Literatura académica sobre el tema "Ethylphenol"

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Artículos de revistas sobre el tema "Ethylphenol"

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Betz, Richard, Peter Klüfers, and Peter Mayer. "4-Ethylphenol." Acta Crystallographica Section E Structure Reports Online 65, no. 3 (2009): o544. http://dx.doi.org/10.1107/s1600536809005108.

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Wöhlbrand, Lars, Heinz Wilkes, Thomas Halder, and Ralf Rabus. "Anaerobic Degradation of p-Ethylphenol by “Aromatoleum aromaticum” Strain EbN1: Pathway, Regulation, and Involved Proteins." Journal of Bacteriology 190, no. 16 (2008): 5699–709. http://dx.doi.org/10.1128/jb.00409-08.

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ABSTRACT The denitrifying “Aromatoleum aromaticum” strain EbN1 was demonstrated to utilize p-ethylphenol under anoxic conditions and was suggested to employ a degradation pathway which is reminiscent of known anaerobic ethylbenzene degradation in the same bacterium: initial hydroxylation of p-ethylphenol to 1-(4-hydroxyphenyl)-ethanol followed by dehydrogenation to p-hydroxyacetophenone. Possibly, subsequent carboxylation and thiolytic cleavage yield p-hydroxybenzoyl-coenzyme A (CoA), which is channeled into the central benzoyl-CoA pathway. Substrate-specific formation of three of the four pro
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Majer, Sean H., and Joseph M. Tanski. "4-Chloro-3-ethylphenol." Acta Crystallographica Section E Structure Reports Online 70, no. 7 (2014): o801. http://dx.doi.org/10.1107/s1600536814013919.

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The title compound, C8H9ClO, packs with two independent molecules in the asymmetric unit, without significant differences in corresponding bond lengths and angles, with the ethyl group in each oriented nearly perpendicular to the aromatic ring having ring-to-side chain torsion angles of 81.14 (18) and −81.06 (19)°. In the crystal, molecules form an O—H...O hydrogen-bonded chain extending along theb-axis direction, through the phenol groups in which the H atoms are disordered. These chains pack together in the solid state, giving a sheet lying parallel to (001),viaan offset face-to-face π-stack
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Zhou, Peizheng, and Billy L. Crynes. "Thermolytic reactions of o-ethylphenol." Industrial & Engineering Chemistry Process Design and Development 25, no. 4 (1986): 898–907. http://dx.doi.org/10.1021/i200035a011.

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Reeve, C. D., M. A. Carver, and D. J. Hopper. "Stereochemical aspects of the oxidation of 4-ethylphenol by the bacterial enzyme 4-ethylphenol methylenehydroxylase." Biochemical Journal 269, no. 3 (1990): 815–19. http://dx.doi.org/10.1042/bj2690815.

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The O2-independent hydroxylase 4-ethylphenol methylenehydroxylase (4EPMH) from Pseudomonas putida JD1 catalysed the complete conversion of 4-ethylphenol into 1-(4-hydroxyphenyl)ethanol together with a small amount of 4-hydroxyacetophenone, but with no formation of the side product 4-vinylphenol reported to be formed when the similar enzyme p-cresol methylhydroxylase (PCMH) catalyses this reaction. The enantiomer of 1-(4-hydroxyphenyl)ethanol produced by 4EPMH was R(+) when horse heart cytochrome c or azurin was used as electron acceptor for the enzyme. PCMHs from various bacterial strains prod
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BAŠA ČESNIK, Helena, and Klemen LISJAK. "Volatile phenolics in Teran PTP red wine." Acta agriculturae Slovenica 107, no. 1 (2016): 5. http://dx.doi.org/10.14720/aas.2016.107.1.01.

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The volatile phenolics, 4-ethylphenol, 4-vinylphenol, 4-ethylguaiacol and 4-vinylguaiacol were quantified in Teran PTP wines that were produced in the Kras winegrowing district. The compounds were determined by using gas chromatography coupled with mass spectrometry after extraction with diethylether. Three years monitoring (2011, 2012, 2013 vintages) showed that all four undesirable compounds were identified in Teran PTP wines, however their content did not influence significantly the sensory characteristics of the wine. The average contents gained over the three-year period (2011-2013; n=82)
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Jones, K. H., P. W. Trudgill, and D. J. Hopper. "4-Ethylphenol metabolism by Aspergillus fumigatus." Applied and Environmental Microbiology 60, no. 6 (1994): 1978–83. http://dx.doi.org/10.1128/aem.60.6.1978-1983.1994.

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Takahashi, Mika, Mutsuko Hirata-Koizumi, Nobuo Nishimura, et al. "Susceptibility of newborn rats to 3-ethylphenol and 4-ethylphenol compared with that of young rats." Congenital Anomalies 46, no. 1 (2006): 26–33. http://dx.doi.org/10.1111/j.1741-4520.2006.00098.x.

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Qiu, Zegang, Ying Wang, Yali Di, et al. "One-step conversion of lignin-derived alkylphenols to light arenes by co-breaking of C–O and C–C bonds." New Journal of Chemistry 46, no. 6 (2022): 2710–21. http://dx.doi.org/10.1039/d1nj05793f.

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Renaud, Alexis, Yoann Paint, Alex Lanzutti, et al. "Sealing porous anodic layers on AA2024-T3 with a low viscosity benzoxazine resin for corrosion protection in aeronautical applications." RSC Advances 9, no. 29 (2019): 16819–30. http://dx.doi.org/10.1039/c9ra01970g.

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Tesis sobre el tema "Ethylphenol"

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Fernandes, Miguel Tiago Nunes. "Studies on the wine spoilage yeast Brettanomyces bruxellensis: 4-ethylphenol production and improved detection." Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/10986.

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Dissertação para obtenção do Grau de Mestre em Biotecnologia<br>Brettanomyces bruxellensis is a major threat to wine industry due to its spoilage ability characterized by high production of volatile phenols, mainly 4-ethylphenol. The horse sweat odor, characteristic of this phenol, causes large economic losses to wineries. A better understanding of the behavior of this yeast and better detection methods may lead to a decrease in 4-ethylphenol incidence in red wines worldwide. In the present work, we studied: (i) the ability of B. bruxellensis to enter the viable but nonculturable state by us
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Reis, Marta Lopes Egídio. "Efeito do quitosano na viabilidade de Brettanomyces bruxellensis e na produção de 4-etilfenol em vinho." Master's thesis, ISA, 2014. http://hdl.handle.net/10400.5/6878.

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Mestrado em Engenharia Alimentar - Qualidade e Segurança Alimentar - Instituto Superior de Agronomia<br>The spoilage yeast, Brettanomyces bruxellensis, can cause the formation of film in storage wine, sediments, gas production and the production of unpleasant tastes and flavors to the consumer. Chitosan is presented as a potential product to control the yeast that alter the wine. Under laboratory conditions the effect of chitosan at different concentrations was tested in the growth of various B. bruxellensis strains in synthetic medium and wine. Viability was followed in plate with GYP medium,
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Copp, Clinton W. "Production and Degradation of 4-Ethylphenol in LACTOBACILLUS SP. pep8 Cultures and in Blended Swine Lagoon Enrichments." TopSCHOLAR®, 2012. http://digitalcommons.wku.edu/theses/1189.

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4-Ethylphenol (4-EP) is a malodorant of swine waste and is derived from a component of lignin called p-coumaric acid (p-CA). The production of 4-EP from lignin in swine waste is untested. Additionally, the effect of Fe (III) on 4-EP levels is unknown. Four experiments were performed to determine if Lactobacillus sp. pep8 cultures, as well as enriched swine lagoon slurries, could liberate p-CA from lignin and convert p-CA to 4-EP. Furthermore, it was tested if the addition of Fe (III) influences the conversion of p- CA to 4-EP. Experiment 1 tested Lactobacillus sp. pep8 cultures to determine if
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Keskin, Mehmet Yigit. "Studies on the incidence of Dekkera bruxellensis in Turkish wines and effect of low temperatures on 4-ethylphenol production." Master's thesis, ISA/UL, 2012. http://hdl.handle.net/10400.5/8596.

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Mestrado Vinifera EuroMaster - Instituto Superior de Agronomia<br>Brettanomyces/Dekkera bruxellensis has the ability to produce significant amounts of 4-ethylphenol (4-EP) and cause important organoleptic defects in affected wines. In this work we investigated the incidence of B. bruxellensis and of 4-ethylphenol in Turkish red wines randomly collected at winery facilities. Among 40 samples, this species was only recovered from one sample aged in oak barrels. In 4 samples, culturable population was not found but the 4-EP concentration indicated previous Dekkera bruxellensis activity. Thus, fol
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Oro, Inês Correia Horta Lazo. "Avaliação do crescimento de leveduras de alteração em vinhos utilizando a metodologia de superficies de resposta." Master's thesis, ISA, 2014. http://hdl.handle.net/10400.5/7068.

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Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia / Universidade do Porto. Faculdade de Ciências<br>This study aimed to understand the effects of different factors on the growth of spoilage yeasts in red wine and consequent production of metabolites using response surface methodology. The combination of the effects of glucose, ethanol and free sulfur dioxide on the growth of various species of yeast change (Zygosaccharomyces bailii, Schizosaccharomyces pombe, Dekkera / Brettanomyces bruxellensis, Saccharomycodes ludwigii , Saccharomyces cerevisiae) was studied using the meth
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Pradelles, Rémi. "Etude des capacités de biosorption des levures vis-à-vis du 4-ethylphenol et de la (-)geosmine : deux molécules d'altération du vin." Dijon, 2009. http://www.theses.fr/2009DIJOS028.

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La présence de 4-éthylphénol et de ( )géosmine au sein d’un vin imposent des déviations organoleptiques qualifiées respectivement de « sueur de cheval » et de « moisi-terreux ». Leur origine microbiologique ainsi que leurs faibles seuils de perceptions posent d’importants problèmes en terme de gestion de la qualité des vins. Les levures oenologiques assurant la fermentation alcoolique sont de potentiels matériaux sorbants, notamment mis en évidence suite aux études portant sur l’élevage sur lie des vins. Ce travail se propose d’étudier leur potentiel biosorbant vis-à-vis du 4-éthylphénol et de
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Heuchel, Moritz [Verfasser], and Yvonne [Akademischer Betreuer] Traa. "Co-catalytic cracking of n-decane and 2-ethylphenol as model hydrocarbons for fossil- and bio-based feeds in FCC over zeolite catalysts / Moritz Heuchel ; Betreuer: Yvonne Traa." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2018. http://d-nb.info/1156902037/34.

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Kheir, Joyce. "Evaluation du risque Brettanomyces dans le vignoble libanais et étude cinétique de la bioconversion de l'acide p-coumarique en 4-éthylphénol." Phd thesis, Toulouse, INPT, 2012. http://oatao.univ-toulouse.fr/8929/1/kheir.pdf.

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Les altérations sensorielles des vins dues à la présence des levures du genre Brettanomyces se caractérisent par une augmentation de la teneur en phénols volatils tel que le 4-éthylphénol. Le premier objectif de ce travail était de faire un état des lieux sur le risque « éthylphénol » au Liban en s'intéressant à la présence d'un précurseur (acide p-coumarique), du microorganisme responsable (Brettanomyces) et du produit final (4-éthylphénol) dans les vins élaborés dans ce pays. Une forte hétérogénéité de concentrations en acide p-coumarique a été observée avec des valeurs variant de 0 à 31,4 m
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Hixson, Josh L. "Chemistry of hydroxycinnamate esters and their role as precursors to Dekkera produced off-flavour in wine." Thesis, 2012. http://hdl.handle.net/2440/76099.

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The potential for malodour in wine caused by the accumulation of ethylphenols has been widely studied with respect to the breakdown of the hydroxycinnamic acids, p-coumaric and ferulic acid, by D. bruxellensis. The presence of esterified hydroxycinnamate conjugates in grapes and wine is well established and they account for a large proportion of the hydroxycinnamate content. There exists the possibility that these conjugates could also provide the potential for spoilage, though they have never been linked to the direct formation of ethylphenols. The research highlighted within this thesis exam
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Wang, Yong-Siang, and 王詠翔. "Synthesis, Physical and Optoelectronic Behaviors of Ethylphenyl Fulleropyrrolidines." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/389588.

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碩士<br>國立臺北科技大學<br>有機高分子研究所<br>101<br>Fullerenes have been widely utilized as the electron acceptor material in polymer solar cells because they possess good electron affinity ability and high electron mobility. To resolve the poor solubility problem of our previously synthesized fullerene derivatives NMPC, in this study, we further design a new series of fulleropyrrolidine derivatives, including NMPEC, NPPEC, NiPPPEC, NHPEC, NEHPEC, NiPTPEC, and NCHPEC, with excellent solubility in common organic solvent. The molecular structure of these fullerene derivatives was characterized by 1H NMR, 13C N
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Capítulos de libros sobre el tema "Ethylphenol"

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Wohlfarth, Ch. "Dielectric constant of 4-ethylphenol." In Supplement to IV/6. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-75506-7_257.

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Wohlfarth, Ch. "Dielectric constant of the mixture (1) methanol; (2) 4-ethylphenol." In Supplement to IV/6. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-75506-7_462.

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Mclntire, William S., and Craig Bohmont. "The chemical and stereochemical course of oxidation of 4- ethylphenol and other 4-alkylphenols by ^-cresol methylhydroxylase." In Flavins and Flavoproteins 1987, edited by D. E. Edmondson and D. B. McCormick. De Gruyter, 1987. http://dx.doi.org/10.1515/9783110884715-113.

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Wohlfarth, Ch. "Second virial coefficient of poly[(4-ethylphenoxy)(phenoxy)phosphazene]." In Polymer Solutions. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_535.

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"2,4-Dichloro-6-ethylphenol." In Halogenated Benzenes, Toluenes and Phenols with Water. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-08-023926-2.50064-7.

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"4-Chloro-3-methyl-5-ethylphenol." In Halogenated Benzenes, Toluenes and Phenols with Water. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-08-023926-2.50069-6.

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Hixson, Josh L., Chris D. Curtin, Mark A. Sefton, and Dennis K. Taylor. "Stereospecificity of D. bruxellensis in the Production of Ethylphenol Off-Flavor in Wine." In Flavour Science. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-12-398549-1.00035-0.

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"Zinc ethylphenyl dithiocarbamate." In Toxological Evaluations. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-60280-1_12.

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"Table IV: Volatile compounds identified in the dust of swine confinement units Hydrocarbons Ketones Hexane 1) Acetone 4) «t-Pinen 1) Butanone 4) Limonen 1) Pentanone 4) 3,7,7-Trimethyl -Octanone 4) bicyclo (3,1,1)-l-0ctene-3-one 4) 2-Hepten 1) Benzene 1) Acids Toluene 1) Acetic 4)5)6) Alcohols Propionic 4)5)6) i-Butyric 1)5)6) 1-Pentanol 1) Butyric 4)5)6) 1-Heptanol 1) 1-Valeric 5)6) 4-Methylcyclo-Valeric 4)5)6) hexanol 1) Hexanoic 4)5) 2-Ethylhexanol 1) Heptanoic 4) Octanoic 4) Phenols Nonanoic 4) Decanoic 4) Phenol 1)3)6) Undecanoic 4) p-Cresol 3)4)6) Dodecanoic 4) o-Cresol 1) Laurie 3) p-Ethylphenol 3)6) Tridecanoic 4) o-Ethylphenol 4) Tetradecanoic 4) m-Ethylphenol 4) Benzoic 4) Phenyl acetic 3)4) Indoles 3-Phenyl propionic 3) Hydrocinnamic 4) Indole 2)6) Skatole 2)3)6) Miscellaneous Compounds Aldehydes 2-Pentylfuran 3) Vanillin 3) Butanal 4) 2-Butenal 4) Pentanal 4) 2-Pentenal 4) Hexanal 1)3)4) 1) = WEURMAN (13) 2-Hexenal 4) 2) = TRAVIS and ELLIOTT (31) Heptanal 1)3) 2-Heptenal 4) 3) = HAMMOND et al. (30) 2.4-Heptadienal 3)4) 4) = HAMMOND et al. (40) Nonanal 3) 2-Nonenal 3) 5) = AENGST (33) 2.4-Nonadienal 3)4) 6) = HARTUNG (34) Decanal 4) 2.4-Decadienal 3)4) Benzaldehyde 1)4)." In Odour Prevention and Control of Organic Sludge and Livestock Farming. CRC Press, 1986. http://dx.doi.org/10.1201/9781482286311-138.

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Actas de conferencias sobre el tema "Ethylphenol"

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Lopez, Juan, Susana Blanco, Alberto Macario, and Fernando Gonzalez. "TRANSIENT CHIRALITY AND MICROSOLVATION IN p-ETHYLPHENOL." In 2022 International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2022. http://dx.doi.org/10.15278/isms.2022.te02.

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del Valle, Manel, Anna Herrera-Chacon, and Andreu González-Calabuig. "Comparative study of two Electronic Tongues for the detection of ethylphenols by MIP-based and chemically modified voltammetric sensors." In 7th International Electronic Conference on Sensors and Applications. MDPI, 2020. http://dx.doi.org/10.3390/ecsa-7-08237.

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Singh, Jagvir, Kamelesh Kumari, Prashant Singh, Gopal K. Mehrotra, and Netra Pal Singh. "Synthesis of metal-Bis(N-(3-ethylphenyl)-pyridine-2-acetyl-hydrazine complexes and evaluation of their magnetic and antimicrobial activity." In FUNCTIONAL MATERIALS: Proceedings of the International Workshop on Functional Materials (IWFM-2011). AIP, 2012. http://dx.doi.org/10.1063/1.4736927.

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