeSH primário: Fertilizantes/análise
Filtração/métodos
Hidrocarbonetos Aromáticos Policíclicos/análise
Poluentes Químicos da Água/análise
Purificação da Água/métodos
[Mh] Termos MeSH secundário: Animais
Bicarbonatos/química
Reatores Biológicos
Proliferação Celular/efeitos dos fármacos
Sobrevivência Celular/efeitos dos fármacos
Embrião não Mamífero/efeitos dos fármacos
Células HEK293
Seres Humanos
Membranas Artificiais
Osmose
Hidrocarbonetos Aromáticos Policíclicos/toxicidade
Soluções
Testes de Toxicidade
Poluentes Químicos da Água/toxicidade
Peixe-Zebra/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bicarbonates); 0 (Fertilizers); 0 (Membranes, Artificial); 0 (Polycyclic Aromatic Hydrocarbons); 0 (Solutions); 0 (Water Pollutants, Chemical); 45JP4345C9 (ammonium bicarbonate)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171212
[Lr] Data última revisão:
171212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE



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